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| 1 | The application of perovskite materials in solar water splitting显示文摘Solar water splitting is a promising strategy for sustainable production of renewable hydrogen,and solving the crisis of energy and environment in the world.However,large-scale application of this method is hampered by the efficiency and the expense of the solar water splitting systems.Searching for non-toxic,low-cost,efficient and stable photocatalysts is an important way for solar water splitting.Due to the simplicity of structure and the flexibility of composition,perovskite based photocatalysts have recently attracted widespread attention for application in solar water splitting.In this review,the recent developments of perovskite based photocatalysts for water splitting are summarized.An introduction including the structures and properties of perovskite materials,and the fundamentals of solar water splitting is first provided.Then,it specifically focuses on the strategies for designing and modulating perovskite materials to improve their photocatalytic performance for solar water splitting.The current challenges and perspectives of perovskite materials in solar water splitting are also reviewed.The aim of this review is to summarize recent findings and developments of perovskite based photocatalysts and provide some useful guidance for the future research on the design and development of highly efficient perovskite based photocatalysts and the relevant systems for water splitting. | Yanbin Huang Jun Liu Yanchun Deng Yuanyuan Qian Xiaohao Jia Mengmeng Ma Cheng Yang Kong Liu Zhijie Wang Shengchun Qu Zhanguo Wang | 2020 | Journal of Semiconductors2020，41，1： | 6 |
| 2 | Engineering the photoelectrochemical behaviors of ZnO for efficient solar water splitting显示文摘Solar water splitting is a promising strategy for the sustainable production of renewable hydrogen and solving the world’s crisis of energy and environment.The third-generation direct bandgap semiconductor of zinc oxide(ZnO)with properties of environmental friendliness and high efficiency for various photocatalytic reactions,is a suitable material for photoanodes because of its appropriate band structure,fine surface structure,and high electron mobility.However,practical applications of ZnO are usually limited by its high recombination rate of photogenerated electron–hole pairs,lack of surface reaction force,inadequate visible light response,and intrinsic photocorrosion.Given the lack of review on ZnO’s application in photoelectrochemical(PEC)water splitting,this paper reviews ZnO’s research progress in PEC water splitting.It commences with the basic principle of PEC water splitting and the structure and properties of ZnO.Then,we explicitly describe the related strategies to solve the above problems of ZnO as a photoanode,including morphology control,doping modification,construction of heterostructure,and the piezo-photoelectric enhancement of ZnO.This review aims to comprehensively describe recent findings and developments of ZnO in PEC water splitting and to provide a useful reference for the further application and development of ZnO nanomaterials in highly efficient PEC water splitting. | Mengmeng Ma Yanbin Huang Jun Liu Kong Liu Zhijie Wang Chao Zhao Shengchun Qu Zhanguo Wang | 2020 | Journal of Semiconductors2020，41，9： | 3 |
| 3 | Optical bandgap energy of CH3NH3PbI3 perovskite studied by photoconductivity and reflectance spectroscopy显示文摘Organic-inorganic hybrid perovskite materials have been receiving considerable attention due to their promising applications in many optoelectronic fields. However, the optical bandgap of CH_3NH_3PbI_3 perovskite is still disputed. In order to comprehend the intrinsic characteristics of these materials, we study the near-band-edge optical responses of the solution-processed CH_3NH_3PbI_3 perovskite crystals by photoconductivity and reflectance spectroscopy at room temperature. All these spectra of the CH_3NH_3PbI_3 polycrystals show only one significant absorption edge at 1.58 eV. However, we observe an extra absorption edge at 1.47 eV in CH_3NH_3PbI_3 single crystal. We establish a simple kinetic model of charge annihilation processes to explain why the low-energy structure of the photoconductivity and diffuse reflectance spectra of CH_3NH_3PbI_3 polycrystals disappear, which provides another possibility for understanding the difference in absorption edge. It is noteworthy that this low-energy absorption edge of CH_3NH_3PbI_3 single crystal has, to the best of our knowledge, seldom been reported on organic-inorganic hybrid perovskites.Therefore, the CH_3NH_3PbI_3 single crystal exhibits a relatively wide absorption which makes it a promising candidate for photoelectric applications. | HUANG Wei LIU Yu YUE ShiZhong ZHU LaiPan JIN Peng WU Qing ZHANG Yang QU ShengChun WANG ZhiJie CHEN YongHai | 2018 | Science China(Technological Sciences)2018，61，6： | 3 |
| 4 | Synthesis and structures otmorphology controlled ZnO nano- and microcrystals显示文摘 | Peng Wenqin Qu Shengchun Cong Guangwei | 2006 | Crystal Growth & Design2006，6，6： | 1 |
| 5 | AlzO3:Cr nanotubes synthesized via homogenization precipation followed by heat treatment显示文摘 | Baochang Cheng Shengchun Qu Huiying Zhou | 2006 | The Journal of Physical Chemistry B2006，110，15： | 1 |
| 6 | 显示文摘 | Peng Wenqin Qu Shengchun Cong Guangwei | 2006 | Crystal Growth & Design2006，6，6： | 1 |
| 7 | Recent development in electronic structure tuning of graphitic carbon nitride for highly efficient photocatalysis显示文摘The utilization of solar energy to drive energy conversion and simultaneously realize pollutant degradation via pho-tocatalysis is one of most promising strategies to resolve the global energy and environment issues.During the past decade,graphite carbon nitride(g-C3N4)has attracted dramatically growing attention for solar energy conversion due to its excellent physicochemical properties as a photocatalyst.However,its practical application is still impeded by several limitations and short-comings,such as high recombination rate of charge carriers,low visible-light absorption,etc.As an effective solution,the elec-tronic structure tuning of g-C_(3)N_(4)has been widely adopted.In this context,firstly,the paper critically focuses on the different strategies of electronic structure tuning of g-C_(3)N_(4)like vacancy modification,doping,crystallinity modulation and synthesis of a new molecular structure.And the recent progress is reviewed.Finally,the challenges and future trends are summarized. | Chao Li Jie Li Yanbin Huang Jun Liu Mengmeng Ma Kong Liu Chao Zhao Zhijie Wang Shengchun Qu Lei Zhang Haiyan Han Wenshuang Deng Zhanguo Wang | 2022 | Journal of Semiconductors2022，43，2： | 1 |
