All-Spray-Coated Inverted Semitransparent Organic Solar Cells and Modules
The aim of this study is to demonstrate a fabrication process of all-sprayed inverted organic photovoltaics. We sprayed the blend of poly(3-hexylthiophene-2,5-diyl) and [6, 6] phenyl-C 61 -butyric acid methyl ester as an active layer and zinc oxide prepared by a sol-gel process as an electron transp...
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Published in | IEEE journal of photovoltaics Vol. 8; no. 1; pp. 144 - 150 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
IEEE
01.01.2018
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Subjects | |
Online Access | Get full text |
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Summary: | The aim of this study is to demonstrate a fabrication process of all-sprayed inverted organic photovoltaics. We sprayed the blend of poly(3-hexylthiophene-2,5-diyl) and [6, 6] phenyl-C 61 -butyric acid methyl ester as an active layer and zinc oxide prepared by a sol-gel process as an electron transport layer. The highly conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) as a semitransparent anode and alternative to Ag is sequentially spray-coated. We further utilize nitrogen (N 2 ) plasma modification on the active layer for improving the compatibility between two layers in this work. With a combination of tuning the subsequent thermal treatment, the all-sprayed devices with good performance could be obtained. The highest power conversion efficiency (PCE) of 2.90% is achieved by optimizing the N 2 plasma and thermal treatment, and the stability test is performed. Moreover, we up-scaled the all-spray-coating process to a module with three cells connected in series, and the PCE of the module is achieved to 2.44%. |
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ISSN: | 2156-3381 2156-3403 |
DOI: | 10.1109/JPHOTOV.2017.2764143 |