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High Efficiency Flexible Polymer Solar Cells Based on PET Substrates with a Nonannealing Active Layer.

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Title: High Efficiency Flexible Polymer Solar Cells Based on PET Substrates with a Nonannealing Active Layer.
Authors: Kao-Hua Tsai1, Jing-Shun Huang1, Meng-Yueh Liu1, Cha-Hsin Chao1, Chun-Yu Lee1, Shih-Che Hung1, Ching-Fuh Lin1,2 cflin@cc.ee.ntu.edu.tw
Source: Journal of The Electrochemical Society. 2009, Vol. 156 Issue 10, pB1188-B1191. 4p.
Subjects: Solar cells, Polyesters, Substrates (Materials science), Atomic force microscopy, Indium, Tin compounds
Abstract: The inverted bulk-heterojunction solar cell on the polyester (PET) substrate with a nonannealing active layer is investigated. The atomic force microscope images show that the morphology of the nonannealing active layer of the inverted plastic solar cell evolves with time, which improves the performance of the solar cell. Our investigations show that the grain size of the active layer increases with time, resulting in improvements in the fill factor (from 34.8 to 62.8%) and shunt resistance (from 107 to 505 Ω cm2) as well as a reduction in the series resistance (from 4.82 to 0.96 Ω cm2). The easily processed inverted device with a nonannealing active layer on the indium tin oxide-coated PET substrate exhibits a high power conversion efficiency of ∼3.66%. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:The inverted bulk-heterojunction solar cell on the polyester (PET) substrate with a nonannealing active layer is investigated. The atomic force microscope images show that the morphology of the nonannealing active layer of the inverted plastic solar cell evolves with time, which improves the performance of the solar cell. Our investigations show that the grain size of the active layer increases with time, resulting in improvements in the fill factor (from 34.8 to 62.8%) and shunt resistance (from 107 to 505 Ω cm2) as well as a reduction in the series resistance (from 4.82 to 0.96 Ω cm2). The easily processed inverted device with a nonannealing active layer on the indium tin oxide-coated PET substrate exhibits a high power conversion efficiency of ∼3.66%. [ABSTRACT FROM AUTHOR]
ISSN:00134651
DOI:10.1149/1.3184341