Functional Materials and Device Laboratory (f-MDL)
Arise! Awake! and stop not until the goal is reached
~swami vivekananda
Top view image of perovskite solar cell with different active area
Dr. Singh's group, Functional Materials and Devices Laboratory (f-MDL) investigates new materials synthesis and material compositions for the applications in energy generation. In this area the main focus of our research is design and development of organic-inorganic metal halide perovskite materials for solar energy. The group aims to improve the understanding of the optoelectronic mechanisms responsible for the degradation of various components inside the perovskite device.
Current research areas :
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Perovskite solar cell stability and efficiency
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Solar driven water splitting
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Development of printable functional nanostructure materials for energy applications
Recent Updates
Paper in Nano Energy Accepted(06/2019)
Role of ionic liquids in organic-inorganic metal halide perovskite solar cells efficiency and stability
Subrata Ghosh and Trilok Singh
Organic-inorganic metal halide perovskite solar cells (PSCs) are developing in a rapid pace as a potential energy harvesting material. Within a short time span it has achieved the power conversion efficiency comparable to the similar mature technologies (crystalline Silicon, CIGS, CdTe etc.) available in the market. Unfortunately, PSCs have stability issues in real time operating conditions and posed a hurdle towards its commercialization. Various modifications and engineering aspects have been applied so far to cope up with this issue and among these players, ionic liquids (ILs) have certainly grabbed the attention of the researchers recently. ILs have unique and versatile properties like high ionic conductivity, thermal and electrochemical stability; which are suitable for application in PSCs. This review describes the fundamental, present status and future prospectus of role of ILs in perovskite solar cells focussing on the stability and efficiency. Strategies regarding surface/interface modifications, engineering of interfaces and interaction of ions (cations/anions) from ILs with various perovskite precursors are discussed.
