科学研究:
研究领域:
染料敏化太阳能电池
太阳能的有效利用是解决化石能源的日益枯竭及温室效应和环境污染等问题的重要途径之一。太阳能电池能实现无机械转化和污染副产品的情况下,把太阳能直接转化为电能,一直是研究热点。染料敏化太阳能电池由于其价格便宜、工艺简单、环境友好、形状多样化等优点而可能替代传统的硅基电池。染料敏化太阳能电池通常由在导电基底上的敏化纳晶多孔半导体作为工作电极,由铂等作为对电极,在两片电极中间由含有氧化还原电对的电解质构成。氧化还原电对在两片电极之间传输电子,同时在电子注入到半导体能带后使激发态染料得以再生。近年,腐蚀性低,吸光弱的基于联吡啶钴的电解质使得电解质的发展逐渐转向无碘电解质。我们已经成功将过渡金属(钴、锰等)配合物氧化还原电对用于染料敏化太阳能电池中并取得了优异的光电转换效率。通过对电解质进行凝胶固化,器件的稳定性得到了很大的提升。同时,我们采用水作为电解质溶剂来代替有毒的有机溶剂,获得了目前世界效率最高的水电解质染料敏化太阳能电池,这是制备环境友好的太阳能电池器件的一个重要途径。
钙钛矿太阳能电池
有机无机杂化钙钛矿太阳能电池自2012年起已在世界范围内进行广泛的研究,并被科学杂志选为2013年科学界十大突破之一。在这种新型全固态杂化太阳能电池中,具有ABX3晶型结构的有机-无机-卤素钙钛矿材料为吸光材料。A是有机阳离子,B是金属离子,X是卤素离子。这种三卤钙钛矿材料具有很宽的吸光范围(300-800 nm)和高摩尔吸光系数,因此,很薄的一层吸光层(~ 300 nm)就足以满足高效钙钛矿太阳能电池的要求。而提高钙钛矿太阳能电池光电转换效率和稳定性的方法在于材料的选择和工艺的优化。这种低成本和简单工艺的太阳能电池是光伏建筑一体化工程的重要组成部分。
研究方向:
1. 钙钛矿太阳能电池
Perovskite solar cells
2. 钙钛矿 叠层太阳能电池
Tandem perovskite solar cells
3. CO2电催化还原
Electrocatalysis for CO2 reduction.
承担科研项目情况:
共主持基金6项。
1. 低带隙无机钙钛矿组分优化及其对稳定性的影响机理研究,国家自然科学基金面上项目,60万,2020.1.1-2023.12.31. 主持
2. 水电解质pH值的调控及其对p型染料敏化太阳能电池光电性能的影响,国家自然科学基金,21万,2016.1.1-2018.12.31,主持
3. 富勒烯衍生物脂基端功能化及其在低温钙钛矿电池上的应用,湖北省自然科学基金,5万,2016.1.1-2017.12.31,主持
4. 富勒烯衍生物端功能化及其在钙钛矿电池上的应用,北京分子科学国家实验室开放课题,8万,2016.3.1-2018.2.28,主持
科研成果:
在相关领域发表SCI论文20余篇,包括以通讯作者发表的Energy & Environ. Sci.、ChemSusChem.、Green Chem.、Chem. Commun.、Angew. Chemie. In. Ed.等。获授权发明专利2项。研究成果曾被Energy & Environ. Sci.选为封面文章和热点文章等进行专题报道。
发明专利:
[1]向万春,张帆,姚希. 一种稳定的钙钛矿太阳能电池及其制备方法[P]. 湖北:CN107919439A,2018-04-17.
[2]方艳艳,向万春,方世璧,林原. 一种悬挂强电负性离子官能团的离子液体聚合物及其制备方法与应用[P]. 北京:CN102234354A,2011-11-09.
[3]向万春,方世璧,林原. 聚合物-金属离子络合物凝胶电解质及其制备方法与应用[P]. 北京:CN102020748A,2011-04-20.
[4]向万春,方世璧,林原. 聚合物-金属离子络合物凝胶电解质及其制备方法与应用[P]. 北京市:CN102020748B,2012-08-08.
[5]向万春,张帆,姚希. 一种稳定的钙钛矿太阳能电池及其制备方法[P]. 湖北省:CN107919439B,2020-01-14.
[6]向万春,郑勇,潘俊烨,陈麒,涂晓诗. 一种全无机钙钛矿太阳能电池的制备方法[P]. 湖北省:CN110416361A,2019-11-05.
