上海科技大学物质科学与技术学院系统材料学宁志军

huatai

宁志军 ,上海科技大学。2009年毕业于华东理工大学化学与分子工程学院，获得应用化学系博士学位，导师田禾院士，2009年至2011年在瑞典皇家工学院进行博士后研究，2011年至2014年在多伦多大学电子工程系从事博士后研究，导师Edward H. Sargent教授，2014年12月加入上海科技大学物质科学与技术学院，任助理教授。2016年起担任国家重点研发计划青年科学家项目首席科学家。


宁志军 Zhijun Ning    助理教授、研究员 Assistant Professor, PI
研究方向        光电功能材料与器件
联系方式        Email：ningzhj@shanghaitech.edu.cn        

2004 to 2009, PhD, Department of Applied Chemistry, East China University of Science and Technology, Advisor: Professor He Tian; 2009 to 2011, Postdoctoral Scholar, Royal Institute of Technology, Sweden; 2011 to 2014, Postdoctoral Scholar, department of Electrical and Computer Engineering, University of Toronto, Advisor: Professor Edward H. Sargent; December 2014 to now, Assistant Professor (Tenure-track), School of Physical Science and Technology, ShanghaiTech University.
研究介绍                 
纳米材料的合成及其在能源和光电领域的应用。主要研究内容包括：
1）纳米材料的设计和合成，侧重于有机无机杂化材料如胶体纳米晶和钙钛矿材料；
2）纳米材料的界表面化学研究以及表面修饰与改性；
3）纳米材料在太阳能电池、光催化、显示发光以及光探测器等领域中的应用。
科研成果                 
50. Highly Oriented Low-Dimensional Tin Halide Perovskites with Enhanced Stability and Photovoltaic Performance, Yuqin Liao, Hefei Liu, Wenjia Zhou, Dongwen Yang, Yuequn Shang, Zhifang Shi, Binghan Li, Xianyuan Jiang, Lijun Zhang*, Li Na Quan, Rafael Quintero-Bermudez, Brandon R. Sutherland, Qixi Mi, Edward H. Sargent, and Zhijun Ning*, J. Am. Chem. Soc., 2017, DOI: 10.1021/jacs.7b01815.
49. 0D–2D Quantum Dot: Metal Dichalcogenide Nanocomposite Photocatalyst Achieves Efficient Hydrogen Generation, Xiao-Yuan Liu, Hao Chen, Ruili Wang, Yuequn Shang, Qiong Zhang, Wei Li, Guozhen Zhang, Juan Su, Cao Thang Dinh, F. Pelayo García de Arquer, Jie Li, Jun Jiang, Qixi Mi, Rui Si, Xiaopeng Li, Yuhan Sun, Yi-Tao Long,* He Tian, Edward H. Sargent, and Zhijun Ning*. Adv. Mater., 2017, DOI: 10.1002/adma.201605646.
48. Colloidal metal oxide nanocrystals as charge transporting layers for solution-processed light-emitting diodes and solar cells, Xiaoyong Liang, Sai Bai, Xin Wang, Xingliang Dai, Feng Gao, Baoquan Sun, Zhijun Ning, Zhizhen Ye, and Yizheng Jin*. Chem. Soc. Rev., 2017, 46, 1730-1759.  
47. Colloidal quantum-dots surface and device structure engineering for high-performance light-emitting diodes, Yuequn Shang, Zhijun Ning*. National Science Review, 2017, 00: 1–14.
46. Perovskite nanocrystals: synthesis, properties and applications, Pengfei Fu, Qingsong Shan, Yuequn Shang, Jizhong Song, Haibo Zeng*, Zhijun Ning*, Jinkang Gong*. Science Bulletin, 2017, 62, 369–380.
45. Highly efficient quantum dot near-infrared light-emitting diodes. Xiwen Gong, ZhenyuYang, Grant Walters, Riccardo Comin, Zhijun Ning, Eric Beauregard, Valerio Adinolfi, Oleksandr Voznyy, and Edward H. Sargent*, Nat.Photonics, 2016, 10, 253–257
