Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.2885721
Title: Simple tandem organic photovoltaic cells for improved energy conversion efficiency
Authors: Zhang, C. 
Tong, S.W. 
Jiang, C.
Kang, E.T. 
Chan, D.S.H. 
Zhu, C. 
Issue Date: 2008
Source: Zhang, C., Tong, S.W., Jiang, C., Kang, E.T., Chan, D.S.H., Zhu, C. (2008). Simple tandem organic photovoltaic cells for improved energy conversion efficiency. Applied Physics Letters 92 (8) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2885721
Abstract: We proposed and demonstrated a simple tandem structure of organic photovoltaic (PV) cell for efficient light harvesting. In this device structure, a soluble fullerene derivative of [6,6]-phenyl- C61 -butyric acid methyl ester (PCBM) is employed simultaneously to form a bilayer heterojunction PV subcell with the underlying copper phthalocyanine (CuPc) and a bulk heterojunction PV subcell with blended poly(3-hexylthiophene-2,5-diyl) (P3HT). In comparison with the conventional tandem structure, the omission of the semitransparent intercellular connection layer reduces the complexity of the device and the light loss. The enhanced short circuit current density (JSC =8.63 mA cm2) and power conversion efficiency (PCE) (2.79%) of the tandem structure are nearly the sum of those of the stand-alone cells of CuPc/PCBM (JSC =2.09 mA cm2, PCE=0.43%) and P3HT:PCBM (JSC =6.87 mA cm2, PCE=2.50%). © 2008 American Institute of Physics.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/90147
ISSN: 00036951
DOI: 10.1063/1.2885721
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