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http://dx.doi.org/10.13160/ricns.2016.9.4.275

Dynamic Response of Charge Recombination from Post-Annealing Process in Organic Solar Cell Using Intensity Modulated Photovoltage Spectroscopy  

Jeong, Hanbin (Department of Chemistry Education, Chosun University)
Yun, Suk-Jin (Department of Chemistry Education, Chosun University)
Lee, Jae Kwan (Department of Chemistry Education, Chosun University)
Publication Information
Journal of Integrative Natural Science / v.9, no.4, 2016 , pp. 275-280 More about this Journal
Abstract
Intensity modulated photovoltage spectroscopy (IMVS) analysis of organic solar cells (OSCs) with a bulk-heterojunction (BHJ) film composed of P3HT and $PC_{61}BM$ was performed. The dynamic response of charge recombination by the post-annealing approach in $P3HT/PC_{61}BM$ BHJ solar cells characterized by IMVS demonstrated that post-annealing reduced the recombination of electron carriers in the device. The recombination times of $P3HT/PC_{61}BM$ BHJ solar cells post-annealed at room temperature, 80, 120, and $140^{\circ}C$ were 0.009, 0.020, 0.024, and 0.030 ms, respectively, at a short-circuit current of 0.18 mA. The results indicated that the IMVS analysis can be effectively used as powerful.
Keywords
Organic Solar cells; Dynamic Response; Charge Recombination; IMVS;
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