彭笑刚 - 浙江大学

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彭笑刚教授博导收藏完善纠错
浙江大学化学系
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个人简介

Xiaogang Peng received his B.S. (1987) and Ph.D. (1992) from Jilin University, P. R. China. His Ph.D. research was about Langmuir-Boldgett films. His Postdoctoral experience followed by a position as Staff Scientist at UC Berkeley with Professor Paul Alivisatos between 1994 and 1999 brought him into the field of colloidal nanocrystals. In 1999, he joined the University of Arkansas as Assistant Professor, and an Associate Professor in 2003, and a Full Professor in 2005 (honored as Scharlau Chair Professor of Chemistry in the same year). In 2009, he joined the Department of Chemistry at Zhejiang University to start a new adventure in an old country.

研究领域

Colloidal nanocrystals are nanometer sized inorganic crystals synthesized and manipulated in solution. Their size dependent properties render great potential for colloidal nanocrystals to be outstanding candidates as novel and high performance materials. Fundamentally, matters in nanometer size regime are much less explored in history of human being, and thus they represent frontiers of today’s science. Though we don’t limit ourselves to any given sub-class of colloidal nanocrystals, semiconductor nanocrystals (quantum dots, QDs) are the main focus area at present. Our general philosophy is to combine fundamental research with materials function. Specifically, we usually select most promising material systems as our model systems of fundamental studies. Given the extremely rapid depletion of nature resources, such philosophy should promote development of basic sciences of novel and high performance materials that are much needed for the foreseeable future of human society. Synthetic chemistry of colloidal nanocrystals and mechanisms of crystallization Quality of colloidal nanocyrstals is the first step for realization of any desired function and understanding of any fundamental principle of colloidal nanocrystals. This is why the Peng’s group has chosen synthetic chemistry of colloidal nanocrystals as its main mission. The main challenge on development of synthetic chemistry of colloidal nanocrystals lies on lacking of adequate theoretical framework of crystallization. Combination of synthetic development with investigation of crystallization is a natural style of research along this direction. Semiconductor nanocrystals are probably the most promising class of emissive materials for optoelectronics, bio-medical imaging, and sensing. Though control of size and size distribution has achieved to a much advanced level in the past twenty years or so, control on their optical properties to monodisperse level remains as a challenge. Our current emphasis of synthetic chemistry of semiconductor nanocrystals is to initiate such efforts in the field. Spectroscopy and optical materials Quantum dots as luminescence nano-materials have already been applicable in a number of applications. However, there is still a great gap between real life applications and their promises. Lacking of fundamental understanding of their spectroscopic properties is one limiting factor, in addition to their synthetic control. Spectroscopy studies of the Peng’s group have two main themes. The first main theme is to assist synthetic chemistry development, especially synthetic control of the excited properties of colloidal nanocrystals. The second theme is to discover novel and high performance optical materials for various applications. Besides routine spectroscopic methods such as absorption and steady-state photoluminescence spectroscopies, we study optical properties of nanocrystals mainly based on two advanced techniques. One is transient-state spectroscopy for studying excited state dynamics in nanocrystal systems. The other one is single-molecular spectroscopy. Applications and related chemistry/physics Size dependent properties and solution-based processibility of colloidal nanocrystals are exploited for a variety of applications, such as optoelectronics, bio-medical imaging, catalysis, etc. Research along this direction in the Peng’s group aims at those cutting-edge applications that shall likely make immediate impact to industry. The aiming angle emphasizes processing chemistry of colloidal nanocrystals associated with specific devices. The current emphasis of optoelectronic devices is high performance light-emitting-diodes based on quantum dots. In collaboration with our partners in academic and industrial sectors, the goal is to advance the technology to real life products for solid-state-lighting and displays. Another example of applications is bio-medical imaging using nanocrystals.

