stability of high band gap p3ht : pcbm organic solar cells using tiox interfacial layer
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2014
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Abstract
We fabricated a poly[3-hexylthiophene] (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM) organic photovoltaic cells (OPCs) using TiOx interfacial layer. We performed optimization processes for P3HT : PC61BM with the TiOx layer. We found that a solution based TiOx layer coated at a spin speed of 3000 rpm improved the photon absorption of the active layer. An optimized TiOx layer was also used as the interfacial layer to investigate the stability of P3HT : PC61BM OPC. After 70 days of storage, we observed that the short-circuit current density (JSC) dropped by 16.2%, fill factor (FF) dropped by 10.6%, and power conversion efficiency (PCE) dropped approximately by 25%, while the open-circuit voltage (VOC) remained relatively stable. We found that a solution based TiOx layer synthesized using a sol-gel chemistry method was very effective in protecting the active layer from degradation.
| Reference Key |
foe2014internationalstability
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|---|---|
| Authors | ;Kurniawan Foe;Gon Namkoong;Matthew Samson;Enas M. Younes;Ilho Nam;Tarek M. Abdel-Fattah |
| Journal | construction and building materials |
| Year | 2014 |
| DOI |
10.1155/2014/784724
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| URL | |
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