44. Colloidal quantum dot ligand engineering for high performance solar cells. Ruili Wang, Yuequn Shang, Pongsakorn Kanjanaboos, Wenjia Zhou, Zhijun Ning*, and Edward H. Sargent*, Energy Environ. Sci., 2016,9, 1130-1143.
43. Perovskite Thin Films via Atomic Layer Deposition. Brandon R. Sutherland, Sjoerd Hoogland, Michael M. Adachi, Pongsakorn Kanjanaboos, Chris T.O. Wong, Jeffrey J. McDowell, Jixian Xu, Oleksandr Voznyy, Zhijun Ning, Arjan J. Houtepen, and Edward H. Sargent*, Adv. Mater. 2015, 27, 53–58.
42. Hybrid Tandem Solar Cells With Depleted-Heterojunction Quantum Dot and Polymer Bulk Heterojunction Subcells. Taesoo Kim, Yangqin Gao, Hanlin Hu, Buyi Yan, Zhijun Ning, Lethy Krishnan Jagadamma, Kui Zhao, Ahmad R. Kirmani, Jessica Eid, Michael M. Adachi, Edward H. Sargent, Pierre M. Beaujuge, Aram Amassian, Nano Energy, 2015; 17, 196–205.
41.  Colloidal Quantum Dot Photovoltaics Enhanced by Perovskite Shelling. Zhenyu Yang, Alyf Janmohamed, Xinzheng Lan, F. Pelayo García de Arquer, Oleksandr Voznyy, Emre Yassitepe, Gi-Hwan Kim, Zhijun Ning, Xiwen Gong, Riccardo Comin, and Edward H. Sargent*, Nano Lett.2015, 15, 7539–7543.
40.  Quantum-dot-in-perovskite solids. Zhijun Ning, Xiwen Gong, Riccardo Comin, Grant Walters, Fengjia Fan, Oleksandr Voznyy, Emre Yassitepe, Andrei Buin, Sjoerd Hoogland, Edward H. Sargent, Nature, 2015, 523, 324-328.
39. Colloidal Quantum Dot Solar Cells. Graham H. Carey, Ahmed L. Abdelhady, Zhijun Ning, Susanna M. Thon, Osman M. Bakr, and Edward H. Sargent, Chemical Reviews, 2015,115, 12732–12763.
38.  Air-stable n-type colloidal quantum dot solids. Zhijun Ning, Oleksandr Voznyy, Jun Pan, Sjoerd Hoogland, Valerio Adinolfi, Jixian Xu, Min Li, Ahmad R. Kirmani, Jon Paul Sun, James Minor, Kyle W. Kemp, Haopeng Dong, Lisa Rollny, André Labelle, Graham Carey, Brandon Sutherland, Ian Hill, Aram Amassian, Huan Liu, Jiang Tang, Osman M. Bakr & Edward H. Sargent*, Nat. Mater., 2014, 13, 822–828.
37.  Solar cells based on inks of n-type colloidal quantum dots. Zhijun Ning, Haopeng Dong, Qiong Zhang, Oleksandr Voznyy, and Edward H. Sargent*, ACS Nano, 2014, 8, 10321–10327.
36.  Simultaneous Multiple Wavelength Upconversion in a Core–Shell Nanoparticle for Enhanced Near Infrared Light Harvesting in a Dye-Sensitized Solar Cell. Chunze Yuan, Guanying Chen, Lin Li, Jossana A. Damasco, Zhijun Ning, Hui Xing , Tianmu Zhang, Licheng Sun, Hao Zeng , Alexander N. Cartwright, Paras N. Prasad, Hans Ågren, ACS Appl. Mater. Interfaces 2014, 6, 18018-18025.
