Enhancing the efficiency of inverted organic solar cells by using the exciton blocking layers

In this study, inverted organic solar cells (IOSCs) have been fabricated and characterized. Device's structure consists of the blend of poly(3-hexythiophene)(P3HT) and [6,6]-phenyl C61-butyric acid methyl ester(PCBM) as an active layer and a solution process of ZnO and V 2 O 5 as a hole blockin...

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Bibliographic Details
Published in2013 International Symposium on Next-Generation Electronics pp. 441 - 442
Main Authors Kai-Yuen Lam, Hui-Hsuan Lee, Shui-Hsiang Su, Wen-Kai Lin, Che-Chun Liu, Zhi-Ren Wang, Yokoyama, M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.02.2013
Subjects
Annealing
Charge carrier processes
Indium tin oxide
Performance evaluation
Photovoltaic cells
Zinc oxide
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Summary:In this study, inverted organic solar cells (IOSCs) have been fabricated and characterized. Device's structure consists of the blend of poly(3-hexythiophene)(P3HT) and [6,6]-phenyl C61-butyric acid methyl ester(PCBM) as an active layer and a solution process of ZnO and V 2 O 5 as a hole blocking layer (HBL) and electron blocking layer (EBL), respectively. The blocking layer possesses high charge mobility and wide band gap. The wide band gap can effectively suppress the diffusion of electron and hole separating from exciton to the electrodes, reducing the combined effect. Experimental results reveal that ZnO annealed in high temperature to procure nano-ridge can effectively enhance electrons to transport from active layer to the cathode.
ISBN:1467330361
9781467330367
DOI:10.1109/ISNE.2013.6512395