Study on effect of different HTL and ETL materials on the perovskite solar cell performance with TCAD simulator

Abstract

Perovskite solar cell (PSC) has gained lots of attention in the scientific community because of achieving high efficiency in a short period of time. The basic structure of PSC is the active layer sandwiched between the electron transport layer (ETL) and hole transport layer (HTL). Overall device performance depends on the materials of ETL and HTL. This research studied the effect of different ETL and HTL materials and the variation of active layer thickness on the PSC performance with the Sentaurus TCAD simulator. For HTL and ETL, two types of materials were used: organic and inorganic. Organic HTL material was spiro-OMeTAD, inorganic HTL material was NiOx, Organic ETL was PCBM, and inorganic ETL was SnO2. It was observed that inorganic ETL and organic HTL showed the best result for the specific active layer thickness, and the best result was PCE of 21.61%, Voc of 1.23 V, Jsc of 19.31 mA/cm2 and FF of 90%.