Further tweaks of its triple-junction InGaAs InGaAs (indium gallium arsenide) solar cell have led to Sharp reporting a new 37.9% record conversion efficiency.
The company had previously reported in December 2012 a new record of 37.7%. The latest efficiency improvement was due to further indium, gallium, and arsenide material combination optimization that improved light absorption across the various wavelengths.
As before, the work was carried out with support from the New Energy and Industrial Technology Development Organization (NEDO), while the results were verified by the National Institute of Advanced Industrial Science and Technology (AIST).
Source: PV Tech