近期论文

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Haixin Lei, Liulin Lv, Xionglin Zhou, Shaojie Liu, Meiyi Zhu, Huifeng Wang, Haiyan Qin*, Qun Fang, Xiaogang Peng*, Weakly Confined Semiconductor Nanocrystals Excel in Photochemical and Optoelectronic Properties: Evidence from Single-Dot Studies, Journal of the American Chemical Society, (2024). Xing Lin, Zikang Ye, Zhiyuan Cao, Haiyan Qin, Xiaogang Peng*, Colloidal Nanocrystals: A Promising Semiconductor Platform for Photon/Exciton Manipulation, Accounts of Materials Research, (2024). Hui Sun, Zhiyuan Cao, Haiyan Qin, Xiaogang Peng, Bin Su*, Ligand-controlled electrochemiluminescence generation from CdSe/CdS/ZnS core/shell/shell quantum dots, Nano Research, 17(2024), 7776-7785. Yongzheng Ye, Shaojie Liu, Haixin Lei, Liulin Lv, Haiyan Qin, Wei Fang*, Xiaogang Peng*, Suppressed Magnitude of Spectral Diffusion in Cube-Shaped CdSe/CdS Core/Shell Nanocrystals with Exceedingly Stable Photoluminescence, Nano Letters, 24(9)(2024), 2712-2718. Zikang Ye, Haiyan Qin, Xiaogang Peng*, Nobel Prize in Chemistry 2023 and a material platform for exciton (photon) manipulation, Chinese Science Bulletin, 68(36)(2023), 4933-4938. Weicheng Cao, Alexander Yakimov, Xudong Qian, Jiongzhao Li,* Xiaogang Peng, Xueqian Kong,* , Christophe Copéret*, Surface Sites and Ligation in Amine-capped CdSe Nanocrystals, Angewandte Chemie International Edition, 62(2023), e202312713. Xiao-Rui Liu, Zi-Jun Lei, Yue-Yue Zhang, Hui-Ling Lu, Fu-Gang Zhao, Xunshan Liu*, Jian-Hai Zhou*, Yong-Miao Shen*, Xiaogang Peng, Photocatalytic formation of P–S bonds via CdSeS/CdZnS quantum dots under visible light irradiation, Organic Chemistry Frontiers, 11(2024), 380-389. Zhiyuan Cao, Chuyue Li, Yufei Shu, Meiyi Zhu, Bin Su*, Haiyan Qin*, Xiaogang Peng*, Unraveling Mechanisms of Highly Efficient Yet Stable Electrochemiluminescence from Quantum Dots, Journal of the American Chemical Society, 145(48)(2023), 26425–26434. Haixin Lei, Shaojie Liu, Jiongzhao Li, Chuyue Li, Haiyan Qin*, Xiaogang Peng*, Band-Edge Energy Levels of Dynamic Excitons in Cube-Shaped CdSe/CdS Core/Shell Nanocrystals, ACS Nano, 17(21)(2023), 21962–21972. Xionglin Zhou, Jiongzhao Li*, Xudong Qian, Jie Zhu, Xueqian Kong, Xiaogang Peng*, Selective Formation of Monodisperse Right Trigonal-Bipyramidal and Cube-Shaped CdSe Nanocrystals: Stacking Faults and Facet-Ligand Pairing, Journal of the American Chemical Society, 145(42)(2023), 23238-23248. Jiakuan Zhang, Chuyue Li, Jiongzhao Li*, Xiaogang Peng*, Synthesis of CdSe/ZnSe Core/Shell and CdSe/ZnSe/ZnS Core/Shell/Shell Nanocrystals: Surface-Ligand Strain and CdSe–ZnSe Lattice Strain, Chemistry of Materials, 35(17)(2023), 7049–7059. Hairui Lei, Jiongzhao Li*, Xueqian Kong, Linjun Wang*, Xiaogang Peng*, Toward Surface Chemistry of Semiconductor Nanocrystals at an Atomic-Molecular Level, Accounts of Chemical Research, 56 (14) (2023), 1966-1977. Jiakuan Zhang, Jiongzhao Li*, Zikang Ye, Jiting Cui, Xiaogang Peng*, Hot-Electron-Induced Photochemical Properties of CdSe/ZnSe Core/Shell Quantum Dots under Ambient Environment. Journal of the American Chemical Society, 145 (25) (2023), 13938–13949. Hairui Lei, Tenghui Li, Jiongzhao Li, Jie Zhu, Haibing Zhang, Haiyan Qin, Xueqian Kong, Linjun Wang*, Xiaogang Peng*, Reversible Facet Reconstruction