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Nature Photonics volume 20, pages 11–23 (2026)
Interlayers (ILs) play a pivotal role in perovskite solar cells, enabling efficient charge extraction, suppressing recombination and enhancing device stability. Positioned between the light-absorbing perovskite layer and the electrodes, ILs facilitate selective carrier transport while mitigating interfacial losses. Unlike GaAs cells and heterojunction with intrinsic thin layer silicon cells, which benefit from coherent, chemically compatible interfaces, perovskite solar cells exhibit structural and energetic mismatches at the interfaces between the perovskite and charge transport layers (CTLs). To address these challenges, functional interfacial ILs are introduced at both the CTL/perovskite and CTL/electrode interfaces. This Review examines the evolution of these ILs, from simple passivation layers to multifunctional components that regulate electric fields and carrier dynamics. We highlight recent advances in materials and architectures, classify ILs by their device position and discuss design strategies inspired by mature photovoltaic technologies. We argue that interfacial IL engineering is crucial to radiative efficiency and stable, high-performance perovskite solar cells.
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Nayak, P. K., Mahesh, S., Snaith, H. J. & Cahen, D. Photovoltaic solar cell technologies: analysing the state of the art. Nat. Rev. Mater. 4, 269–285 (2019).
Article ADS Google Scholar
Li, W. et al. Passivating contacts for crystalline silicon solar cells: an overview of the current advances and future perspectives. Adv. Energy Mater. 14, 2304338 (2024).
Article Google Scholar
Schulte, K. L., Simon, J., Steiner, M. A. & Ptak, A. J. Modeling and design of III-V heterojunction solar cells for enhanced performance. Cell Rep. Phys. Sci. 4, (2023).
Li, C. et al. Insights into ultrafast carrier dynamics in perovskite thin films and solar cells. ACS Photon. 7, 1893–1907 (2020).
Article Google Scholar
Shi, J. et al. From ultrafast to ultraslow: charge-carrier dynamics of perovskite solar cells. Joule 2, 879–901 (2018).
Article Google Scholar
Pan, H., Shao, H., Zhang, X. L., Shen, Y. & Wang, M. Interface engineering for high-efficiency perovskite solar cells. J. Appl. Phys. 129, 130904 (2021).
Article ADS Google Scholar
Yang, G. et al. Study on carrier dynamics of perovskite solar cells via transient absorption. J. Alloys Compd. 952, 170051 (2023).
Article Google Scholar
Stolterfoht, M. et al. The impact of energy alignment and interfacial recombination on the internal and external open-circuit voltage of perovskite solar cells. Energy Environ. Sci. 12, 2778–2788 (2019).
Article Google Scholar
Gharibzadeh, S. et al. Record open-circuit voltage wide-bandgap perovskite solar cells utilizing 2D/3D perovskite heterostructure. Adv. Energy Mater. 9, 1803699 (2019).
Article Google Scholar
Krückemeier, L., Rau, U., Stolterfoht, M. & Kirchartz, T. How to report record open-circuit voltages in lead-halide perovskite solar cells. Adv. Energy Mater. 10, 1902573 (2020).
Article Google Scholar
Shin, S. S. et al. Energy-level engineering of the electron transporting layer for improving open-circuit voltage in dye and perovskite-based solar cells. Energy Environ. Sci. 12, 958–964 (2019).
Article Google Scholar
Shin, S. S. et al. Tailoring of electron-collecting oxide nanoparticulate layer for flexible perovskite solar cells. J. Phys. Chem. Lett. 7, 1845–1851 (2016).
Article Google Scholar
Zheng, Y. et al. Towards 26% efficiency in inverted perovskite solar cells via interfacial flipped band bending and suppressed deep-level traps. Energy Environ. Sci. 17, 1153–1162 (2024).
Article Google Scholar
Hagfeldt, A., Boschloo, G., Sun, L., Kloo, L. & Pettersson, H. Dye-sensitized solar cells. Chem. Rev. 110, 6595–6663 (2010).
Article Google Scholar
Lee, M. M., Teuscher, J., Miyasaka, T., Murakami, T. N. & Snaith, H. J. Efficient hybrid solar cells based on meso-superstructured organometal halide perovskites. Science 338, 643–647 (2012).
Article ADS Google Scholar
Kim, H.-S. et al. Lead iodide perovskite sensitized all-solid-state submicron thin film mesoscopic solar cell with efficiency exceeding 9%. Sci. Rep. 2, 591 (2012).
