Behaviour Analysis of Multilayer and Bulk Heterojunction Organic Solar Cell With Aluminium-Doped Zinc Oxide Anode Layer

Abstract

The production of electricity by harnessing the energy of the sun is done at almost no pollution and at very low cost. Due to the economical and ecological advantages, organic solar cells are evolved. This paper presents the affect on power conversion efficiency (PCE) by adding an active layer in a bulk heterojunction (BHJ) organic solar cell along-with one thin intermediate layer. Firstly, the efficiency is demonstrated by single layer BHJ with P3HT:PCBM material as an active layer. Furthermore, one additional active layer of MEH-PPV:PCBM material is added in BHJ with former material, an intermediate layer of organic material hexdecafluoro copper phthalocyanine (F 16 CuPc) is also introduced and the affect on efficiency is studied using Silvaco Atlas TCAD. Also, aluminium-doped-zinc-oxide (AZO) material which is a transparent-conducting-oxide (TCO) is used as anode layer. The Power-Conversion-Efficiency (PCE) of a solar cell depends on short-circuit-current-density (Jsc), open-circuit-voltage (Voc) and fill_factor (FF). The increment of the short circuit current is observed in multilayer in comparison to BHJ. Therefore, PCE is increased from 7.4% to 10.3%. Hence, the addition of active layer in BHJ increases the PCE of organic solar cell or photovoltaic cell (OPV).