35.  Doping Control Via Molecularly Engineered Surface Ligand Coordination. Mingjian Yuan, David Zhitomirsky, Valerio Adinolfi, Oleksandr Voznyy, Kyle W Kemp, Zhijun Ning, Xinzheng Lan, Jixian Xu, Jin Young Kim, Haopeng Dong, Edward H Sargent*, Adv. Mater. 2013, 25, 5586–5592.
34.  Self-Assembled, Nanowire Network Electrodes for Depleted Bulk Heterojunction Solar Cells. Xinzheng Lan, Jing Bai, Silvia Masala, Susanna M Thon, Yuan Ren, Illan J Kramer, Sjoerd Hoogland, Arash Simchi, Ghada I Koleilat, Daniel Paz-Soldan, Zhijun Ning, André J Labelle, Jin Young Kim, Ghassan Jabbour, Edward H Sargent*, Adv. Mater. 2013, 25, 1769–1773.
33.  Graded doping for enhanced colloidal quantum dot photovoltaics. Zhijun Ning, David Zhitomirsky, Valerio Adinolfi, Brandon Sutherland, Jixian Xu, Oleksandr Voznyy, Pouya Maraghechi, Xinzheng Lan, Sjoerd Hoogland, Yuan Ren and Edward H. Sargent*, Adv. Mater. 2013, 25, 1719–1723.
32.  The donor–supply electrode enhances performance in colloidal quantum dot solar cells. Pouya Maraghechi, André J Labelle, Ahmad R Kirmani, Xinzheng Lan, Michael M Adachi, Susanna M Thon, Sjoerd Hoogland, Anna Lee, Zhijun Ning, Armin Fischer, Aram Amassian, Edward H Sargent*, ACS nano 2013, 7, 6111–6116.
31.  Observation of Bunched Blinking from Individual CdSe/CdS and CdSe/ZnS Colloidal Quantum Dots. Haiyan Qin, Xiangjun Shang, Zhijun Ning, Tao Fu, Zhichuan. Niu, Hjalmar Brismar, Hans Ågren, and Ying Fu, J. Phys. Chem. C, 2012, 116, 12786-12790.
30.  Systematic optimization of quantum junction colloidal quantum dot solar cells. Huan Liu, David Zhitomirsky, Sjoerd Hoogland, Jiang Tang, Illan J Kramer, Zhijun Ning, Edward H Sargent, App. Phys. Lett., 2012, 101, 151112.
29.  Performance improvement of dye-sensitizing solar cell by semi-rigid triarylamine-based donors. Chengyou Wang, Jing Li, Shengyun Cai, Zhijun Ning, Dongmei Zhao, Qiong Zhang, Jian-Hua Su, Dyes and Pigments,2012, 94, 40-48.
28.  Photovoltaic performance of solid-state DSSCs sensitized with organic isophorone dyes: Effect of dye-loaded amount and dipole moment. Bo Liu, Xiaoyan Li, Miaoyin Liu, Zhijun Ning, Qiong Zhang, Chen Li, Klaus Müllen, Weihong Zhu, Dyes and Pigments, 2012, 94, 23-27.
27.  Stable Dyes Containing Double Acceptors without COOH as Anchors for Highly Efficient Dye-Sensitized Solar Cells. Jiangyi Mao, Nannan He, Zhijun Ning, Qiong Zhang, Fuling Guo, Long Chen, Wenjun Wu, Jianli Hua, He Tian, Angew. Chem. Int. Ed., 2012, 51, 9873.
26.  All-Inorganic Colloidal Quantum Dot Photovoltaics Employing Solution-Phase Halide Passivation. Zhijun Ning, Yuan Ren, Sjoerd Hoogland, Oleksandr Voznyy, Larissa Levina, Philipp Stadler, Xinzheng Lan, David Zhitomirsky and Edward H. Sargent*, Adv. Mater. 2012, 24, 6295–6299.