Article ADS Google Scholar
Heo, J. H. et al. Efficient inorganic–organic hybrid heterojunction solar cells containing perovskite compound and polymeric hole conductors. Nat. Photon. 7, 486–491 (2013).
Article ADS Google Scholar
Min, H. et al. Efficient, stable solar cells by using inherent bandgap of α-phase formamidinium lead iodide. Science 366, 749–753 (2019).
Article ADS Google Scholar
Wang, Q. et al. Enhanced performance of perovskite solar cells via low-temperature-processed mesoporous SnO2. Adv. Mater. Interfaces 7, 1901866 (2020).
Article Google Scholar
Yin, X. et al. Novel NiO nanoforest architecture for efficient inverted mesoporous perovskite solar cells. ACS Appl. Mater. Interfaces 11, 44308–44314 (2019).
Article Google Scholar
Chen, H. et al. Improved charge extraction in inverted perovskite solar cells with dual-site-binding ligands. Science 384, 189–193 (2024).
Article ADS Google Scholar
Liu, S. et al. Buried interface molecular hybrid for inverted perovskite solar cells. Nature 632, 536–542 (2024).
Azmi, R. et al. Double-side 2D/3D heterojunctions for inverted perovskite solar cells. Nature 628, 93–98 (2024).
Article ADS Google Scholar
Yu, M. et al. The influence of the electron transport layer on charge dynamics and trap-state properties in planar perovskite solar cells. RSC Adv. 10, 12347–12353 (2020).
Article ADS Google Scholar
Cai, F. et al. Eliminated hysteresis and stabilized power output over 20% in planar heterojunction perovskite solar cells by compositional and surface modifications to the low-temperature-processed TiO2 layer. J. Mater. Chem. A 5, 9402–9411 (2017).
Article Google Scholar
Haque, M. A., Troughton, J. & Baran, D. Processing-performance evolution of perovskite solar cells: from large grain polycrystalline films to single crystals. Adv. Energy Mater. 10, 1902762 (2020).
Article Google Scholar
Du, B., He, K., Zhao, X. & Li, B. Defect passivation scheme toward high-performance halide perovskite solar cells. Polymers 15, 2010 (2023).
Article Google Scholar
Wang, S., Li, M.-H., Jiang, Y. & Hu, J.-S. Instability of solution-processed perovskite films: origin and mitigation strategies. Mater. Futures 2, 012102 (2023).
Article ADS Google Scholar
Bi, L. et al. Deciphering the roles of MA-based volatile additives for α-FAPbI3 to enable efficient inverted perovskite solar cells. J. Am. Chem. Soc. 145, 5920–5929 (2023).
Article ADS Google Scholar
Luo, C. et al. Engineering the buried interface in perovskite solar cells via lattice-matched electron transport layer. Nat. Photon. 17, 856–864 (2023).
Article ADS Google Scholar
Kim, C. et al. Trimming defective perovskite layer surfaces for high-performance solar cells. Energy Environ. Sci. 17, 8582–8592 (2024).
Article Google Scholar
Wolff, C. M., Caprioglio, P., Stolterfoht, M. & Neher, D. Nonradiative recombination in perovskite solar cells: the role of interfaces. Adv. Mater. 31, 1902762 (2019).
Article Google Scholar
Miah, M. H. et al. Key degradation mechanisms of perovskite solar cells and strategies for enhanced stability: issues and prospects. RSC Adv. 15, 628–654 (2025).
Article ADS Google Scholar
Jiang, Q. et al. Surface passivation of perovskite film for efficient solar cells. Nat. Photon. 13, 460–466 (2019).
Article ADS Google Scholar
Cao, Y. et al. Defects passivation strategy for efficient and stable perovskite solar cells. Adv. Mater. Interfaces 9, 2200179 (2022).
Article Google Scholar
Zhang, F. et al. Perovskite photovoltaic interface: from optimization towards exemption. Nano Energy 124, 109503 (2024).
Article Google Scholar
Lan, C. et al. Application of bidirectional passivation agents at the tin oxide/perovskite interface to enhance the performance of perovskite solar cells. Solar RRL 9, 2500241 (2025).
Article Google Scholar
Lv, X. et al. One-pot surface and buried interface manipulation of perovskite film for efficient solar cells. Cell Rep. Phys. Sci. 4, 101376 (2023).
Article Google Scholar
Jang, Y.-W. et al. Intact 2D/3D halide junction perovskite solar cells via solid-phase in-plane growth. Nat. Energy 6, 63–71 (2021).
