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Science China Materials 2018年第10期61卷 1297-1304页

作者： Qing liang Yongsheng Guo Ningsi Zhang Qinfeng Qian Yingfei Hu Jianqiang Hu zhaosheng li Zhigang Zou Collaborative Innovation Center of Advanced Microstructures National Laboratory of Solid State MicrostructuresCollege of Engineering and Applied SciencesNanjing UniversityNanjing 210093China Jiangsu Key Laboratory for Nano Technology Department of PhysicsNanjing UniversityNanjing 210093China

CuW（1-x）MoxO4 solid solution of CuWO4 and CuMoO4, which is a copper-based multi-component oxide semiconductor, possesses much narrower band gap than CuWO4. In theory, it can absorb a larger part of the visible spectrum, widening the use of solar spectroscopy and obtaining a higher photo-to-chemical conversion efficiency. In this study, CuW（1-x）MoxO4 thin-film photoanodes on conducting glass were prepared using a simple and low-cost spray pyrolysis method. The resulting CuW（1-x）MoxO4 photoanodes perform higher photocurrent than CuWO4 photoanodes under AM 1.5 G simulated sunlight illumination（100 m W cm^（-2））in 0.1 mol L^（-1） phosphate buffer at pH 7. Combined with IPCE and Mott-Schottky analysis, the enhancement of the photocurrent is due to the improvement of photon utilization and the increase of carrier concentration with the incorporation of Mo atoms. Moreover, with the optimal Mo/W atomic ratio,the photocurrent density increases obviously from 0.07 to 0.46 m A cm^（-2） at 1.23 V（RHE） bias. In addition, compared with particle-assembled thin-film photoanodes prepared by solidphase reaction and drop-necking treatment, the photoanodes prepared by spray pyrolysis have obvious advantages in terms of reducing resistance and facilitating charge transport.

关键词： CuWO4 CuW(1-x)MoxO4 photoelectrochemical watersplitting photoanode

Electrochemical creation of surface charge transfer channels on photoanodes for efficient solar water splitting

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Chinese Journal of Catalysis 2022年第9期43卷 2342-2353页

作者： Zhiwei li Huiting Huang Wenjun Luo Yingfei Hu Rongli Fan Zhi Zhu Jun Wang Jianyong Feng zhaosheng li Zhigang Zou Collaborative Innovation Center of Advanced Microstructures National Laboratory of Solid State MicrostructuresCollege of Engineering and Applied SciencesNanjing UniversityNanjing210093JiangsuChina School of Physics Nanjing UniversityNanjing 210093JiangsuChina

Electrochemical treatment is a popular and efficient method for improving the photoelectrochemical performance of water‐splitting *** our previous study,the electrochemical activation of Mo‐doped BiVO_(4) electrodes was ascribed to the removal of MoO_(x) segregations,which are considered to be surface recombination centers for photoinduced electrons and ***,this proposed mechanism cannot explain why activated Mo‐doped BiVO_(4) electrodes gradually lose their activity when exposed to *** this study,based on various characterizations,it is suggested that electrochemical treatment not only removes partial MoO_(x) segregations but also initiates the formation of H_(y)MoO_(x) surface defects,which provide charge transfer channels for photogenerated *** charge separation of the Mo‐doped BiVO_(4) electrode was significantly enhanced by these charge transfer *** study offers a new insight into the electrochemical activation of Mo‐doped BiVO_(4) photoanodes,and the new concept of surface charge transfer channels,a long overlooked factor,will be valuable for the development of other(photo)electrocatalytic systems.