25.  Use of colloidal upconversion nanocrystals for energy relay solar cell light harvesting in the near-infrared region. Chunze Yuan, Guanying Chen*, Paras N Prasad, Tymish Y Ohulchanskyy, Zhijun Ning*, Haining Tian, Licheng Sun, Hans Ågren*, J. Mater. Chem. 2012, 22, 16709–16713.
24.  Type-II colloidal quantum dot sensitized solar cells with a thiourea based organic redox couple. Zhijun Ning, Chunze Yuan, Haining Tian, Ying Fu, Lin Li, Licheng Sun, Hans Ågren*, J. Mater. Chem. 2012, 22, 6032–6037.
23.  Hybrid passivated colloidal quantum dot solids. Alexander H. Ip, Susanna M. Thon, Sjoerd Hoogland, Oleksandr Voznyy, David Zhitomirsky, Ratan Debnath, Larissa Levina, Lisa R. Rollny, Graham H. Carey, Armin Fischer, Kyle W. Kemp, Illan J. Kramer, Zhijun Ning, Andre J. Labelle, Kang Wei Chou, Aram Amassian & Edward H. Sargent*, Nat. Nanotechnol. 2012, 7, 577–582.
22.  A charge-orbital balance picture of doping in colloidal quantum dot solids. Oleksandr Voznyy, David Zhitomirsky, Philipp Stadler, Zhijun Ning, Sjoerd Hoogland, Edward H Sargent*, ACS Nano, 2012, 6, 8448–8455.
21.  Effects of K+ and Na+ ions on the fluorescence of colloidal CdSe/CdS and CdSe/ZnS quantum dots. Mátyás Molnár, Zhijun Ning*, Yun Chen, Peter Friberg, Lianming Gan, Ying Fu*, Sens. Actuators, B 2011, 155, 823–830.
20.  Exciton Polariton Contribution to the Stokes Shift in Colloidal Quantum Dots. Z.-H. Chen, S. Hellström, Zhijun Ning, et. al. J. Phys. Chem. C 2011, 115, 5286.
19.  Solar cells sensitized with type-II ZnSe–CdS core/shell colloidal quantum dots. Zhijun Ning, Haining Tian, Chunze Yuan, Ying Fu, Haiyan Qin, Licheng Sun*, Hans Ågren*, Chem. Commun. 2011, 47, 1536–1538.
18.  Pure Organic Redox Couple for Quantum‐Dot‐Sensitized Solar Cells. Zhijun Ning, Haining Tian, Chunze Yuan, Ying Fu, Licheng Sun*, Hans Ågren*, Chem. Eur. J. 2011, 17, 6330–6333.
17.  Role of surface ligands in optical properties of colloidal CdSe/CdS quantum dots. Zhijun Ning, Matyas Molnár, Yun Chen, Peter Friberg, Liming Gan, Hans Ågren, Ying Fu*, Phys. Chem. Chem. Phys. 2011, 13, 5848–5854.
16.  Quantum Rod‐Sensitized Solar Cells. Zhijun Ning, Chunze Yuan, Haining Tian, Peter Hedström, Licheng Sun*, Hans Ågren*, ChemSusChem 2011, 4, 1741–1744.
15.  Wave-function engineering of CdSe/CdS Core/Shell quantum dots for enhanced electron transfer to a TiO2 Substrate. Zhijun Ning, Haining Tian, Haiyan Qin, Qiong Zhang, Hans Ågren, Licheng Sun, Ying Fu*, J. Phys. Chem. C 2010, 114, 15184–15189.
14.  Improvement of dye-sensitized solar cells: what we know and what we need to know. Zhijun Ning, Ying Fu, He Tian, Energy Environ. Sci. 2010, 3, 1170–1181.
13.  Photovoltage Improvement for Dye-Sensitized Solar Cells via Cone-Shaped Structural Design. Zhijun Ning, Qiong Zhang, Hongcui Pei, Jiangfeng Luan, Changgui Lu, Yiping Cui, He Tian, J. Phys. Chem. C 2009, 113, 10307-11313.
