Using water‐soluble nickel acetate as hole collection layer for stable polymer solar cells | Zendy

Zhang Wenqing | Zendy; Tan Zhan'ao | Zendy; Qian Deping | Zendy; Xu Qi | Zendy; Li Liangjie | Zendy; Li Shusheng | Zendy; Wang Fuzhi | Zendy; Zheng Hua | Zendy; Li Yongfang | Zendy

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Using water‐soluble nickel acetate as hole collection layer for stable polymer solar cells

Author(s) -

Zhang Wenqing,

Tan Zhan'ao,

Qian Deping,

Xu Qi,

Li Liangjie,

Li Shusheng,

Wang Fuzhi,

Zheng Hua,

Li Yongfang

Publication year - 2012

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.38251

Subject(s) - pedot:pss , materials science , photoactive layer , indium tin oxide , polymer solar cell , layer (electronics) , energy conversion efficiency , chemical engineering , active layer , electrode , nickel , optoelectronics , nanotechnology , chemistry , engineering , thin film transistor , metallurgy

We report polymer solar cells (PSCs) based on poly(3‐hexylthiophene (P3HT) and [6,6]‐phenyl‐C 61 ‐butyric acid methyl ester (PCBM) using water‐soluble nickel acetate (Ni(CH 3 COO) 2 , NiAc) instead of acidic poly(3,4‐ethylenedioxythiophene) : poly(styrenesulfonate) (PEDOT : PSS) as hole collection layer (HCL) between the indium tin oxide (ITO) electrode and photoactive layer. The NiAc layer can effectively decrease R s and increase R p and shows effective hole collection property. Under the illumination of AM1.5G, 100 mW/cm 2 , the short‐circuit current density ( J sc ) of the NiAc based device (ITO/NiAc/P3HT : PCBM/Ca/Al) reach 11.36 mA/cm 2 , which is increased by 11% in comparison with that (10.19 mA/cm 2 ) of PEDOT : PSS based device (ITO/PEDOT : PSS/P3HT : PCBM/Ca/Al). The power conversion efficiency of the NiAc based devices reach 3.76%, which is comparable to that (3.77%) of the device with PEDOT : PSS HCL under the same experimental conditions. Moreover, NiAc based PSCs show superior long‐term stability than PEDOT : PSS based PSCs. Our work gives a new option for HCL selection in designing more stable PSCs. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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