Article ADS Google Scholar
Ni, Z. et al. Resolving spatial and energetic distributions of trap states in metal halide perovskite solar cells. Science 367, 1352–1358 (2020).
Article ADS Google Scholar
Ahn, N. & Choi, M. Towards long-term stable perovskite solar cells: degradation mechanisms and stabilization techniques. Adv. Sci. 11, 2306110 (2024).
Article Google Scholar
Khadka, D. B., Shirai, Y., Yanagida, M. & Miyano, K. Degradation of encapsulated perovskite solar cells driven by deep trap states and interfacial deterioration. J. Mater. Chem. C 6, 162–170 (2018).
Article Google Scholar
Min, H. et al. Perovskite solar cells with atomically coherent interlayers on SnO2 electrodes. Nature 598, 444–450 (2021).
Article ADS Google Scholar
Wang, Y. et al. Lattice mismatch at the heterojunction of perovskite solar cells. Angew. Chem. Int. Ed. 63, e202405878 (2024).
Article Google Scholar
Tan, H. et al. Efficient and stable solution-processed planar perovskite solar cells via contact passivation. Science 355, 722–726 (2017).
Article ADS Google Scholar
Kim, M. et al. Methylammonium chloride induces intermediate phase stabilization for efficient perovskite solar cells. Joule 3, 2179–2192 (2019).
Article Google Scholar
Odysseas Kosmatos, K. et al. Methylammonium chloride: a key additive for highly efficient, stable, and up-scalable perovskite solar cells. Energy Environ. Mater. 2, 79–92 (2019).
Article Google Scholar
Park, J. et al. Controlled growth of perovskite layers with volatile alkylammonium chlorides. Nature https://doi.org/10.1038/s41586-023-05825-y (2023).
Hu, W., Yang, S. & Yang, S. Surface modification of TiO2 for perovskite solar cells. Trends Chem. 2, 148–162 (2020).
Article Google Scholar
Tang, X. et al. Enhancing the efficiency and stability of perovskite solar cells via a polymer heterointerface bridge. Nat. Photon. 19, 701–708 (2025).
Guerrero, A., Juarez-Perez, E. J., Bisquert, J., Mora-Sero, I. & Garcia-Belmonte, G. Electrical field profile and doping in planar lead halide perovskite solar cells. Appl. Phys. Lett. https://doi.org/10.1063/1.4896779 (2014).
Aharon, S., Gamliel, S., Cohen, B. E. & Etgar, L. Depletion region effect of highly efficient hole conductor free CH3NH3PbI3 perovskite solar cells. Phys. Chem. Chem. Phys. 16, 10512–10518 (2014).
Article Google Scholar
Liu, J. et al. Oxygen vacancy management for high-temperature mesoporous SnO2 electron transport layers in printable perovskite solar cells. Angew. Chem. Int. Ed. 61, e202202012 (2022).
Article ADS Google Scholar
Dong, Q. et al. Interpenetrating interfaces for efficient perovskite solar cells with high operational stability and mechanical robustness. Nat. Commun. 12, 973 (2021).
Article ADS Google Scholar
Bu, T. et al. Universal passivation strategy to slot-die printed SnO2 for hysteresis-free efficient flexible perovskite solar module. Nat. Commun. 9, 4609 (2018).
Article ADS Google Scholar
Lee, J. H. et al. Interfacial α-FAPbI3 phase stabilization by reducing oxygen vacancies in SnO2−x. Joule 7, 380–397 (2023).
Article Google Scholar
Klasen, A. et al. Removal of surface oxygen vacancies increases conductance through TiO2 thin films for perovskite solar cells. J. Phys. Chem. C 123, 13458–13466 (2019).
Article Google Scholar
Yoo, J. J. et al. Efficient perovskite solar cells via improved carrier management. Nature 590, 587–593 (2021).
Article ADS Google Scholar
Giesl, F. et al. Investigation of electrical transport across the CIGSSe/Mo(Se,S)2 interface of a CIGSSe-based solar cell by experiment and device simulation. Thin Solid Films 763, 139570 (2022).
Article ADS Google Scholar
Paik, M. J., Kim, Y. Y., Kim, J., Park, J. & Seok, S. I. Ultrafine SnO2 colloids with enhanced interface quality for high-efficiency perovskite solar cells. Joule 8, 2073–2086 (2024).
Article Google Scholar
Dai, Z. et al. Interfacial toughening with self-assembled monolayers enhances perovskite solar cell reliability. Science 372, 618–622 (2021).
