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题名: High efficient inverted polymer solar cells with different annealing treatment
作者: Xu, Xiaowei1;  Zhang, Fujun1;  Zhang, Jian2;  Wang, Hui3;  Zhuo, Zuliang1;  Liu, Yang1;  Wang, Jian1;  Wang, Zixuan1;  Xu, Zheng1
关键词: Inverted polymer solar cells ;  Annealing treatment ;  P3HT:PCBM ;  Buffer layers
刊名: MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
发表日期: 2012-05-01
DOI: 10.1016/j.msec.2012.01.008
卷: 32, 期:4, 页:685-691
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Materials Science, Biomaterials
研究领域[WOS]: Materials Science
英文摘要: Inverted polymer solar cells (IPSCs) were fabricated with cesium carbonate (Cs2CO3) modified indium tin oxide (ITO) substrates as the electrode and molybdenum trioxide (MoO3) modified Al as the anode. The Cs2CO3 dissolved in 2-ethoxyethanol was spin-coated on ITO substrates, showing snowflake-like morphology characterized by the scanning electron microscope (SEM). The absorption, X-ray diffraction as well as the morphology of the active layer were measured before and after annealing treatment. The IPSCs with annealing treatments on the active layers and MoO3 layers exhibited the maximum power conversion efficiency (PCE) approaching to 2%, with open circuit voltage (V-oc) of 0.57 V. short circuit current density (J(sc)) of 8.8 mA/cm(2) and fill factor (FF) of 38.7%. The performance of IPSCs was dramatically decreased by annealing treatment after the deposition of Al cathode, which may be due to the diffusion of Al atom crossing the MoO3 layer forming new channels for charge carrier collection. However, the new channels are not beneficial to the charge carrier collection, which is demonstrated from that the J(sc) of IPSCs was evidently decreased from 8.8 to 4.6 mA/cm(2) by annealing treatment after deposition Al layer. The annealing treatment after deposition of MoO3 could improve the interfacial contact to aid in electron extraction. (c) 2012 Elsevier B.V. All rights reserved.
关键词[WOS]: POLY(3-HEXYLTHIOPHENE) METHANO-FULLERENE ;  VERTICAL PHASE-SEPARATION ;  OPEN-CIRCUIT VOLTAGE ;  PHOTOVOLTAIC DEVICES ;  PERFORMANCE ;  BLENDS ;  MORPHOLOGY ;  IMPROVEMENT ;  CS2CO3 ;  LAYER
语种: 英语
WOS记录号: WOS:000303299300010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138087
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Beijing Jiaotong Univ, Key Lab Luminescence & Opt Informat, Minist Educ China, Beijing 100044, Peoples R China
2.Dalian Inst Chem Phys CAS, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Tech Inst Phys & Chem CAS, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China

Recommended Citation:
Xu, Xiaowei,Zhang, Fujun,Zhang, Jian,et al. High efficient inverted polymer solar cells with different annealing treatment[J]. MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,2012,32(4):685-691.
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