Yongping Fu

Graduate Student, Materials Chemistry
Department of Chemistry
University of Wisconsin-Madison

yfu@chem.wisc.edu

Biographical Sketch

B.S. Peking University, Chemistry, 2008-2012

Ph.D. University of Wisconsin-Madison, 2013-Present

Research

My research is focused on the metal halide perovskite materials and their nanostructures for solar and optoelectronic applications.

The remarkable performance of lead halide perovskites in solar cells can be attributed to the long carrier lifetimes and low non-radiative recombination rates, the same physical properties that are ideal for semiconductor lasers. We first report new insights on the crystal growth of the perovskite nanomaterials and the solution growth of single-crystal nanowires, nanorods, and nanoplates of methylammonium lead halide perovskites and other cation- and/or anion-substituted perovskite alloys via a dissolution-recrystallization pathway from lead precursor films coated on substrates. In collaboration with XYZ group at Columbia University, we show room temperature and wavelength tunable lasing from single-crystal methylammonium lead halide perovskite nanowires with very low lasing thresholds (~ 102 nJ/cm2) and high quality factors (Q ~ 3600). Kinetic analysis based on time-resolved photoluminescence reveals little charge carrier trapping in these single crystal nanowires and gives estimated lasing quantum yields approaching 100%. Furthermore, we develop the growth of single-crystal nanowire of formamidinium lead halide perovskites and their stabilized alloys with methylammonium lead halide perovskites. The nanowire lasers of formamidinium lead halide perovskites show much enhanced photostability and display durable lasing under ~6×108 shots of sustained illumination of 402 nm pulsed laser excitation (150 fs, 250 kHz) at room temperature. Such lasing performance, coupled with facile solution phase growth of single crystal nanowires and broad tunability of emission color from 490 nm to 824 nm using different stoichiometry, makes lead halide perovskites ideal materials for the development of nano-photonics and optoelectronic devices, in parallel with the rapid development in photovoltaic technology from the same materials.

Publications

17) Xuelu Hu, Hong Zhou, Zhenyu Jiang, Xiao Wang , Shuangping Yuan, Jianyue Lan, Yongping Fu , Xuehong Zhang, Weihao Zheng, Xiaoxia Wang, Xiaoli Zhu, Lei Liao, Gengzhao Xu, Song Jin, and Anlian Pan, Direct Vapor Growth of Perovskite CsPbBr3 Nanoplate Electroluminescence Devices, ACS Nano, (2017), DOI: 10.1021/acsnano.7b03660

16) Yongping Fu, Morgan T. Rea, Jie Chen, Darien Morrow, Matthew P. Hautzinger, Yuzhou Zhao, Dongxu Pan, Lydia H. Manger, John C. Wright, Randall H. Goldsmith, and Song Jin, Selective Stabilization and Photophysical Properties of Metastable Perovskite Polymorphs of CsPbI3 in Thin Films, Chem. Mater.,(2017), DOI: 10.1021/acs.chemmater.7b02948

15) Jie Chen, Darien Morrow, Yongping Fu, Weihao Zheng, Yuzhou Zhao, Lianna Dang, Matthew John Stolt, Daniel D. Kohler, Xiaoxia Wang, Kyle J. Czech, Matthew P. Hautzinger, Shaohua Shen, Liejin Guo, Anlian Pan, John C. Wright, and Song Jin, Single-Crystal Thin Films of Cesium Lead Bromide Perovskite Epitaxially Grown on Metal Oxide Perovskite (SrTiO3), J. Am. Chem. Soc.,(2017), DOI: 10.1021/jacs.7b07506

14) Yongping Fu, Tao Wu, Jue Wang, Jianyuan Zhai, Melinda J. Shearer, Yuzhou Zhao, Robert J Hamers, Erjun Kan, Kaiming Deng, Xiaoyang Zhu, and Song Jin, Stabilization of the Metastable Lead Iodide Perovskite Phase via Surface Functionalization, Nano Lett.,(2017), DOI: 10.1021/acs.nanolett.7b01500

13) Jie Chen, Yongping Fu, Leith Samad, Lianna Dang, Yuzhou Zhao, Shaohua Shen, Liejin Guo, and Song Jin, Vapor-Phase Epitaxial Growth of Aligned Nanowire Networks of Cesium Lead Halide Perovskites (CsPbX3, X = Cl, Br, I), Nano Lett.,(2016), DOI: 10.1021/acs.nanolett.6b04450

12) Lydia H. Manger, Matthew B. Rowley, Yongping Fu, Alexander K. Foote, Morgan T. Rea, Sharla L Wood, Song Jin, John C. Wright, and Randall H. Goldsmith, Global Analysis of Perovskite Photophysics Reveals Importance of Geminate Pathways, J. Phys. Chem. C, (2016), DOI: 10.1021/acs.jpcc.6b11547