Article ADS Google Scholar
Gao, D. et al. Long-term stability in perovskite solar cells through atomic layer deposition of tin oxide. Science 386, 187–192 (2024).
Article ADS Google Scholar
Li, Z. et al. Organometallic-functionalized interfaces for highly efficient inverted perovskite solar cells. Science 376, 416–420 (2022).
Article ADS Google Scholar
Liu, C. et al. Two-dimensional perovskitoids enhance stability in perovskite solar cells. Nature https://doi.org/10.1038/s41586-024-07764-8 (2024).
Lin, Y. et al. A Nd@C82–polymer interface for efficient and stable perovskite solar cells. Nature 642, 78–84 (2025).
Article ADS Google Scholar
Kim, J. et al. Susceptible organic cations enable stable and efficient perovskite solar cells. Joule https://doi.org/10.1016/j.joule.2025.101879 (2025).
Wang, C., Dong, X., Chen, F., Liu, G. & Zheng, H. Recent progress of two-dimensional Ruddlesden-Popper perovskites in solar cells. Mater. Chem. Front. 7, 5786–5805 (2023).
Article Google Scholar
Sirbu, D., Balogun, F. H., Milot, R. L. & Docampo, P. Layered perovskites in solar cells: structure, optoelectronic properties, and device design. Adv. Energy Mater. 11, 2003877 (2021).
Article Google Scholar
Fu, J. et al. Organic and inorganic sublattice coupling in two-dimensional lead halide perovskites. Nat. Commun. 15, 4562 (2024).
Article ADS Google Scholar
Oner, S. M. et al. Surface defect formation and passivation in formamidinium lead triiodide (FAPbI3) perovskite solar cell absorbers. J. Phys. Chem. Lett. 13, 324–330 (2022).
Article Google Scholar
Azmi, R. et al. Damp heat–stable perovskite solar cells with tailored-dimensionality 2D/3D heterojunctions. Science 376, 73–77 (2022).
Article ADS Google Scholar
Yoo, J. J. et al. An interface stabilized perovskite solar cell with high stabilized efficiency and low voltage loss. Energy Environ. Sci. 12, 2192–2199 (2019).
Article Google Scholar
Park, K., Lee, J.-H. & Lee, J.-W. Surface defect engineering of metal halide perovskites for photovoltaic applications. ACS Energy Lett. 7, 1230–1239 (2022).
Article Google Scholar
Zhang, W. et al. Ultrastable and efficient slight-interlayer-displacement 2D Dion-Jacobson perovskite solar cells. Nat. Commun. 15, 5709 (2024).
Article ADS Google Scholar
Tan, S. et al. Spontaneous formation of robust two-dimensional perovskite phases. Science 388, 639–645 (2025).
Article ADS Google Scholar
deQuilettes, D. W. et al. Reduced recombination via tunable surface fields in perovskite thin films. Nat. Energy 9, 457–466 (2024).
Article ADS Google Scholar
Sidhik, S. et al. Deterministic fabrication of 3D/2D perovskite bilayer stacks for durable and efficient solar cells. Science 377, 1425–1430 (2022).
Article ADS Google Scholar
Sidhik, S. et al. Two-dimensional perovskite templates for durable, efficient formamidinium perovskite solar cells. Science 384, 1227–1235 (2024).
Article ADS Google Scholar
Zhang, F. et al. Metastable Dion-Jacobson 2D structure enables efficient and stable perovskite solar cells. Science 375, 71–76 (2022).
Article ADS Google Scholar
Tan, S. et al. Stability-limiting heterointerfaces of perovskite photovoltaics. Nature 605, 268–273 (2022).
Article ADS Google Scholar
Liu, N. et al. Multifunctional anti-corrosive interface modification for inverted perovskite solar cells. Adv. Energy Mater. https://doi.org/10.1002/aenm.202300025 (2023).
Bi, E. et al. Diffusion engineering of ions and charge carriers for stable efficient perovskite solar cells. Nat. Commun. 8, 15330 (2017).
Article ADS Google Scholar
Peng, J. et al. Centimetre-scale perovskite solar cells with fill factors of more than 86 per cent. Nature 601, 573–578 (2022).
Article ADS Google Scholar
Kim, H. et al. Polymethyl methacrylate as an interlayer between the halide perovskite and copper phthalocyanine layers for stable and efficient perovskite solar cells. Adv. Funct. Mater. 32, 2110473 (2022).
