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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Bibliographic Details
Published inIEEE journal of photovoltaics Vol. 8; no. 1; pp. 144 - 150
Main Authors Huang, Yu-Ching, Chou, Cheng-Wei, Lu, De-Han, Chen, Charn-Ying, Tsao, Cheng-Si
Format Journal Article
LanguageEnglish
Published IEEE 01.01.2018
Subjects
Anodes
Indium tin oxide
Module
organic photovoltaic (OPV)
Photovoltaic systems
plasma modification
Plasmas
semitransparent
spray coating
Zinc oxide
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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%.
ISSN:2156-3381
2156-3403
DOI:10.1109/JPHOTOV.2017.2764143