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Highly Efficient Light Harvesters and Organic Hole Transporting Materials in Perovskite Solar Cells
전남중 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.1
One of the challenges of the scientific community working in green energy is to fabricate inexpensive and highly efficient solar cells to convert solar energy, the cleanest and most abundant renewable energy source available on Earth, into usable electrical energy. Recently, inorganic- organic lead halide perovskite solar cells have attracted significant attention due to their advantage such as low cost, light-weight, flexibility and high performance, already surpassing the power conversion efficiency (PCE) of 22.1%. In this presentation, I will talk about the efficient hole transporting materials based on the bifluorene and pyrene core. Furthermore, intermediate phase formation for the extremely uniform and dense perovskites layers will be introduced. Finally, chemical formulation of methylammonium lead iodide (MAPbI3), methylammonium lead bromide (MAPbBr3) and formamidinium lead iodide (FAPbI3) materials for the application to efficient solar cells will be introduced.
Halide Perovskites for X‑ray Detection: The Future of Diagnostic Imaging
전남중,조정민,이정근 한국의학물리학회 2022 의학물리 Vol.33 No.2
X-ray detection has widely been applied in medical diagnostics, security screening, nondestructive testing in the industry, etc. Medical X-ray imaging procedures require digital flat detectors operating with low doses to reduce radiation health risks. Recently, metal halide perovskites (MHPs) have shown great potential in high-performance X-ray detection because of their attractive properties, such as strong X-ray absorption, high mobility–lifetime product, tunable bandgap, low- temperature fabrication, near-unity photoluminescence quantum yields, and fast photoresponse. In this paper, we review and introduce the development status of new perovskite X-ray detectors and imaging, which have emerged as a new promising high-sensitivity X-ray detection technology. We discuss the latest progress and future perspective of MHP-based X-ray detection in medical imaging. Finally, we compare the conventional detection methods with quantum-enhanced detection, pointing out the challenges and perspectives for future research directions toward perovskite-based X-ray applications.