New architectures for high-performance organic solar cell introducing phosphorescent iridium complex

Hui Lin; Junsheng Yu; Wei Zhang; Shuangling Lou; Yadong Jiang

doi:10.1117/12.831012

21 May 2009 New architectures for high-performance organic solar cell introducing phosphorescent iridium complex

Hui Lin, Junsheng Yu, Wei Zhang, Shuangling Lou, Yadong Jiang

Proceedings Volume 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 728230 (2009) https://doi.org/10.1117/12.831012
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China

Abstract

In this work, We report on highly efficient organic solar cells based on bis[2-(4-tertbutylphenyl) benzothiazolato-N, C²,] iridium (acetylacetonate) [(t-bt)₂Ir(acac)], a material that has been investigated as dopants in organic light-emitting devices (OLEDs). Organic device with structure of indium tin oxide (ITO)/(t-bt)₂Ir(acac):CuPc/C₆₀/BCP/Ag, is fabricated. By doping (t-bt)₂Ir(acac) into standard CuPc/C₆₀ OPV cell, a high J_SC of 8.23 mA/cm², VOC of 0.36 V, and an exceptionally high power conversion efficiency of 1.42% are achieved. The performance improvement is mainly attributed to efficient light absorption by (t-bt)₂Ir(acac) in the range of 380-500 nm, leading to more effective exciton dissociation. Their findings motivate the use of phosphorescent dyes for increasing photon harvesting as well as charge transfer efficiency.

Citation Download Citation

Hui Lin, Junsheng Yu, Wei Zhang, Shuangling Lou, and Yadong Jiang "New architectures for high-performance organic solar cell introducing phosphorescent iridium complex", Proc. SPIE 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 728230 (21 May 2009); https://doi.org/10.1117/12.831012

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