Printed organic photovoltaic device with buffer layers

Fully printed organic photovoltaic (OPV) devices were fabricated using slot die coating, electro-spraying, and screen printing technologies. A fundamental study was performed to fabricate the organic photovoltaic device with the functional layers. In order to minimize the decrease of the device perf...

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Bibliographic Details
Published in:Macromolecular research 2015, 23(11), , pp.1068-1072
Main Authors: Choi, Yong Rak, Kim, Joobin, Park, Sangmin, Yu, Jae-Woong
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Nanochemistry
Nanotechnology
Physical Chemistry
Polymer Sciences
Soft and Granular Matter
고분자공학
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Summary:Fully printed organic photovoltaic (OPV) devices were fabricated using slot die coating, electro-spraying, and screen printing technologies. A fundamental study was performed to fabricate the organic photovoltaic device with the functional layers. In order to minimize the decrease of the device performance caused by printing, electron and hole extraction buffers were inserted. The insertion of the ethoxylated polyethylenimine electron extraction buffer layer between the cesium-doped TiO2 layer and active layer helped electron extraction by reducing the interlayer resistance. The insertion of a photo-curable hole extraction buffer layer between the active layer and metal electrode helped to reduce the leakage current. The series resistance decreased and the shunt resistance increased with the insertion of this hole extraction layer. The electron and hole extraction buffer layers improved the device performance of the printed OPV device.
ISSN:1598-5032
2092-7673
DOI:10.1007/s13233-015-3142-x