Improved Photovoltaic Performance of MEH‐PPV/PCBM Solar Cells via Incorporation of Si Nanocrystals | Zendy

Yan Quanxiang | Zendy; Zuo Lijian | Zendy; Gu Zhuowei | Zendy; Yang Ligong | Zendy; Wang Rong | Zendy; Wang Mang | Zendy; Chen Hongzheng | Zendy

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Improved Photovoltaic Performance of MEH‐PPV/PCBM Solar Cells via Incorporation of Si Nanocrystals

Author(s) -

Yan Quanxiang,

Zuo Lijian,

Gu Zhuowei,

Yang Ligong,

Wang Rong,

Wang Mang,

Chen Hongzheng

Publication year - 2013

Publication title -

chinese journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.28

H-Index - 41

eISSN - 1614-7065

pISSN - 1001-604X

DOI - 10.1002/cjoc.201300303

Subject(s) - energy conversion efficiency , chemistry , photovoltaic system , polymer solar cell , cathode , quantum efficiency , nanocrystal , optoelectronics , nanotechnology , materials science , ecology , biology

We have studied the effect of silicon nanocrystals (SiNCs) as a third component on performance of organic bulk heterojunction solar cells composed of poly[2‐methoxy,5‐(2′‐ethylhexyloxy)‐1,4‐phenylene vinylene] (MEH‐PPV):[6,6]‐phenyl‐C61‐butyric acid methyl ester (PCBM) blend film. By adding suitable amounts of SiNCs into MEH‐PPV:PCBM blend, the device performance such as external quantum efficiency, short circuit current density ( J SC ), and power conversion efficiency (PCE) improved. Incorporation of 2.5% SiNCs in the blend led to 13.6% improvement of J SC , which in turn resulted in 18% improvement of PCE up to 2.28%. The improved performance was mainly due to the improvements both in the charge generation from the interface of MEH‐PPV/SiNCs and the charge collection at the cathode.

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