[7]方艳艳,向万春,方世璧,林原. 一种悬挂强电负性离子官能团的离子液体聚合物及其制备方法与应用[P]. 北京市:CN102234354B,2014-04-16.
论文专著:
代表性论文:
26.Wanchun Xiang*, Junye Pan, Qi Chen, In Situ Formation of NiOxInterlayer for Efficient n-i-p Inorganic Perovskite Solar Cells, ACS App. Energy Mater. 2020, 3, 5977-5983
25.Wanchun Xiang*#, Zaiwei Wang#, Dominik J. Kubicki, Wolfgang Tress, Jingshan Luo, Daniel Prochowicz, Seckin Akin, Lyndon Emsley, Jiangtao Zhou, Giovanni Dietler, Michael Grätzel, Anders Hagfeldt*, Europium-Doped CsPbI2Br for Stable and Highly Efficient Inorganic Perovskite Solar Cells, Joule, 2019, 3, 205-214. (ESI高被引论文和热点论文)
24.Wanchun Xiang*#, Zaiwei Wang#, Dominik J. Kubicki, Wolfgang Tress, Jingshan Luo, Xueting Wang, Jiahuan Zhang, Albert Hofstetter, Lijun Zhang, Lyndon Emsley, Michael Grätzel, Anders Hagfeldt*, Ba-induced phase segregation and band gap reduction in mixed-halide inorganic perovskite solar cell,Nat. Commun. 2019,10, 4686.
23.Wanchun Xiang*, Wolfgang Tress*, Review on Recent Progress of All-inorganic-Metal Halide Perovskites and Solar Cells, Adv. Mater. 2019, 31, 201902851
22.Qi Chen, Wei Wang, Shengqiang Xiao*, Yi-bing Cheng, Fuzhi Huang, and Wanchun Xiang*, Improved Performance of Planar Perovskite Solar Cells Using an Amino-Terminated Multifunctional Fullerene Derivative as the Passivation Layer, ACS App. Mater. Inter, 2019, 11, 27145-27152
21.Abdelaal Saiyd Abdelaal Ahmed, Wanchun Xiang*, Amiinu Ibrahim Saana, Li Ziying, Ruohan Yu and Xiujian Zhao*, ZnO-nitrogen doped carbon derived from zeolitic imidazolate framework as an efficient counter electrode in dye-sensitized solar cells, Sustainable Energy Fuels, 2019, 3, 1976-1987 (内封面文章)
20.Wanchun Xiang*, Anders Hagfeldt*, Phase stabilization of all-inorganic perovskite materials for photovoltaics, Current Opinion in Electrochemistry, 2018, 11, 141-145.
19.Abdelaal. S. A. Ahmed, Wanchun Xiang*, Ziying Li, Ibrahim Saana Amiinu, Xiujian Zhao*, Yolk-shell m-SiO2@ Nitrogen doped carbon derived zeolitic imidazolate framework high efficient counter electrode for dye-sensitized solar cells, Electrochimica Acta, 2018, 292, 276-284.
18.Abdelaal S. A. Ahmed, Wanchun Xiang*, Xiaowei Hu, Chen Qi, Xiujian Zhao*, Si3N4/MoS2-PEDOT: PSS composite counter electrode for bifacial dye-sensitized solar cells, Solar Energy, 2018, 173, 1135-1143.
17.Abdelaal S. A. Ahmed, Wanchun Xiang*, Ibrahim Saana Amiinu and Xiujian Zhao*, Zeolitic-imidazolate-framework (ZIF-8)/PEDOT:PSS composite counter electrode for low cost and efficient dye-sensitized solar cells, New J. Chem. 2018, 42, 17303-17310.
16.Abdelaal S. A. Ahmed, Wanchun Xiang*, Ibrahim Saana Amiinu and Xiujian Zhao*, Carbon black/silicon nitride nanocomposites as high-efficiency counter electrodes for dye-sensitized solar cells, New J. Chem. 2018, 42, 11715-11723.
15.Wanchun Xiang*, Qi Chen, Yiyuan Wang, Meijin Liu, Fuzhi Huang, Tongle Bu, Taishan Wang, Yi-Bing Cheng, Xiao Gong, Jie Zhong, Peng Liu, Xi Yao* and Xiujian Zhao, Improved air stability of perovskite hybrid solar cells via blending poly(dimethylsiloxane)–urea copolymers, J. Mater. Chem. A, 2017, 5, 5486-5494.
