According to Reuters in recent days, Xi'an Jiaotong University, Professor Wu Chao telecommunications new team using spin-coating deposition way to take bilateral interface-control method for a battery device structure, while achieving a high-quality two-dimensional - three-dimensional non-lead-tin-based heterojunction Perovskite film and high efficiency, high stability battery device, the device's photoelectric conversion efficiency is as high as 6.98%, which is among the highest efficiency of international tin-based non-lead perovskite solar cells. Methylamine lead iodine is an ideal light absorbing material because of its low cost, easy solution processing, high light absorption coefficient, photo-generated carrier bipolar transmission, long-range carrier transport, low defect density, and suitable optical band gap. . The material faces shortcomings such as poor stability and non-environmental friendliness, which has somewhat delayed the process of its large-scale commercial application and expansion into more application areas. The development of environmentally friendly and stable non-lead perovskite materials and the application of photovoltaic devices are new research hotspots at home and abroad. In recent years, the team of Professor Wu Chaoxin of Xi'an Jiaotong University has continued to conduct in-depth research on environmentally-friendly non-lead perovskite solar cells, and has achieved a series of important results. Today, the photoelectric conversion efficiency of 6.98% of tin-based perovskite solar cells is obtained, which is environmentally friendly. The application of lead perovskite solar cells has made an important contribution. The energy conversion efficiency of solar cell devices based on methylamine lead iodine perovskite exceeds 22% in just 6 years, causing a “perovskite boom†in academia and industry, becoming the leader in the third generation of new solar cells. . Editor: Yan Zhixiang Variable Frequency Drive,Variable Frequency Drive For Motor,Three Phase 400V Ac Drive,Variable Frequency Drive For Lift Zhejiang Kaimin Electric Co., Ltd. , https://www.ckmineinverter.com