Enhanced performance in organic photovoltaic devices with a KMnO_4 solution treated indium tin oxide

• 作 者: 杨倩倩 赵谡玲 徐征 张福俊 闫光 孔超 樊星 张妍斐 徐叙瑢
• 机 构: Key Laboratory of Luminescence and Optical Information(Beijing Jiaotong University),Ministry of Educ
• 出 处: Chinese Physics B
• 发表日期: 2012年12期
• 关键词: anode photovoltaic indium attributed ozone butyric PEDOT collection oxygenation

The properties of poly(3-hexylthiophene):(6,6)-phenyl C_(61) butyric acid methyl ester(P3HT:PCBM) organic photovoltaic devices(OPVs) with an indium tin oxide(ITO) anode treated by a KMnO_4 solution are investigated.The optimized KMnO_4 solution has a concentration of 50 mg/L,and ITO is treated for 15 min.The modification of ITO anode results in an enhancement of the power conversion efficiency(PCE) of the device,which is responsible for the increase of the photocurrent.The performance enhancement is attributed to the work function modification of the ITO substrate through the strong oxygenation of KMnO_4,and then the charge collection efficiency is improved.

The properties of poly (3-hexylthiophene) :( 6,6) -phenyl C 61 butyric acid methyl ester (P3HT: PCBM) organic photovoltaic devices (OPVs) with an indium tin oxide (ITO) anode treated by a KMnO_4 solution is investigated. The optimized KMnO_4 solution has a concentration of 50 mg / L, and ITO is treated for 15 min. The modification of ITO anode results in an enhancement of the power conversion efficiency (PCE) of the device, which is responsible for the increase of the photocurrent.The performance enhancement is attributed to the work function modification of the ITO substrate through the strong oxygenation of KMnO_4, and then the charge collection efficiency is improved.