关键词： Solar water splitting Photoelectrochemical cell Electrochemical treatment Charge transfer channel Mo-doped BiVO4

Sol-gel synthesis of highly reproducible WO3 photoanodes for solar water oxidation

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Science China Materials 2020年第11期63卷 2261-2271页

作者： Jianyong Feng Xin Zhao Bowei Zhang Guang Yang Qinfeng Qian Su Su Khine Ma Zhong Chen zhaosheng li Yizhong Huang School of Materials Science and Engineering Nanyang Technological UniversitySingapore 639798Singapore Collaborative Innovation Center of Advanced Microstructures National Laboratory of Solid State MicrostructuresCollege of Engineering and Applied SciencesNanjing UniversityNanjing 210093China

Although monoclinic WO3 is widely studied as a prototypical photoanode material for solar water splitting,limited success,hitherto,in fabricating WO3 photoanodes that simultaneously demonstrate high efficiency and reproducibility has been *** difficulty in controlling both the efficiency and reproducibility is derived from the ever-changing structures/compositions and chemical environments of the precursors,such as peroxytungstic acid and freshly prepared tungstic acid,which render the fabrication processes of the WO3 photoanodes particularly ***,a highly reproducible sol-gel process was developed to establish efficient and translucent WO3 photoanodes using a chemically stable ammonium metatungstate *** standard simulated sunlight of air mass 1.5 G,100 m W cm-2,the WO3 photoanode delivered photocurrent densities of ca.2.05 and2.25 m A cm^-2at 1.23 V versus the reversible hydrogen electrode(RHE),when tested in 1 mol L^-1H2SO4 and CH3SO3H,***,the WO3 photoanodes fabricated herein are one of the WO3 photoanodes with the highest performance ever *** reproducibility of the fabrication scheme was evaluated by testing 50 randomly selected WO3 samples in1 mol L^-1H2SO4,which yielded an average photocurrent density of 1.8 m A cm^-2at 1.23 VRHEwith a small standard ***,the effectiveness of the ammonium metatungstate precursor solution was maintained for at least 3weeks,when compared with the associated upper-limit values of peroxytungstic and tungstic acid-based precursors after 3 *** study presents a key step to the future development of WO3 photoanodes for efficient solar water splitting.

关键词： solar water splitting WO3 photoanode sol-gel process photoelectrochemical cell

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探索优化光电极中载流子传输的策略

中国材料进展 2017年第1期36卷 33-39页

作者：黄辉庭李朝升邹志刚南京大学现代工程与应用科学学院江苏南京210093

将太阳能转化成氢能来发展氢能源经济是人类社会可持续发展的必由之路。光电化学分解水制氢是太阳能-氢能转换中具有重要应用前景的技术。经过近50年的发展,光电化学分解水制氢技术遇到了瓶颈,主要是缺乏高效稳定的光电极。近年来,通过... 详细信息

将太阳能转化成氢能来发展氢能源经济是人类社会可持续发展的必由之路。光电化学分解水制氢是太阳能-氢能转换中具有重要应用前景的技术。经过近50年的发展,光电化学分解水制氢技术遇到了瓶颈,主要是缺乏高效稳定的光电极。近年来,通过沉积TiO x保护层的策略,部分光电极的稳定性得到了显著提升,因此,提高光电极的太阳能-氢能转换效率成为一项愈加重要的任务。其中,改善光电极载流子传输能够有效地提高太阳能-氢能转换效率。着重讨论了几种改善光电极中载流子传输的策略:制备有利于载流子扩散和迁移的纳米结构;通过掺杂提高材料的导电性;通过制备工艺的优化减少阻碍载流子传输的缺陷;构建半导体结;使用与材料多子输运匹配的导电衬底或引入少子阻隔层等。

关键词：光电极太阳能水分解太阳能-氢能转换效率载流子传输

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贵州毕节元山村彝族更换祖灵筒仪式调查研究

宗教学研究 2023年第4期 121-130页

作者：李兆生马锦卫西南民族大学民族学与社会学学院

祖灵筒是彝族用以盛装“祖先灵魂”及其生活用品的竹筒,而更换祖灵筒是生者为免受祖灵影响所举行的仪式。文章基于对元山村彝族更换祖灵筒仪式的田野考察,较为完整地展示了仪式活动的全部过程,认为元山村彝族的宗教观念仍然保持着原始... 详细信息