Article Google Scholar
Wu, S. et al. A chemically inert bismuth interlayer enhances long-term stability of inverted perovskite solar cells. Nat. Commun. 10, 1161 (2019).
Article ADS Google Scholar
Li, X. et al. Constructing heterojunctions by surface sulfidation for efficient inverted perovskite solar cells. Science 375, 434–437 (2022).
Article ADS Google Scholar
Li, C. et al. Rational design of Lewis base molecules for stable and efficient inverted perovskite solar cells. Science 379, 690–694 (2023).
Article ADS Google Scholar
Jiang, Q. et al. Surface reaction for efficient and stable inverted perovskite solar cells. Nature https://doi.org/10.1038/s41586-022-05268-x (2022).
Levine, I. et al. Charge transfer rates and electron trapping at buried interfaces of perovskite solar cells. Joule 5, 2915–2933 (2021).
Article Google Scholar
Li, W., Martínez-Ferrero, E. & Palomares, E. Self-assembled molecules as selective contacts for efficient and stable perovskite solar cells. Mater. Chem. Front. 8, 681–699 (2024).
Article Google Scholar
Li, M., Liu, M., Qi, F., Lin, F. R. & Jen, A. K.-Y. Self-assembled monolayers for interfacial engineering in solution-processed thin-film electronic devices: design, fabrication, and applications. Chem. Rev. 124, 2138–2204 (2024).
Article Google Scholar
Novak, M. et al. Low-voltage p- and n-type organic self-assembled monolayer field effect transistors. Nano Lett. 11, 156–159 (2011).
Article ADS Google Scholar
Isikgor, F. H. et al. Molecular engineering of contact interfaces for high-performance perovskite solar cells. Nat. Rev. Mater. 8, 89–108 (2023).
Article ADS Google Scholar
Abrusci, A. et al. High-performance perovskite-polymer hybrid solar cells via electronic coupling with fullerene monolayers. Nano Lett. 13, 3124–3128 (2013).
Article ADS Google Scholar
Liu, L. et al. Fully printable mesoscopic perovskite solar cells with organic silane self-assembled monolayer. J. Am. Chem. Soc. 137, 1790–1793 (2015).
Article ADS Google Scholar
Zuo, L. et al. Enhanced photovoltaic performance of CH3NH3PbI3 perovskite solar cells through interfacial engineering using self-assembling monolayer. J. Am. Chem. Soc. 137, 2674–2679 (2015).
Article ADS Google Scholar
Yang, G. et al. Interface engineering in planar perovskite solar cells: energy level alignment, perovskite morphology control and high performance achievement. J. Mater. Chem. A 5, 1658–1666 (2017).
Article Google Scholar
Hou, Y. et al. A generic interface to reduce the efficiency-stability-cost gap of perovskite solar cells. Science 358, 1192–1197 (2017).
Article ADS Google Scholar
Park, S. M. et al. Low-loss contacts on textured substrates for inverted perovskite solar cells. Nature 624, 289–294 (2023).
Article ADS Google Scholar
He, R. et al. Improving interface quality for 1-cm2 all-perovskite tandem solar cells. Nature 618, 80–86 (2023).
Article ADS Google Scholar
Xu, Z. et al. Reducing energy barrier of δ-to-α phase transition for printed formamidinium lead iodide photovoltaic devices. Nano Energy 91, 106658 (2022).
Article Google Scholar
Jeong, S.-Y., Kim, H.-S. & Park, N.-G. Challenges for thermally stable spiro-MeOTAD toward the market entry of highly efficient perovskite solar cells. ACS Appl. Mater. Interfaces 14, 34220–34227 (2022).
Article Google Scholar
Kassem, H., Salehi, A. & Kahrizi, M. Recent advances in poly(3-hexylthiophene) and its applications in perovskite solar cells. Energy Technology 12, 2301032 (2024).
Article Google Scholar
Perumbalathodi, N., Su, T.-S., He, Z.-F., Kannankutty, K. & Wei, T.-C. Bidirectional passivation for highly efficient and stable CuSCN-based perovskite solar cells using (3-mercaptopropyl) trimethoxysilane. ACS Appl. Energy Mater. 7, 3656–3666 (2024).
Article Google Scholar
Jung, E. H. et al. Efficient, stable and scalable perovskite solar cells using poly(3-hexylthiophene). Nature 567, 511–515 (2019).
Article ADS Google Scholar
Bai, Y. et al. Complex metal oxides as emerging inorganic hole-transporting materials for perovskite solar cells. Small 20, 2310227 (2024).
