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- Seok, Sang Il
- Laboratory for Energy Harvesting Materials and Systems
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Performance improvement of Sb2S3-sensitized solar cell by introducing hole buffer layer in cobalt complex electrolyte
- Author(s)
- Im, Sang Hyuk, Kim, Hi-jung, Rhee, Jae Hui, Lim, Choong-Sun, Seok, Sang Il
- Issued Date
- 2011-08
- Citation
- ENERGY & ENVIRONMENTAL SCIENCE, v.4, no.8, pp.2799 - 2802
- Abstract
- We found that the insertion of the poly-3-hexylthiophene (P3HT) layer into the pristine device results in great improvement of the efficiency, from 2.0% to 3.3% at 1 sun illumination. The improvement was mainly attributed to the improved fill factor, which for the Sb2S3 sensitized solar cell was seriously degraded from 56.0% (at 0.1 sun) to 31.5% (at 1 sun), whereas the fill factor of the Sb2S3/P3HT sensitized solar cell was only moderately degraded, from 59.3% (at 0.1 sun) to 40.4%. The role of P3HT as a hole buffer layer was analyzed by electrochemical impedance spectroscopy (EIS)
- Publisher
- ROYAL SOC CHEMISTRY
- ISSN
- 1754-5692
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