PEROVSKITE BASED SOLAR CELLS- AN INTRODUCTION

Abstract

Energy conversion has been one of the main themes for researchers for the past few decades. Among the various options, employing solar energy and convert it into electricity has been facinating and the device is called soolar cells or photovootaic devices. This device has seen many developments in the last fifty years starting from silicon based solar cells []]. For various reasons. altermate materials have been considered from cost and processing points of view and in the last decade peroskite based materials (both organic, inorganic and hybrid) have shown promise to give efficiencies almost comparable to silicon based solar cells, but the stability and other aspects have to be improved. The developments in this field is enormous and it is time the current situation is assessed well for possible exploitation of this device in future.In this brief presentation, it has been attempted to trace the history of this remarkable development and also to examine the challenges that have to be considered like lead poison, stability of the materials under various atmospheres and other aspects. It is hoped that thiw write-up will be useful for those who wish to acquaint himself to this field.