The Sun is source of abundant energy. We are getting large amount of energy from the Sun out of which only a small portion is utilized. Sunlight reaching to Earth’s surface has potential to fulfill all our ever increasing energy demands. Solar Photovoltaic technology deals with conversion of incident sunlight energy into electrical energy. Solar cells fabricated from Silicon aie the first generation solar cells. It was studied that more improvement is needed for large absorption of incident sunlight and increase in efficiency of solar cells. Thin film technology and amorphous Silicon solar cells were further developed to meet these conditions. In this review, we have studied a progressive advancement in Solar cell technology from first generation solar cells to Dye sensitized solar cells, Quantum dot solar cells and some recent technologies. This article also discuss about future trends of these different generation solar cell technologies and their scope to establish Solar cell technology.
The X-ray imaging is a powerful tool used in medical diagnostics, non-destructive material inspection, security checks, nuclear plants and research field. Perovskites is considered as a promising candidate for X-ray detection owning to its remarkably improved sensitivity, low-cost synthesis, detection limit, response time and better special resolution. In this review paper the challenges and future scope of the reported work in the lead based and lead free single and polycrystalline perovskites is studied. Most of the reported results are based on single pixel detection. Hence, it is proposed that an interdisciplinary collaborative work will only facilitate its practical implementation in state-of-the-art X-ray imaging technology.
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