14.Xiao Li Zhang*, Wenchao Huang, Anna Gu, Wanchun Xiang*, Fuzhi Huang, Zheng Xiao Guo, Yi-Bing Cheng and Leone Spiccia, High efficiency solid-state dye-sensitized solar cells using a cobalt(II/III) redox mediator, J. Mater. Chem. C, 2017, 5, 4875-4883.
13.Anna Gu, Wanchun Xiang*, Taishan Wang, Shaoxuan Gu, Xiujian Zhao, Enhance photovoltaic performance of tris(2,2’-bipyridine) cobalt(II)/(III) based dye-sensitized solar cells via modifying TiO2 surface with metalorganic frameworks, Solar Energy, 2017, 147, 126–132.
12.Huangzheng Liu, Wanchun Xiang*, Haizheng Tao*, Probing the influence of lithium cation as electrolyte additive for the improved performance of p-type aqueous dye sensitized solar cells, J. Photochem. Photobio. A: Chemistry, 2017, 344, 199-205.
11.Wanchun Xiang,* Joshua Marlow, Peter Bauerle, Udo Bach and Leone Spiccia*, Aqueous p-type dye-sensitized solar cells based on the tris(1,2- diaminoethane) cobalt(II)/(III) redox mediator, Green Chem. 2016, 18, 6659-6665.
10.Wanchun Xiang, Dehong Chen, Rachel A. Caruso, Yi-Bing Cheng, Udo Bach and Leone Spiccia, The Effect of the Scattering Layer in Dye-Sensitized Solar Cells Employing a Cobalt-Based Aqueous Gel Electrolyte, ChemSusChem, 2015, 8, 3704-3711.
9.Cunku Dong, Wanchun Xiang,Fuzhi Huang, Dongchuan Fu, Udo Bach, Yi-Bing Cheng, Xin Li and Leone Spiccia, Angew.Chem. Int. Ed., 2014, 53, 6933-6937
8.Cunku Dong, Wanchun Xiang, Fuzhi Huang, Dongchuan Fu, Wenchao Huang, Udo Bach,Yi-Bing Cheng Leone Spiccia and Xin Li, Nanoscale, 2014, 6, 3704-3711.
7.YangChen, Fuzhi Huang, Wanchun Xiang,Dehong Chen, Lu Cao, Leone Spiccia, Rachel A. Caruso and Yi-Bing Cheng,Nanoscale,, 2014, 6, 13787–13794
6.Wanchun Xiang, Fuzhi Huang, Yi-Bing Cheng, Udo Bach and Leone Spiccia, Aqueous dye-sensitized solar cell electrolytes based on the cobalt(II)/(III) tris(bipyridine) redox couple, Energy Environ. Sci. 2013, 6, 121-127. (封面文章和热点文章)
5.Wanchun Xiang, Akhil Gupta, Muhammad Kalim Kashif, Ante Bilic, Richard A. Evans, Leone Spiccia and Udo Bach, Cyanomethylbenzoic acid: Novel acceptor for the donor-π-acceptor modular organic chromophores for dye-sensitized solar cells, ChemSusChem, 2013, 6, 256-260.
4.Jeremiah Toster, K. Swaminathan Iyer, Wanchun Xiang, Federico Rosei, Leone Spiccia and Colin L. Raston, Nanoscale,2013, 5, 873-876.
3.Yujian Huang, Wanchun Xiang, Xiaowen Zhou, Yuan Lin, Shibi Fang, Electrochimica Acta, 2013, 89, 29-34.
2.Wanchun Xiang, Wenchao Huang, Udo Bach and Leone Spiccia, Stable High Efficiency Dye-Sensitized Solar Cells Based on a Cobalt Polymer Gel Electrolyte, Chem. Commun. 2013, 49, 8997-8999.
1.Wanchun Xiang, Yanyan Fang, Shibi Fang, Yuan Lin, Polymer metal complex as gel electrolyte for quasi-solid state dye-sensitized solar cells, Electrochimica Acta, 2011, 56, 1605-1610.
会议论文:
[1]向万春. 组分调控实现高效稳定钙钛矿太阳能电池的制备[C].2021全国太阳能电池材料器件与技术大会论文集.2021:47.DOI:10.26914/c.cnkihy.2021.008446.
[2]向万春. 组分调控对钙钛矿太阳能电池光电性能的影响[C].第二届全国光电材料与器件学术研讨会摘要集.2021:181.DOI:10.26914/c.cnkihy.2021.007909.
[3]向万春,陈麒,张帆. 一种富勒烯衍生物修饰材料在钙钛矿太阳能电池中的应用[C].第四届新型太阳能电池学术研讨会论文集.2017:225.