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Low‐Cost Solar Cell Based on a Composite of Silicon Nanowires and a Highly Conductive Nonphotoactive Polymer
Author(s) -
Liu Zhen,
Wang Hui,
Fung ManKeung,
Lee ChunSing,
Zhang XiaoHong
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201302718
Subject(s) - nanowire , materials science , pedot:pss , polymer solar cell , indium tin oxide , solar cell , hybrid solar cell , energy conversion efficiency , conductive polymer , polymer , amorphous solid , amorphous silicon , doping , composite number , nanotechnology , optoelectronics , chemical engineering , crystalline silicon , composite material , chemistry , thin film , organic chemistry , engineering
Hybrid bulk heterojunction solar cells based on inorganic‐nanowire (NW)/conjugated‐polymer composites have been shown to achieve a power conversion efficiency (PCE) of 1–3 %, which is much lower than theoretically expected. This work addresses the short exciton diffusion lengths in common photoactive polymers with a new solar‐cell design that has a PCE of 4.68 % (see scheme; ITO=indium tin oxide, G‐PEDOT:PSS=glycerol‐doped poly(3,4‐ethylenedioxythiophene)‐poly(styrenesulfonate); E=electropolymerized; a=amorphous).
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