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

Abstract

Intensity modulated photovoltage spectroscopy (IMVS) analysis of organic solar cells (OSCs) with a bulk-heterojunction (BHJ) film composed of P3HT and $PC_{61}BM$ 수식 이미지 was performed. The dynamic response of charge recombination by the post-annealing approach in $P3HT/PC_{61}BM$ 수식 이미지 BHJ solar cells characterized by IMVS demonstrated that post-annealing reduced the recombination of electron carriers in the device. The recombination times of $P3HT/PC_{61}BM$ 수식 이미지 BHJ solar cells post-annealed at room temperature, 80, 120, and $140^{\circ}C$ 수식 이미지 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.