11) Dewei Ma, Yongping Fu, Lianna Dang, Jianyuan Zhai, Ilia A. Guzei, and Song Jin, Singe-crystal microplates of two-dimensional organic-inorganic lead halide layered perovskites for optoelectronics, Nano Research, (2016), DOI: 10.1007/s12274-016-1401-6

10) Jun Dai, Yongping Fu, Lydia H. Manger, Morgan T. Rea, Leekyoung Hwang, Randall H. Goldsmith, and Song Jin, Carrier Decay Properties of Mixed Cation Formamidinium-Methylammonium Lead Iodide Perovskite [HC(NH2)2]1-x[CH3NH3]xPbI3 Nanorods, J. Phys. Chem. Lett., (2016), DOI: 10.1021/acs.jpclett.6b01958

9) Rui Xiao, Yasen Hou, Yongping Fu, Xingyue Peng, Qi Wang, Eliovardo Gonzalez, Song Jin, and Dong Yu, Photocurrent Mapping in Single-Crystal Methylammonium Lead Iodide Perovskite Nanostructures, Nano Lett, (2016), DOI: 10.1021/acs.nanolett.6b03782

8) Haiming Zhu, M. Tuan Trinh, Jue Wang, Yongping Fu, Prakriti P. Joshi, Kiyoshi Miyata, Song Jin, X.-Y. Zhu, Organic Cations Might Not Be Essential to the Remarkable Properties of Band Edge Carriers in Lead Halide Perovskites, Advanced Materials, (2016), DOI: 10.1002/adma.201603072

7) Haiming Zhu, Kiyoshi Miyata, Yongping Fu, Jue Wang, Prakriti P. Joshi, Daniel Niesner, Kristopher W. Williams, Song Jin, Xiaoyang Zhu, Screening in crystalline liquids protects energetic carriers in hybrid perovskites, Science, (2016), Vol.353, Issue 6306, pp.1409-1413, DOI: 10.1126/science.aaf9570

6) Yongping Fu, Haiming Zhu, Constantinos C. Stoumpos, Qi Ding, Jue Wang, Mercouri G. Kanatzidis, Xiaoyang Zhu, and Song Jin, Broad Wavelength Tunable Robust Lasing from Single-Crystal Nanowires of Cesium Lead Halide Perovskites (CsPbX3, X=Cl, Br, I), ACS Nano, Article ASAP, DOI: 10.1021/acsnano.6b03916

5) Dong Liang, Yuelin Peng, Yongping Fu, Melinda J. Shearer, Jingjing Zhang, Jianyuan Zhai, Yi Zhang, Robert J. Hamers, Trisha L. Andrew, and Song Jin, Color-Pure Violet-Light-Emitting Diodes Based on Layered Lead Halide Perovskite Nanoplates, ACS Nano, Article ASAP, DOI: 10.1021/acsnano.6b02683

4) Yongping Fu, Haiming Zhu, Alex W. Schrader, Dong Liang, Qi Ding, Prakriti Joshi, Leekyoung Hwang, X-Y. Zhu, and Song Jin, Nanowire Lasers of Formamidinium Lead Halide Perovskites and Their Stabilized Alloys with Improved Stability, Nano Lett., 2016, 16 (2),pp 1000-1008, DOI: 10.1021/acs.nanolett.5b04053

3) Junqiao Zhuo, Miguel Caban-Acevedo, Hangeng Liang, Leith Samad, Qi Ding, Yongping Fu, Meixian Li, and Song Jin, High-Performance Electrocatalysis for Hydrogen Evolution Reaction Using Se-Doped Pyrite-Phase Nickel Diphosphide Nanostructures, ACS Catal., 2015, 5 (11), pp 6355-6361, DOI: 10.1021/acscatal.5b01657

2) Haiming Zhu, Yongping Fu, Fei Meng, Xiaoxi Wu, Zizhou Gong, Qi Ding, Martin V. Gustafsson, M. Tuan Trinh, Song Jin & X-Y. Zhu, Lead halide perovskite nanowire lasers with low lasing thresholds and high quality factors, Nature Materials, 2015, pp 636-642, DOI: 10.1038/nmat4271

1) Yongping Fu, Fei Meng, Matthew B. Rowley, Blaise J. Thompson, Melinda J. Shearer, Dewei Ma, Robert J Hamers, John C. Wright, and Song Jin, Solution Growth of Single Crystal Methylammonium Lead Halide Perovskite Nanostructures for Optoelectronic and Photovoltaic Applications, J. Am. Chem. Soc, 2015, 137(17), pp 5810-5818, DOI: 10.1021/jacs.5b02651