Influence of ZnO Nanostructure Morphologies on Perovskite Solar Cell Performance: A Review

Abstract

Zinc oxide (ZnO) has been widely studied over the last decade for its remarkable properties in optoelectronic and photovoltaic devices because of its high electron mobility and excitonic properties, probably the broadest range of nanostructured forms, and their ease and low cost of synthesis by a wide variety of methods. The volume of recent work on ZnO nanostructures and their devices can potentially overshadow significant developments in the field. Therefore, there is a need for a concise description of the most recent advances in the field. In this review, we focus on the effect of ZnO nanostructure morphologies on the performance of ZnO-based solar cells sensitized using methylammonium lead iodide perovskite. We present an exhaustive discussion of the synthesis routes for different ZnO nanostructure morphologies, ways to control the morphology, and the impact of morphology on the photo-conversion efficiency of a given PSC.

Light and bias-induced room temperature negative differential conductance in Ni-doped ZnO/p-Si Schottky photodiodes for quantum optical applications

“…This is done by evaluating the doped bandgap, the surface potentials and substrate compatibilities, and the transparencies of the alloyed őlms, using a wide spectrum of techniques. For semiconductor device applications, a persistent challenge has been to devise methods that achieve p-ZnO consistently, which is generally harder than for n-ZnO [5,1]. Other transparent conductive metal oxides, particularly indium-tin (ITO), though potent, are today less preferred for large-area devices like heterojunction solar cells (HJSC) because of the cost of rare earth elements, or their peculiar processing requirements [6].…”