A Step Towards Moisture Stable Photovoltaics

Three-dimensional halide perovskites have dramatically increased the solar-cell efficiencies due to their exceptional optical and electrical properties. However, instability due to moisture is challenging towards commercialization. Two-dimensional layered (having long carbon chain containing spacers) perovskites show better moisture resistance properties, but these perovskites demonstrate low device performance. The research team led by Dr. Satyajit Gupta at the Department. of Chemistry, IIT Bhilai have shown the use of ‘reduced graphene oxide (rGO) based conductive carbon nanostructures can be used as an interlayer to decrease the charge transfer resistance and thus improves the photocurrent density and efficiencies of the cells made out of ‘molecularly engineered’ layered halide perovskites with thiophene ethyl amine as spacer.

The report is published in ACS Applied Energy Materials. The article can be accessed through the following link: https://pubs.acs.org/doi/abs/10.1021/acsaem.2c02462

Message From Director

I am pleased to extend my greetings to students and their parents as well as colleagues near and far. IIT Bhilai was established on 7 August 2016. We are located in Chhattisgarh, the rice bowl of India, in a state rich in natural resources as well as cultural memory and heritage. Read More


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