Research Projects

In concern to the recent developments in the quest to improve the current state of the art of perovskite solar cells, through this project the focus will need to be paid upon the efforts on increase in open-circuit voltage by means of improve the charge-selective contacts, diffusion length and charge carrier lifetimes in perovskites via processes such as ion tailoring by means of synthesis technique. The issues that hindered the efficiency is mainly due to increase the number of electron-hole recombination and also decrease in diffusion length within the layers. The recombination also can produce within the interface of donor and acceptor layer. To get understanding about the possible efficient transport of excitons by reducing the recombination the energy quenching test could be a phenomenological aspect. Till date there is no such report or experimental deeds that explore the idea of resonance energy quenching phenomena which could be a possible way to ensure the probable happening of recombination within effective layers of perovskite base solar cells. This project will be the major initiative to short out the issues and minimize them by taking experimental ingenuity on charge transfer mechanism with the help of resonance energy quenching phenomena. In this proposal, CH3NH3SnI3-xClx perovskite structured materials (for various state value of x: 0<=3) are opted as acceptor for its beauty of tuneable band gap, conductivity and its interesting optical behaviour. As promising donor material P3HT is opted for execution. The investigations on possible energy quenching between donor and acceptor are not investigated precisely well and of course the impact of energy resonated excitons on production of open circuit voltage as well as on quantum efficiency are remain unexplored in earlier reports. Since depending upon the stoichiometric ratio of elements in perovskite structure the HOMO-LUMO position as well as the band gap of material could be tuneable so there are a plenty of scopes to optimize the carrier transport mechanism, that could result on various parameters of solar cell. This is the main idea that will be implemented throughout this project work. The whole proposal is challenging one still there are some mechanical aspects that will be explored in obvious manner.