of CdSe/CdS Core/Shell Nanocrystals by Facet–Ligand Pairing. Journal of the American Chemical Society, 145 (12) (2023), 6798-6810. Orian Elimelech, Omer Aviv, Meirav Oded, Xiaogang Peng, Daniel Harries*, Uri Banin*, Entropy of Branching Out: Linear Versus Branched Alkylthiols Ligands on CdSe Nanocrystals. ACS Nano, 16 (3) (2022), 4308-4321. Linxi Wang, Xudong Qian, Yang Ren, Hairui Lei, Xiaofei Hu, Dongdong Chen, Jiongzhao Li*, Xiaogang Peng*, Tuning the Crystal Structure of the Epitaxial CdS Shells on Zinc-Blende CdSe Nanocrystals: Lattice Defects and Electronic Traps. Chemistry of Materials, 34 (18) (2022), 8297-8305. Liulin Lv, Shaojie Liu, Jiongzhao Li, Haixin Lei, Haiyan Qin, Xiaogang Peng*, Synthesis of Weakly Confined, Cube-Shaped, and Monodisperse Cadmium Chalcogenide Nanocrystals with Unexpected Photophysical Properties. Journal of the American Chemical Society, 144 (37) (2022), 16872-16882. Xing Lin, Xingliang Dai, Zikang Ye, Yufei Shu, Zixuan Song, Xiaogang Peng*, Highly-Efficient Thermoelectric-Driven Light-Emitting Diodes Based on Colloidal Quantum Dots. Nano Research, 15 (10) (2022), 9402-9409. Xudong Qian, Jiongzhao Li*, Xiaogang Peng*, A Liquid-Phase Infrared Strategy for Quantification of Surface Alkanoate Ligands on Colloidal Nanocrystals. Chemistry of Materials, 34 (15) (2022), 7006-7014. Dongdong Chen, Hairui Lei, Chenqi Zhu, Xing Chen, He Tian, Wei Fang, Haiyan Qin, Xiaogang Peng*, Epitaxial Integration of Multiple CdSe Quantum Dots in a Colloidal CdS Nanoplatelet. Journal of the American Chemical Society, 144 (19) (2022), 8444-8448. Shaojie Liu, Yufei Shu, Meiyi Zhu, Haiyan Qin*, Xiaogang Peng, Anomalous Emission Shift of CdSe/CdS/ZnS Quantum Dots at Cryogenic Temperatures. Nano Letters, 22 (7) (2022), 3011-3017. Lei Yang, Xiaoqi Zhou, Yuzhong Chen, Yufeng Qin, Xueqian Kong, Haiming Zhu, Chaodan Pu*, Xiaogang Peng*, Efficient Quasi-Stationary Charge Transfer from Quantum Dots to Acceptors Physically-Adsorbed in the Ligand Monolayer. Nano Research, 15 (1) (2022), 617-626. Xiaofei Hu, Jiongzhao Li*, Zhe Wang, Xudong Qian, Chenqi Zhu, Xiaogang Peng*, Universal Precursors Dispersed in Vaseline-Octadecene Gel for Nanocrystal Synthesis. Nano Research, 15 (5) (2022), 4724-4731. Jiongzhao Li, Weicheng Cao, Yufei Shu, Haibing Zhang, Xudong Qian, Xueqian Kong*, Linjun Wang*, Xiaogang Peng*, Water Molecules Bonded to the Carboxylate Groups at the Inorganic–Organic Interface of an Inorganic Nanocrystal Coated with Alkanoate Ligands. National Science Review, 9 (2) (2022), nwab138. Yang Li*, Xiaoqi Hou, Yongmiao Shen, Ning Dai, Xiaogang Peng*, Tuning the Reactivity of Indium Alkanoates by Tertiary Organophosphines for the Synthesis of Indium-Based Quantum Dots. Chemistry of Materials, 33 (23) (2021), 9348-9356. Shangxin Lin, Xiaogang Peng*, Current Status and Challenges of Solar Cells Based on Semiconductor Nanocrystals. Energy & Fuels, 35 (23) (2021), 18928-18941. Zhuang Hu, Yufei Shu, Haiyan Qin, Xiaofei Hu, Xiaogang Peng*, Water Effects on Colloidal Semiconductor Nanocrystals: Correlation of Photophysics and Photochemistry. Journal of the American Chemical Society, 143 (44) (2021), 18721-18732. Zikang Ye, Xing Lin, Na Wang, Jianhai Zhou, Meiyi Zhu, Haiyan Qin*, Xiaogang Peng*, Phonon-Assisted Up-Conversion Photoluminescence of Quantum