【直播】国际交流合作系列会议之--新能源材料专题(七)

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活动名称

国际交流合作系列会议之--新能源材料专题(七)

活动时间

2022年5月26日（周四）14:30

主办方

西安建筑科技大学

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近年来，国际学术会议日益成为人才培养、学术交流、科学研究、技术创新、合作交流的重要平台。“国际交流合作系列会议之新能源材料专题”旨在举办专业性强、学术价值高、学科领域广的国际学术会议。国际交流合作系列会议依托西安建筑科技大学国际交流合作处/港澳台办公室的引智基地项目为依托，由西安建筑科技大学云斯宁教授主持。会议邀请不同领域的专家学者进行学术交流，促进新能源领域的相关学科发展，为开展深入而富有实效的学术交流合作提供有力支持，为相关领域的国际化人才培养提供更多的交流途径和平台。

Invited Speaker 1:

Managing Editor, Whitney Xu, OAE Publishing Inc., Energy Materials

Title: Introduction of a New Journal--Energy Materials

Time: 2022.05.26, Thursday afternoon; PM 2:30-2:35 (Beijing Time)

Invited Speaker 2:

Prof. Qingbo Meng, Institute of Physics, CAS, China

Title: Prospects of Perovskite Solar Cells

Time: PM 2:35-3:35 (Beijing Time); 40-50 mins+ 10 mins discussion.

报告摘要：钙钛矿太阳能电池因其优异的光电转换性能和可溶液化制备而受到科学研究和产业领域的广泛关注。目前钙钛矿太阳能电池光电转换效率已经达到25.7%，与晶硅电池相当。高效率和低成本优势成为钙钛矿太阳能电池商业化的重要推动力。稳定性和成本是钙钛矿电池商业化过程中的重要因素。金属背电极材料是影响电池稳定性的重要因素，且在电池材料成本中有很大的占比。因此发展用于更稳定钙钛矿电池的低成本电极材料及其制备技术具有重要意义。基于此，中国科学院物理研究所团队一直致力于开发基于低温工艺的碳电极材料和电极制备技术。该电极技术和制备过程具有能耗低(低温非真空)、可柔性化、可并行生产、耗时短、设备投资低等技术优势，具有很好的发展前景。基于低温碳电极钙钛矿电池具有光电转换效率高、稳定性好、环保性和可回收性强等优势。目前我们已经在低温碳电极杂化钙钛矿电池中取得了超过24.1%的效率，认证效率达到22.4%；全无机钙钛矿CsPbI3电池效率达到21.6%,碳电极全无机钙钛矿电池效率超过20%。上述电池性能均处于国际领先水平。我们已经成功开发大面积碳薄膜制备技术，并应用于钙钛矿电池模块的制备，目前基于金属电极杂化电池模块效率达到22%，碳电极钙钛矿电池模块效率也接近20%。这些技术积累将有效推动低成本稳定的大面积钙钛矿太阳能电池的产业化进程。

Invited Speaker 3:

Prof. Mingdeng Wei, Fuzhou University, China;

Title: Interfacial Engineering of Thin Film Solar Cells and Its Effects on the Photovoltaic Properties of Devices

Time: PM 3:35-4:35 (Beijing Time); 40-50 mins+ 10 mins discussion.

报告摘要：To increase the photovoltaic properties of dye-sensitized solar cells (DSCs) and perovskite solar cells (PSCs), the decrease of charge recombination at interfaces is one of key factors. For DSCs, metal organic framework (MOF) first introduced to coat the surface of TiO2 electrode for the first time, and a linear relationship between the thickness of MOF coating layer and the Voc was found, and the value of Voc was increased by 55 and 66 mV for the dye N719 and D131, respectively, this is due to the retarded interfacial charge recombination. For PSCs, MOF material was used as an interfacial layer between the electron transport layer and perovskite, and the perovskite crystallinity and grain sizes have been increased, resulted in obvious enhancement of the photovoltaic performance of the PSCs. These results illustrate that the interface played an important role which can efficiently suppress the recombination of photo-generated carriers and improve charge extraction. On the other hand, D-A-p-A organic dye has also been utilized to passivate the surface defects of perovskite, resulted in the reduction of trap states and suppression of the non-radiative recombination in perovskite films. Therefore, these works provide a useful strategy of interfacial engineering for increasing the photovoltaic properties of DSCs and PSCs.

Invited Speaker 4:

Prof. Hongwei Han, Huazhong University of Science and Technology, China

Title: The Progress of Printable Mesoscopic Perovskite Solar Cells

Time: PM 4:35-5:35 (Beijing Time); 40-50 mins+ 10 mins discussion.

报告摘要：Mesoscopic solar cells are different from other types of photovoltaic devices due to their special structural design. Based on the mesoporous structure, dye-sensitized solar cells have been studied for more than 30 years. Metal halide perovskite materials were introduced into this structure for the first time in 2009, which led to the emergence of perovskite solar cells and was popular. The printable mesoscopic perovskite solar cells were developed with triple mesoscopic layers and printing technology in our group in 2013. The device presents no obvious decay within over 13000h light soaking and high efficiency of more than 20% with lab size and certified 14.9% with 2200cm2. A 110 m2 mesoscopic perovskite solar system was exhibited.The strengthened and localized mechanism make PSC meet stability standards of IEC 61215 qualification tests, including ultraviolet preconditioning test (60oC, 50 kWhm-2), thermal cycling test (-40~85oC, 200 cycles), damp heat test (85oC/85%RH, 1100h) and maximum power point tracking light soaking test (55±5oC, 1000h), which was confirmed by In-situ GIWAXS, In-situ PL mapping and the behaviors of perovskite under external fields. These results offer a promising prospect for its commercial application.

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编辑：黄琦

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