In‐Plane Alignment in Organic Solar Cells to Probe the Morphological Dependence of Charge Recombination
作者: Omar AwartaniMichael W. KudenovR. Joseph KlineBrendan T. O'Connor
作者单位: 1Department of Mechanical and Aerospace Engineering North Carolina State University Raleigh NC 27695 USA
2 Department of Electrical and Computer Engineering North Carolina State University Raleigh NC 27695 USA
3 Materials Science and Engineering Division National Institute of Standards and Technology Gaithersburg MD 20899 USA
刊名: Advanced Functional Materials, 2015, Vol.25 (8), pp.1296-1303
来源数据库: Wiley Journal
DOI: 10.1002/adfm.201403377
关键词: organic electronicspolarized lightpolymer aggregatesquantum efficiencysolar cells
原始语种摘要: Bulk heterojunction (BHJ) organic solar cells are fabricated with the polymer semiconductor aligned in the plane of the film to probe charge recombination losses associated with aggregates characterized by varying degrees of local order. 100% uniaxial strain is applied on ductile poly(3‐hexylthiophene):phenyl‐C61‐butyric acid methyl ester (P3HT:PCBM) BHJ films and characterize the resulting morphology with ultraviolet‐visible absorption spectroscopy and grazing incidence X‐ray diffraction. It is found that the strained films result in strong alignment of the highly ordered polymer aggregates. Polymer aggregates with lower order and amorphous regions also align but with a much broader orientation distribution. The solar cells are then tested under linearly polarized light where the light...
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关键词翻译
关键词翻译
  • In 
  • heterojunction 异质结
  • light 
  • Probe 灭草定
  • result 成果
  • semiconductor 半导体
  • fabricated 制造
  • quantum 量子
  • ordered 有序的
  • charge 电荷