Realizing high photovoltaic efficiency with parallel multijunction solar cells based on spectrum-splitting and -concentrating diffractive optical element<xref ref-type="fn" rid="cpb142847fn1">*</xref>

Realizing high photovoltaic efficiency with parallel multijunction solar cells based on spectrum-splitting and -concentrating diffractive optical element*

Wang Jin-Ze^a),^b),^c), Huang Qing-Li^a),^b),^c), Xu Xin^a),^b),^c), Quan Bao-Gang^a),^d), Luo Jian-Heng^a),^b),^c), Zhang Yan^e), Ye Jia-Sheng^e), Li Dong-Mei^a),^b),^c), Meng Qing-Bo^a),^b),^c)†, Yang Guo-Zhen^a),^f)‡

(a) Photon flux spectrum on each solar cell on P ₂ of 4-junction solar cells. (b) Limiting efficiency versus band gap for radiation in zero-order diffraction region.