祖灵筒是彝族用以盛装“祖先灵魂”及其生活用品的竹筒,而更换祖灵筒是生者为免受祖灵影响所举行的仪式。文章基于对元山村彝族更换祖灵筒仪式的田野考察,较为完整地展示了仪式活动的全部过程,认为元山村彝族的宗教观念仍然保持着原始宗教的基本特征。更换祖灵筒仪式体现出元山村彝族浓厚的祖先崇拜,在心理调适、促进族群认同和人际关系整合方面具有重要功能。

关键词：祖灵筒彝族社会祖先崇拜社会功能祖灵信仰

维普期刊数据库博看期刊

Scientific objectives of the Hot Universe Baryon Surveyor(HUBS) mission

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Science China(Physics,Mechanics & Astronomy) 2023年第9期66卷 134-178页

作者： Joel Bregman Renyue Cen Yang Chen Wei Cui Taotao Fang Fulai Guo Edmund Hodges-Kluck Rui Huang Luis C.Ho li Ji Suoqing Ji Xi Kang Xiaoyu Lai Hui li Jiangtao li Miao li Xiangdong li Yuan li zhaosheng li Guiyun liang Helei liu Wenhao liu Fangjun Lu Junjie Mao Gabriele Ponti Zhijie Qu Chenxi Shan lijing Shao Fangzheng Shi Xinwen Shu Lei Sun Mouyuan Sun Hao Tong Junfeng Wang Junxian Wang Q.Daniel Wang Song Wang Tinggui Wang Weiyang Wang Zhongxiang Wang Dandan Xu Haiguang Xu Heng Xu Renxin Xu Xiaojie Xu Yongquan Xue Hang Yang Feng Yuan Shuinai Zhang Yuning Zhang Zhongli Zhang Yuanyuan Zhao Enping Zhou Ping Zhou Department of Astronomy University of MichiganAnn Arbor MI 48109-1107USA Institute for Astronomy School of PhysicsZhejiang UniversityHangzhou 310027China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China Key Laboratory of Modern Astronomy and Astrophysics Nanjing UniversityNanjing 210023China Department of Astronomy Tsinghua UniversityBeijing 100084China Department of Astronomy Xiamen UniversityXiamen 361005China Astrophysics Division Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China NASA Goddard Space Flight Center Greenbelt MD 20771USA Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China Department of Astronomy School of PhysicsPeking UniversityBeijing 100871China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China Department of Physics and Astronomy Hubei University of EducationWuhan 430205China Department of Physics University of North TexasDenton TX 76203USA Key Laboratory of Stars and Interstellar Medium Xiangtan UniversityXiangtan 411105China CAS Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China School of Physical Science and Technology Xinjiang UniversityUrumuqi 830046China Key Laboratory for Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China INAF-Osservatorio Astronomico di Brera Merate(LC)I-23807Italy Department of Astronomy&Astrophysics the University of ChicagoChicago IL 60637USA School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Department of Physics Anhui Normal UniversityWuhu 241002China School of Physics and Materials Science Guangzhou UniversityGuangzhou 510006China Department of Astronomy University of Science and Technology of ChinaHefei 230026China Depart

The Hot Universe Baryon Surveyor(HUBS) is a proposed space-based X-ray telescope for detecting X-ray emissions from the hot gas content in our universe. With its unprecedented spatially-resolved high-resolution spectroscopy and large field of view,the HUBS mission will be uniquely qualified to measure the physical and chemical properties of the hot gas in the interstellar medium, the circumgalactic medium, the intergalactic medium, and the intracluster medium. These measurements will be valuable for two key scientific goals of HUBS, namely to unravel the AGN and stellar feedback physics that governs the formation and evolution of galaxies, and to probe the baryon budget and multi-phase states from galactic to cosmological scales. In addition to these two goals, the HUBS mission will also help us solve some problems in the fields of galaxy clusters, AGNs, difuse X-ray backgrounds, supernova remnants, and compact objects. This paper discusses the perspective of advancing these fields using the HUBS telescope.

