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Title: Efficient multilayer organic solar cells using the optical interference peak
Authors: Zhang, C. 
Tong, S.W. 
Jiang, C.
Kang, E.T. 
Chan, D.S.H. 
Zhu, C. 
Issue Date: 2008
Citation: Zhang, C., Tong, S.W., Jiang, C., Kang, E.T., Chan, D.S.H., Zhu, C. (2008). Efficient multilayer organic solar cells using the optical interference peak. Applied Physics Letters 93 (4) : -. ScholarBank@NUS Repository.
Abstract: A multilayer structure of copper phthalocyanine/poly(3-hexylthiophene-2,5- diyl): [6,6]-phenyl- C61 -butyric acid methyl ester (CuPc/P3HT:PCBM) is used to extend the light absorption spectrum covering almost the entire visible spectrum. To maximize the light absorption, the total number of excitons created in the multilayer structure as a function of layer thickness of both CuPc and P3HT:PCBM is simulated by using the optical transfer matrix formalism. The solar cells with a device structure of ITO/PEDOT:PSS/CuPc/P3HT:PCBM/Al are fabricated with different layers thicknesses. The optimized solar cell with a high short circuit current density of 12.54 mA cm2 and power conversion efficiency as high as 4.13% is achieved, owing to the utilization of the second optical interference peak in the multilayer structure for the enhanced light absorption. © 2008 American Institute of Physics.
Source Title: Applied Physics Letters
ISSN: 00036951
DOI: 10.1063/1.2962986
Appears in Collections:Staff Publications

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