Light-emission organic solar cells with Mo03∶Al interfacial layer-preparation and characterizations

• 作者: Xinran LI Yanhui LOU(l Zhaokui WANG
• 来源期刊: 光电子学前沿
• 年，卷（期）: 2021,（4）
• 所属期刊栏目: RESEARCH
• 页码范围: 499-506
• 页数: 8页
• 语种: 英文

摘要

A light-emitting organic solar cell(LE-OSC)with electroluminescence(EL)and photovoltaic(PV)properties is successfully fabricated by connecting the EL and PV units using a MoO3∶Al co-evaporation interfacial layer,which has suitable work function and good transmittance.PV and EL units are fabricated based on poly(3-hexylthiophene)(P3HT)-indene-C60 bisadduct(IC60BA)blends,and4,4'-bis(N-carbazolyl)biphenyl-fac-tris(2-phenylpyridine)iridium(Ir(ppy)3),respectively.The work function and the transmittance of the MoO3∶Al co-evaporation are measured and adjusted by the ultravio-let photoelectron spectroscopy and the optical spectro-photometer to obtain the better bi-functional device performance.The forward-and reverse-biased current density-voltage characteristics in dark and under illumina-tion are evaluated to better understand the operational mechanism of the LE-OSCs.A maximum luminance of 1550 cd/m2 under forward bias and a power conversion efficiency of 0.24％under illumination(100 mW/cm2)are achieved in optimized LE-OSCs.The proposed device structure is expected to provide valuable information in the film conditions for understanding the polymer blends internal conditions and meliorating the film qualities.