12.  ‘Click’ Synthesis of Starburst Triphenylamine as Potential Emitting Material. Qiong Zhang, Zhijun Ning, He Tian, Dyes and Pigments 2009, 81, 80-84.
11.  Dye-sensitized solar cells based on donor-acceptor organic sensitizers with maleimide as electron acceptor. Qiong Zhang, Zhijun Ning, Hongcui Pei, Wenjun Wu, Frontiers of Chemistry in China 2009, 4, 269-277.
10.  Conveniently synthesized isophorone dyes for high efficiency dye-sensitized solar cells: tuning photovoltaic performance by structural modification of donor group in Donor-Acceptor system. Bo Liu, Weihong Zhu, Qiong Zhang, Wenjun Wu, Min Xu, Zhijun Ning, Yongshu Xie, He Tian, Chem. Commun, 2009, 1766-1768.
9.      Dye-sensitized solar cells based on donor-acceptor organic sensitizers with maleimide as electron acceptor. Qiong Zhang, Zhijun Ning, Hongcui Pei, Wenjun Wu, Frontiers of Chemistry in China 2009, 4, 269-277.
8.      Triarylamine: a promising core unit for efficient photovoltaic materials. Zhijun Ning, He Tian, Chem. Commun. 2009, 5483-5495.
7.      Novel Iridium Complex with Carboxyl Pyridyl Ligand for Dye-Sensitized Solar Cells: High Fluorescence Intensity, High Electron Injection Efficiency? Zhijun Ning, Qiong Zhang, Wenjun Wu, He Tian, J. Organomet. Chem. 2009, 694, 2705-2711.
6.      Starburst triarylamine based dyes for efficient dye-sensitized solar cells. Zhijun Ning, Qiong Zhang, Wenjun Wu, Hongcui Pei, Bo Liu, He Tian, J. Org. Chem. 2008. 73, 3791-3797.
5.      Photochromic Spiropyran Dendrimers: “Click”Syntheses, Characterization, and Optical Properties. Qiong Zhang, Zhijun Ning, Yongli Yan, Shixiong Qian, He Tian, Macromol. Rapid Commun. 2008, 29, 193-201.
4.      Bisindolylmaleimide derivatives as non-doped red organic light-emitting materials. Zhijun Ning, Yechun Zhou, Qiong Zhang, Dongge Ma, Junji Zhang, He Tian, J. Photochem. Photobio. A: Chemistry 2007, 192, 8-16.
3.      Soluble porphyrin–bisindolylmaleimides dyad and pentamer as saturated red luminescent materials. Yang Li, Lifeng Cao, Zhijun Ning, Zhe Huang, Yong Cao, He Tian. Tetrahedron Lett. 2007, 48, 975-978.
2.      Aggregation-induced emission (AIE)-active starburst triarylamine fluorophores as potential non-doped red emitter for organic light-emitting diodes and Cl2 gas chemodosimeter. Zhijun Ning, Zhao Chen, Qiong Zhang, Yongli Yan, Shixiong Qian, Yong Cao, He Tian, Adv. Funct. Mater. 2007, 17, 3799-3807
1.      A soluble 5-carbazolium-8-hydroxyquinoline Al(III) complex as a dipolar luminescent material. Juntao Xie, Zhijun Ning, He Tian, Tetrahedron Lett. 2005, 46, 8559-8562.

