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Toward Highly Efficient Large‐Area ITO‐Free Organic Solar Cells with a Conductance‐Gradient Transparent Electrode
Author(s) -
Zuo Lijian,
Zhang Shuhua,
Li Hanying,
Chen Hongzheng
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201502827
Subject(s) - materials science , electrode , organic solar cell , conductance , optoelectronics , nanotechnology , composite material , polymer , condensed matter physics , physics , chemistry
Highly efficient large‐area organic solar cells (OSCs) with power conversion efficiency up to 7.09%, and device area of 4 cm 2 are demonstrated on flexible substrates. A conductance‐ or thickness‐gradient ultra‐thin Ag‐based transparent electrode is developed to better balance the light trapping and energy loss, owing to the inhomogeneous energy‐loss density on the large OSC sheet.