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Characterization of Organic Thin Film Solar Cells of PCDTBT : PC71BM Prepared by Different Mixing Ratio and Effect of Hole Transport Layer
- Source :
- International Journal of Photoenergy, Vol 2015 (2015)
- Publication Year :
- 2015
- Publisher :
- Hindawi Limited, 2015.
-
Abstract
- The organic thin film solar cells (OTFSCs) have been successfully fabricated using PCDTBT : PC71BM with different mixing ratios (1 : 1 to 1 : 8) and the influence of hole transport layer thickness (PEDOT : PSS). The active layers with different mixing ratios of PCDTBT : PC71BM have been fabricated using o-dichlorobenzene (o-DCB). The surface morphology of the active layers and PEDOT : PSS layer with different thicknesses were characterized by AFM analysis. Here, we report that the OTFSCs with high performance have been optimized with 1 : 4 ratios of PCDTBT : PC71BM. The power conversion efficiency (PCE = 5.17%) of the solar cells was significantly improved by changing thickness of PEDOT : PSS layer. The thickness of the PEDOT : PSS layer was found to be of significant importance; the thickness of the PEDOT : PSS layer at 45 nm (higher spin speed 5000 rpm) shows higher short circuit current density (Jsc) and lower series resistance (Rs) and higher PCE.
- Subjects :
- Renewable energy sources
TJ807-830
Subjects
Details
- Language :
- English
- ISSN :
- 1110662X, 1687529X, and 61002194
- Volume :
- 2015
- Database :
- Directory of Open Access Journals
- Journal :
- International Journal of Photoenergy
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.4b31b61002194d9ba117e01598e0f0b7
- Document Type :
- article
- Full Text :
- https://doi.org/10.1155/2015/687678