qiangzi

《国家科学评论》（National Science Review, NSR）2017年第2期出版了由上海科技大学宁志军教授课题组撰写的综述文章：

Colloidal quantum-dots surface and device structure engineering forhigh-performance light-emitting diodes.Natl Sci Rev 2017; 4: 170–183

在显示领域，胶体量子点具有色彩纯、色域覆盖范围宽等特质，再加上其溶液可处理以及柔性兼容的特点，量子点在显示领域展现出巨大的商业化前景。通过与液晶技术的兼容，基于量子点光致发光技术的显示设备已经实现了规模化的商业应用。和有机发光二极管（OLED）类似，量子点发光二极管（QLED）可以有效避免背光源技术光散射严重等缺点，进一步提高色彩的品质，QLED被广泛认为是下一代显示技术的有力竞争者。

不同波长胶体量子点及QLED器件效率的发展

近年来，随着量子点表面工程以及器件设计的不断发展，QLED的性能获得了长足的进步，商业化前景逐渐显现。由上海科技大学宁志军教授和其博士生尚跃群撰写的“胶体量子点发光二极管中的表面工程和器件设计"综述文章，介绍了近年来胶体量子点LED器件在量子点表面改性及器件结构设计等方面的进展。

文章首先讨论了影响QLED器件性能的量子点表面缺陷和载流子注入问题。针对这些问题，文章总结了胶体量子点表面工程和器件结构设计方面的四条策略：（1）引入核壳结构，并通过调节壳层的组成和厚度来减少表面缺陷及抑制俄歇非辐射复合过程；（2）引入与量子点表面结合力强的新配体来改善量子点的电学性能及减少配体损失；（3）综合考虑传输层能级匹配和传输性能的影响，加入阻挡层可以有效调节载流子注入平衡；（4）胶体量子点体异质结器件结构（量子点嵌入钙钛矿或有机分子等基质中）的开发。

文章总结认为在保持量子点较高发光效率的同时保证有效的电子和空穴平衡注入是提高QLED性能的关键。考虑到量子点表面组成对载流子注入的重要影响，量子点表面改性和器件优化需要协同进行。最后，文章展望了QLED发展中存在的问题和挑战，包括器件工作状态下的稳定性、器件效率的提升、毒性和大规模器件制备等方面，并讨论了可能的解决方案。

文章信息：

Colloidal quantum-dots surface and device structure engineering forhigh-performance light-emitting diodes

Yuequn Shang and Zhijun Ning

Natl Sci Rev 2017; 4: 170–183

https://doi.org/10.1093/nsr/nww097

kejibu

宁志军：梯度结构提升锡钙钛矿太阳能电池效率至9.4%

研究亮点：

1. 制备出二维-准二维-三维（2D-quasi-2D-3D）梯度结构钙钛矿。

2. 可移除的假卤素添加剂作为调节剂实现锡钙钛矿结构的调控。

3. 梯度结构能增强锡钙钛矿的抗氧化性和提高载流子迁移率。

4. 梯度结构锡钙钛矿太阳能电池实现9.41%的光电转化效率。

卤素钙钛矿太阳能电池是目前最具前景的新型太阳能电池之一，最近实现了超过多晶硅电池的23.3%的认证效率，引起了学术界和产业界的广泛关注。目前卤素钙钛矿太阳能电池常用的是铅钙钛矿材料，而重金属铅的毒性问题为其大规模应用带领了一定的不确定性，因此非铅体系钙钛矿的开发也一直是卤素钙钛矿材料的研究重点之一。

在众多非铅替代元素中，同族的具有相似壳层电子结构的锡是一种理想的替代物。锡钙钛矿具有和铅钙钛矿类似的能带结构，其带隙约为1.3 eV, 比铅钙钛矿更接近太阳能电池材料的理想带隙；理论计算表明锡钙钛矿的载流子有效质量更小，载流子迁移率更高，因此锡钙钛矿太阳能电池具有更高的理论光电转化效率。

但是锡钙钛矿稳定性较差，二价锡离子极易氧化成四价锡离子，造成结构的畸变和缺陷的产生，极大限制了锡钙钛矿电池效率的提高。如何提高材料的稳定性是目前锡钙钛矿太阳能电池开发面临的重要挑战。

有鉴于此，上海科技大学宁志军教授课题组利用假卤素调控剂NH4SCN调控锡钙钛矿结晶生长，成功制备了二维-准二维-三维（2D-Quasi 2D-3D）梯度结构的钙钛矿薄膜。

总之，此梯度结构能有效降低锡钙钛矿薄膜的氧化和缺陷浓度，提高太阳能电池性能。该研究为低维梯度钙钛矿薄膜结构的调控提供了一种新的思路，对钙钛矿太阳能电池无铅化的进一步发展具有重要意义。

参考文献：

Wang F, Jiang X, Ning Z, et al. 2D-Quasi-2D-3D Hierarchy Structure for Tin Perovskite Solar Cells with Enhanced Efficiency and Stability[J]. Joule, 2018.

