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Single crystal perovskite solar cells (单晶钙钛矿太阳能电池)

Speaker:Prof.Qingfeng Dong ,Ph.D.adviser of Jilin University

Time and Date: 13:30-15:00pm, October. 16, 2017

Place: Meeting Room 138, Physics Building, Handan Campus

Contact: Rongjun Zhang(65643559)

 

 

Abstract

Demonstrated optoelectronic applications of organolead trihalide perovskites include high-efficiency photovoltaic cells, lasers, light-emitting diodes, and high-gain photodetectors, but the understanding of their fundamental properties, such as carrier diffusion length, has lagged behind. Determining the limit of carrier diffusion length requires larger MAPbI3 single crystals (MSCs). We grew millimeter-sized MSCs using a low-temperature solution approach and characterized their fundamental electronic properties. We show co-planar structure single crystal perovskite solar cell.

 

 

 

 

Biography

董庆锋博士,吉林大学化学学院学士及博士学位,其后在美国内布拉斯加大学林肯分校Jinsong Huang教授研究组从事博士后研究,研究方向为钙钛矿太阳能电池。现工作单位吉林大学超分子结构与材料国家重点实验室,博士生导师。近年表论文60余篇,引用4300余次,以第一作者及通讯作者在包括Science、Science Advance, Nature Communications,Advanced Materials,Energy & Environmental Science 等学术期刊发表文章十余篇。另有多篇重要合作文章发表在Nature Materials, Nature Photonics, Nature Nanotechnology等期刊。当前研究兴趣为开发高性能、低成本的光电转换材料及器件。

 

 

 

 

Representative Papers

1. Qingfeng Dong#, Yanjun Fang#, Yuchuan Shao#, Jinsong Huang* et al., Electron-hole diffusion lengths >175 μm in solution grown CH3NH3PbI3 single crystals,. Science 347, 967-970 (2015).

2. Evgheni Strelcov#, Qingfeng Dong#, Alexei Gruveman*, Jinsong Huang*, and Andrea Centrone et al., Ferroelasticity Revealed in CH3NH3PbI3 Perovskites, Science Advances, 3, 4, e1602165 (2017).

3. Yehao Deng, Qingfeng Dong*, Jinsong Huang* et al., Scalable fabrication of efficient organolead trihalide perovskite solar cells with doctor-bladed active layers, Energy & Environmental Science; (5), 1544-1550 (2015).

4. Zhengguo Xiao, Qingfeng Dong*, Jinsong Huang*et al., Unraveling the hidden function of a stabilizer in a precursor in improving hybrid perovskite film morphology for high efficiency solar cells, Energy & Environmental Science, 9, 867-872 (2016).

5. Qingfeng Dong, Jinsong Huang* et al., Abnormal Crystal Growth in CH3NH3PbI3-xClx Using a Multi-cycle Solution Coating Process, Energy & Environmental Science, 8, 2464-2470 (2015).

6. Qingfeng Dong, Jinsong Huang*et al., Lateral-Structure Single-Crystal Hybrid Perovskite Solar Cells Through Piezoelectric Poling, Advanced Materials, 28, 2816–2821 (2016).

7. Yang Bai#, Qingfeng Dong#, Jinsong Huang*et al., Enhancing Stability and Efficiency of Perovskite Solar Cells with Crosslinkable Silane Functionalized and Doped Fullerene, Nature communications, 7,12806(2016).

 

 

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