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|Title:||Efficient multilayer organic solar cells using the optical interference peak||Authors:||Zhang, 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. https://doi.org/10.1063/1.2962986||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||URI:||http://scholarbank.nus.edu.sg/handle/10635/50911||ISSN:||00036951||DOI:||10.1063/1.2962986|
|Appears in Collections:||Staff Publications|
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