Article Google Scholar
Jeong, M. J. et al. Architecture for high performance semi-transparent perovskite solar cells. Adv. Energy Mater. 12, 2200661 (2022).
Article Google Scholar
Chen, P. et al. Multifunctional ytterbium oxide buffer for perovskite solar cells. Nature 625, 516–522 (2024).
Article ADS Google Scholar
Zhao, X. et al. Accelerated aging of all-inorganic, interface-stabilized perovskite solar cells. Science 377, 307–310 (2022).
Article ADS Google Scholar
Ouedraogo, N. A. N. et al. Printing perovskite solar cells in ambient air: a review. Adv. Energy Mater. 14, 2401463 (2024).
Article Google Scholar
Yoo, J. W. et al. R4N+ and Cl− stabilized α-formamidinium lead triiodide and efficient bar-coated mini-modules. Joule 7, 797–809 (2023).
Article Google Scholar
Bu, T. et al. Modulating crystal growth of formamidinium–caesium perovskites for over 200 cm2 photovoltaic sub-modules. Nat. Energy 7, 528–536 (2022).
Bi, E. et al. Efficient perovskite solar cell modules with high stability enabled by iodide diffusion barriers. Joule 3, 2748–2760 (2019).
Article Google Scholar
Feng, Q. et al. Governing PbI6 octahedral frameworks for high-stability perovskite solar modules. Energy Environ. Sci. 15, 4404–4413 (2022).
Article Google Scholar
Yang, X. et al. Buried interfaces in halide perovskite photovoltaics. Adv. Mater. 33, 2006435 (2021).
Article Google Scholar
Weerasinghe, H. C. et al. The first demonstration of entirely roll-to-roll fabricated perovskite solar cell modules under ambient room conditions. Nat. Commun. 15, 1656 (2024).
Article ADS Google Scholar
Pham, D. P., Lee, S. & Yi, J. Potential high efficiency of GaAs solar cell with heterojunction carrier selective contact layers. Phys. B 611, 412856 (2021).
Article Google Scholar
Green, M. A. & Ho-Baillie, A. W. Pushing to the limit: radiative efficiencies of recent mainstream and emerging solar cells. ACS Energy Lett. 4, 1639–1644 (2019).
Article Google Scholar
Yeom, K. M. et al. Quantum barriers engineering toward radiative and stable perovskite photovoltaic devices. Nat. Commun. 15, 4547 (2024).
Article ADS Google Scholar
Zhao, Y. et al. Inactive (PbI2)2RbCl stabilizes perovskite films for efficient solar cells. Science 377, 531–534 (2022).
Article ADS Google Scholar
Yablonovitch, E. Lead halides join the top optoelectronic league. Science 351, 1401–1401 (2016).
Article ADS Google Scholar
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This research was supported by the Challengeable Future Defense Technology Research and Development Program through the Agency For Defense Development (ADD) funded by the Defense Acquisition Program Administration (DAPA) in 2024 (grant no. 912765601). Additional support was provided by the National Research Foundation of Korea (NRF) through the Ministry of Science, ICT and Future Planning (MSIP) under grants No. RS-2018-NR030954, RS-2024-00418209, and RS-2024-00345042. This work was also supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) from the Ministry of Trade, Industry and Energy (20214000000680).
These authors contributed equally: Seong Sik Shin, Byung-wook Park.
SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, South Korea
Seong Sik Shin
Department of Nano Science and Technology and Department of Nano Engineering, Sungkyunkwan University, Suwon, South Korea
Seong Sik Shin
SKKU Institute of Energy Science & Technology (SIEST), Sungkyunkwan University, Suwon, Republic of Korea
Seong Sik Shin
Department of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
Byung-wook Park & Sang Il Seok
School of Civil, Environmental, and Architectural Engineering, Korea University, Seoul, Republic of Korea
Jun Hong Noh
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S.S.S., B.P. and J.H.N. drafted the manuscript. S.I.S. initiated the subject of the Review and edited the text.
Correspondence to Jun Hong Noh or Sang Il Seok.
The authors declare no competing interests.
Nature Photonics thanks Bin Chen and the other, anonymous, reviewer(s) for their contribution to the peer review of this work.
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Shin, S.S., Park, Bw., Noh, J.H. et al. Interlayer engineering in metal halide perovskite photovoltaics. Nat. Photon. 20, 11–23 (2026). https://doi.org/10.1038/s41566-025-01809-8
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