DOI: 10.1016/j.joule.2018.09.012

https://doi.org/10.1016/j.joule.2018.09.012

shouzhi

11月27日，科睿唯安（Clarivate Analytics）发布了其2018年度“高被引科学家”名单，这也是该名单连续第五年发布。基于Web of Science数据，通过对过去11年间引文数据的分析，该名单在各领域中遴选出了高被引论文数量最多即受到全球同行集体认可的最具引文影响力的科研人员。全球来自21个自然科学与社会科学领域及跨学科领域的6000多人次高被引科学家入榜。


值得关注的是，2018年度“高被引科学家”名单新增了跨学科领域（cross-field category），遴选出了约2000人次在多学科领域发表的高影响力论文、具有卓越表现的研究人员。我校青年教授宁志军入选此次“跨学科高被引科学家名单”，充分体现了我校在培养青年人才及构建学科交叉体系上的显著成效。据悉，国内高校（不含港澳台地区）共有160人次入选该名单。


宁志军教授于2014年12月加入上海科技大学物质科学与技术学院，其研究方向主要集中在基于溶液法组装的光电功能材料与器件方面，研究内容包括新材料的合成、材料的表面改性与界面工程、器件的设计与制备（包括太阳能电池、电致发光、光探测器、光催化）。宁教授所涉及的研究领域需要综合包括材料、化学、物理与电子工程等各学科方面的知识。


近年来，宁教授课题组在跨学科研究方向上相继取得了一系列重大进展，相关成果在《先进材料》、《美国化学会志》、《焦耳》、《先进功能材料》、《能源与环境科学》等国际著名学术期刊上发表。例如，在太阳能电池方面，合成制备了新型的低维锡钙钛矿结构，大幅提高材料的稳定性并降低了缺陷浓度，通过界面能带匹配和表面钝化降低了界面处电子的复合，提高了电子抽取的速率，结合材料和器件结构的改进设计，最终实现了9.4%的非铅钙钛矿太阳能电池效率记录；在电致发光器件方面，设计制备了一系列低维钙钛矿结构，实现了较高的发光效率，通过载流子传输层的优化，实现了高效的载流子注入，报道了当时最高的红光量子点发光效率记录；在光催化方面，合成了一系列低维纳米材料，通过表面新型有机配体的调节和掺杂元素的引入，减少了纳米晶的缺陷和载流子复合，大幅提高了窄禁带、环境友好型纳米材料的光催化产氢效率，发展了零维量子点/二维MoS2纳米复合材料光催化体系。


宁教授课题组和物质学院会同化学、物理、材料等多方面、多学科、多课题组展开深入合作，加速推动了相关研究进展。回顾上述一系列成果的取得，可谓“来之不易”：一方面倾注着宁教授团队的心血和汗水，另一方面受益于来自上科大为跨学科交叉研究构建的平台支持。

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报告人：宁志军研究员
报告时间：2019年1月11日下午15:30
报告地点：中科大环境资源楼939会议室


报告摘要：
21世纪，能源问题是人类面临的严峻挑战，太阳能电池是目前解决能源需求的有效手段之一。钙钛矿因其载流子迁移率高、光谱吸收范围宽和激子结合能低等优点，被认为是一种理想的新型太阳能电池材料。经过多年发展，卤素钙钛矿太阳能电池实现了超过多晶硅电池的23.7%的认证效率。然而目前常用的铅钙钛矿的毒性为其应用带来了一定的不确定性，开发无毒或低毒的钙钛矿材料具有重要意义。我们的研究集中于开发锡基钙钛矿材料，锡基钙钛矿具有和铅钙钛矿类似的能带结构，是一种低毒且具有理想带隙（≈ 1.3 eV）的光伏材料。本报告将介绍课题组最近几年在非铅钙钛矿太阳能电池方面的一些进展，通过钙钛矿结构的维度调整、晶体生长调控以及器件结构优化，大幅提高了非铅钙钛矿太阳能电池的效率。此外还将介绍一下我们在纳米材料与器件的表界面调控方向上的一些进展。
报告人简介：
宁志军，上海科技大学物质科学与技术学院研究员、课题组长、博士生导师，国家重点研发计划青年科学家项目首席科学家。2009年在华东理工大学应用化学系获博士学位。2009年到2011年在瑞典皇家工学院进行博士后研究，2011年到2014年在加拿大多伦多大学进行博士后研究。2014年底加入上海科技大学物质科学与技术学院。以通讯作者和第一作者在Nature , Nat. Mater., Joule, J. Am. Chem. Soc., Adv. Mater., Energy and Environment Science等国际期刊上发表文章70余篇，2018年入选科睿唯安高被引科学家。