Dots. Nature Communications, 12 (2021), 4283. Yan Zhang, Haibing Zhang, Dongdong Chen, Cheng-Jun Sun, Yang Ren, Jianhui Jiang, Linjun Wang*, Zheng Li*, Xiaogang Peng*, Engineering of Exciton Spatial Distribution in CdS Nanoplatelets. Nano Letters, 21 (12) (2021), 5201-5208. Zi-Wei Xi, Lei Yang, Dan-Yan Wang, Chuan-Wei Feng, Yufeng Qin, Yong-Miao Shen*, Chaodan Pu*, Xiaogang Peng, Visible Light Induced Reduction and Pinacol Coupling of Aldehydes and Ketones Catalyzed by Core/Shell Quantum Dots. The Journal of Organic Chemistry, 86 (3) (2021), 2474-2488. Lin Huang, Zikang Ye, Lei Yang, Jiongzhao Li*, Haiyan Qin, Xiaogang Peng*, Synthesis of Colloidal Quantum Dots with an Ultranarrow Photoluminescence Peak. Chemistry of Materials, 33 (5) (2021), 1799-1810. Xiaoqi Hou, Haiyan Qin*, Xiaogang Peng, Enhancing Dielectric Screening for Auger Suppression in CdSe/CdS Quantum Dots by Epitaxial Growth of ZnS Shell. Nano Letters, 21 (9) (2021), 3871-3878. Yunzhou Deng, Xing Lin, Wei Fang, Dawei Di, Linjun Wang, Richard H. Friend, Xiaogang Peng, Yizheng Jin*, Deciphering Exciton-Generation Processes in Quantum-Dot Electroluminescence. Nature Communications, 11 (2020), 2309 . Matthew C. Beard, Xiaogang Peng, Zeger Hens, Emily A. Weiss*, Introduction to Special Issue: Colloidal Quantum Dots. The Journal of Chemical Physics, 153 (24) (2020), 240401. Liulin Lv, Jiongzhao Li*, Yonghong Wang, Yufei Shu, Xiaogang Peng*, Monodisperse CdSe Quantum Dots Encased in Six (100) Facets via Ligand-Controlled Nucleation and Growth. Journal of the American Chemical Society, 142 (47) (2020), 19926-19935. Hairui Lei*, Yonghong Wang, Shaojie Liu, Meiyi Zhu, Chaodan Pu, Shangxin Lin, Haiyan Qin, Xiaogang Peng*, Delocalized Surface Electronic States on Polar Facets of Semiconductor Nanocrystals. ACS Nano, 14 (12) (2020), 16614-16623. Zhiyuan Cao, Yufei Shu, Haiyan Qin, Bin Su*, Xiaogang Peng*, Quantum Dots with Highly Efficient, Stable, and Multicolor Electrochemiluminescence. ACS Central Science, 6 (7) (2020), 1129-1137. Yufei Shu, Xing Lin, Haiyan Qin, Zhuang Hu, Yizheng Jin, Xiaogang Peng*, Quantum Dots for Display Applications. Angewandte Chemie-International Edition, 59 (50) (2020), 22312-22323. Zhuang Hu, Shaojie Liu, Haiyan Qin*, Jianhai Zhou, Xiaogang Peng*, Oxygen Stabilizes Photoluminescence of CdSe/CdS Core/Shell Quantum Dots via Deionization. Journal of the American Chemical Society, 142 (9) (2020), 4254-4264. Shangxin Lin, Jiongzhao Li, Chaodan Pu, Hairui Lei, Meiyi Zhu, Haiyan Qin, Xiaogang Peng*, Surface and Intrinsic Contributions to Extinction Properties of ZnSe Quantum Dots. Nano Research, 13 (3) (2020), 824-831. Chaodan Pu, Xingliang Dai, Yufei Shu, Meiyi Zhu, Yunzhou Deng, Yizheng Jin*, Xiaogang Peng*, Electrochemically-Stable Ligands Bridge the Photoluminescence-Electroluminescence Gap of Quantum Dots. Nature Communications, 11 (2020), 937. Jian Lin, Xingliang Dai, Xiaoyong Liang, Desui Chen, Xuerong Zheng, Yifei Li, Yunzhou Deng, Hui Du, Yuxun Ye, Dong Chen, Chen Lin, Luying Ma, Qinye Bao, Haibing Zhang, Linjun Wang, Xiaogang Peng, Yizheng Jin*, High-Performance Quantum-Dot Light-Emitting Diodes Using NiOx Hole-Injection Layers with a High and Stable Work Function. Advanced Functional Materials, 30 (5) (2020), 1907265.

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