A MORPHOLOGICAL STUDY OF SOLVOTHERMALLY GROWN SNO2 NANOSTRUCTURES FOR APPLICATION IN PEROVSKITE SOLAR CELLS

Abstract

SnO2 is considered as one of the most effective electron transport materials used in solar cells. It has promising intrinsic properties such as wide bandgap, high electron mobility, high carrier transportation, and chemical stability. The majority of perovskite solar cells (PSCs) based on SnO2 electron transport layers (ETL) is in the form of SnO2 nanoparticles or quantum dots. The PSCs based on other SnO2 nanostructured ETL show a large discrepancy in power conversion efficiency (PCE). One of the reasons is that the preparation of nanostructures is very sensitive to different growth factors, resulting in low reproducibility. Thus, the aim of this work is to empirically investigate the growth parameters of solvothermally grown SnO2 nanorod arrays (NAs).