ICCAS OpenIR
Evolved Phase Separation toward Balanced Charge Transport and High Efficiency in Polymer Solar Cells
Fan, Haijun1,2; Zhang, Maojie1,2; Guo, Xia1,2; Li, Yongfang1; Zhan, Xiaowei1
2011-09-01
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume3Issue:9Pages:3646-3653
AbstractUnderstanding effect of morphology on charge carrier transport within polymer/fullerene bulk heterojunction is necessary to develop high-performance polymer solar cells. In this work, we synthesized a new benzodithiophene-based polymer with good self organization behavior as well as favorable morphology evolution of its blend films with PC(71)BM under improved processing conditions. Charge carrier transport behavior of blend films was characterized by space charge limited current method. Evolved blend film morphology by controlling blend composition and additive content gradually reaches an optimized state, featured with nanoscale fibrilla polymer phase in moderate size and balanced mobility ratio close to 1:1 for hole and electron. This optimized morphology toward more balanced charge carrier transport accounts for the best power conversion efficiency of 3.2%, measured under simulated AM 1.5 solar irradiation 100 mW/cm(2), through enhancing short circuit current and reducing geminate recombination loss.
KeywordPolymer Solar Cell Morphology Charge Transport Conjugated Polymer Additive Phase Separation
DOI10.1021/am200842y
Indexed BySCI
Language英语
WOS IDWOS:000295236900060
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72230
Collection中国科学院化学研究所
Corresponding AuthorLi, Yongfang
Affiliation1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Key Lab Organ Solids, Inst Chem, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Fan, Haijun,Zhang, Maojie,Guo, Xia,et al. Evolved Phase Separation toward Balanced Charge Transport and High Efficiency in Polymer Solar Cells[J]. ACS APPLIED MATERIALS & INTERFACES,2011,3(9):3646-3653.
APA Fan, Haijun,Zhang, Maojie,Guo, Xia,Li, Yongfang,&Zhan, Xiaowei.(2011).Evolved Phase Separation toward Balanced Charge Transport and High Efficiency in Polymer Solar Cells.ACS APPLIED MATERIALS & INTERFACES,3(9),3646-3653.
MLA Fan, Haijun,et al."Evolved Phase Separation toward Balanced Charge Transport and High Efficiency in Polymer Solar Cells".ACS APPLIED MATERIALS & INTERFACES 3.9(2011):3646-3653.
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