关键词： X-ray telescopes Galactic halo X-ray sources

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沥青混合料冻融损伤特性研究

中国科技论文 2014年第11期9卷 1279-1281页

作者：李兆生谭忆秋哈尔滨工业大学交通科学与工程学院哈尔滨150090

基于Maxwell模型建立了沥青混合料冻融损伤本构方程，以冻融后的劈裂强度作为损伤变量，分析沥青混合料的冻融损伤过程。分析表明，沥青混合料的低温劈裂强度随着冻融循环次数的增加而减小。冻融损伤过程大致分为快速损伤期、稳定损伤... 详细信息

基于Maxwell模型建立了沥青混合料冻融损伤本构方程，以冻融后的劈裂强度作为损伤变量，分析沥青混合料的冻融损伤过程。分析表明，沥青混合料的低温劈裂强度随着冻融循环次数的增加而减小。冻融损伤过程大致分为快速损伤期、稳定损伤期及损伤发展期3个阶段。空隙率大小对沥青混合料的冻融损伤有较大影响。多孔沥青混合料劈裂强度比稳定值约为40％，沥青混凝土劈裂强度比约为70％，在4～8个冻融循环之后达到冻融损伤稳定期。

关键词：沥青混合料冻融循环损伤本构方程

Carrier Mobility Enhancement in (121)-Oriented CsPbBr3 Perovskite Films Induced by the Microstructure Tailoring of PbBr2 Precursor Films

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Carrier Mobility Enhancement in (121)-Oriented CsPbBr3 Perov...

Ultrathin 3D radial tandem‐junction photocathode with a high onset potential of 1.15 V for solar hydrogen production

第八届新型太阳能材料科学与技术学术研讨会

作者： Xiaopeng Han Xin Wang Jianyong Feng Huiting Huang Zhi Zhu Tao Yu zhaosheng li Zhigang Zou National Laboratory of Solid State Microstructures Ecomaterials and Renewable Energy Research Center (ERERC) at School of PhysicsNanjing University

Herein,(121)-oriented Cs PbBr

关键词： oriented CsPbBr3 films PbBr2 precursor films microstructure tailoring carrier mobility enhancement perovskite solar cells

来源： cnki会议评论

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Chinese Journal of Catalysis 2022年第7期43卷 1842-1850页

作者： Shaobo Zhang Huiting Huang Zhijie Zhang Jianyong Feng Zongguang liu Junzhuan Wang Jun Xu zhaosheng li linwei Yu Kunji Chen Zhigang Zou National Laboratory of Solid State Microstructures/School of Electronics Science and Engineering/Collaborative Innovation Center of Advanced Micro‐structures Nanjing UniversityNanjing 210093JiangsuChina College of Engineering and Applied Sciences Nanjing UniversityNanjing 210093JiangsuChina

Combining a progressive tandem junction design with a unique Si nanowire(SiNW)framework paves the way for the development of high‐onset‐potential photocathodes and enhancement of solar hydrogen ***,a radial tandem junction(RTJ)thin film water‐splitting photo‐cathode has been demonstrated experimentally for the first *** photocathode is directly fab‐ricated on vapor‐liquid‐solid‐grown SiNWs and consists of two radially stacked p‐i‐n junctions,featuring hydrogenated amorphous silicon(a‐Si:H)as the outer absorber layer,which absorbs short wavelengths,and hydrogenated amorphous silicon germanium(a‐SiGe:H)as the inner layer,which absorbs long *** randomly distributed SiNW framework enables highly efficient light‐trapping,which facilitates the use of very thin absorber layers of a‐Si:H(~50 nm)and a‐SiGe:H(~40 nm).In a neutral electrolyte(pH=7),the three‐dimensional(3D)RTJ photocathode delivers a high photocurrent onset of 1.15 V *** reversible hydrogen electrode(RHE),accompanied by a photocurrent of 2.98 mA/cm^(2) at 0 V ***,and an overall applied‐bias photon‐to‐current effi‐ciency of 1.72%.These results emphasize the promising role of 3D radial tandem technology in developing a new generation of durable,low‐cost,high‐onset‐potential photocathodes capable of large‐scale implementation。

关键词： Solar hydrogen production 3D radial tandem junction Amorphous silicon photocathode Very thin absorber High onset potential