| 8 | Optical management in organic photovoltaic devices显示文摘Due to their potentials in light‐weight,flexible,and semitransparent devices,organic photovoltaics are of great significance in the field of renewable energy.However,the narrow intrinsic absorption spectrum of organic materials hinders the full utilization of solar energy.To fabricate a highly efficient opaque solar cell,it is greatly necessary to modify the optical properties of the device to improve light absorption.In addition,the growing interest in building‐integrated photovoltaics drives the development of semitransparent devices.The preparation of semitransparent solar cells with excellent performance imposes high requirements on the high efficiency and appropriate visible light transmittance of effective optical management.In this review,the recent research progress of optical management in organic photovoltaics is reviewed,including the design of light‐absorbing materials,the modification of different layers,adding a lighttrapping structure,and changing the light absorption capabilities of specific materials,so as to provide strategies of how to improve the performance of organic photovoltaic devices and present the prospect of the area. | Cheng Yang Chao Zhao Yang Sun Qicong Li MdRasidul Islam Kong Liu Zhijie Wang Shengchun Qu Zhanguo Wang | 2021 | Carbon Energy2021，3，1： | 1 |
| 9 | Realizing super-long Cu_2O nanowires arrays for high-efficient water splitting applications with a convenient approach显示文摘Nanowire(NW) structures is an alternative candidate for constructing the next generation photoelectrochemical water splitting system, due to the outstanding optical and electrical properties. NW photoelectrodes comparing to traditional semiconductor photoelectrodes shows the comparatively shorter transfer distance of photo-induced carriers and the increase amount of the surface reaction sites, which is beneficial for lowering the recombination probability of charge carriers and improving their photoelectrochemical(PEC) performances. Here, we demonstrate for the first time that super-long Cu_2O NWs, more than 4.5 μm,with highly efficient water splitting performance, were synthesized using a cost-effective anodic alumina oxide(AAO) template method. In comparison with the photocathode with planar Cu_2O films, the photocathode with Cu_2O NWs demonstrates a significant enhancement in photocurrent, from –1.00 to –2.75 mA/cm^2 at –0.8 V versus Ag/AgCl. After optimization of the photoelectrochemical electrode through depositing Pt NPs with atomic layer deposition(ALD) technology on the Cu_2O NWs, the plateau of photocurrent has been enlarged to –7 mA/cm^2 with the external quantum yield up to 34% at 410 nm. This study suggests that the photoelectrode based on Cu_2O NWs is a hopeful system for establishing high-efficiency water splitting system under visible light. | Nasori Nasori Tianyi Dai Xiaohao Jia Agus Rubiyanto Dawei Cao Shengchun Qu Zhanguo Wang Zhijie Wang Yong Lei | 2019 | Journal of Semiconductors2019，40，5： | 1 |
| 10 | Enhancing multifunctional photocatalysis with acetate-assisted cesium doping and unlocking the potential of Z-scheme solar water splitting显示文摘Graphitic carbon nitride(g-C_(3)N_(4))has been extensively doped with alkali metals to enlarge photocatalytic output,in which cesium(Cs)doping is predicted to be the most efficient.Nevertheless,the sluggish diffusion and doping kinetics of precursors with high melting points,along with imprecise regulation,have raised the debate on whether Cs doping could make sense.For this matter,we attempt to confirm the positive effects of Cs doping on multifunctional photocatalysis by first using cesium acetate with the character of easy manipulation.The optimized Csdoped g-C_(3)N_(4)(CCN)shows a 41.6-fold increase in visible-light-driven hydrogen evolution reaction(HER)compared to pure g-C_(3)N_(4) and impressive degradation capability,especially with 77%refractory tetracycline and almost 100%rhodamine B degradedwithin an hour.The penetration ofCs+is demonstrated to be a mode of interlayer doping,and Cs–N bonds(especially with sp^(2) pyridine N in C═N–C),along with robust chemical interaction and electron exchange,are fabricated.This atomic configuration triggers the broadened spectral response,the improved charge migration,and the activated photocatalytic capacity.Furthermore,we evaluate the CCN/cadmium sulfide hybrid as a Z-scheme configuration,promoting the visible HER yield to 9.02 mmol g^(−1) h^(−1),which is the highest ever reported among all CCN systems.This work adds to the rapidly expanding field of manipulation strategies and supports further development of mediating served for photocatalysis. | Mengmeng Ma Jingzhen Li Xiaogang Zhu Kong Liu Kaige Huang Guodong Yuan Shizhong Yue Zhijie Wang Shengchun Qu | 2024 | Carbon Energy2024，6，3： | 0 |
| 11 | Submicrometer optical frequency combs based on SPPs metallic multi-ring resonators显示文摘Optical frequency combs(OFCs)have great potential in communications,especially in dense wavelength-division multiplexing.However,the size of traditional OFCs based on conventional optical microcavities or dispersion fibers is at least tens of micrometers,far larger than that of nanoscale electronic chips.Therefore,reducing the size of OFCs to match electronic chips is of necessity.Here,for the first time to our knowledge,we introduce surface plasmon polaritons(SPPs)to the construction of OFCs to realize a miniature device.The thickness of our device is reduced below 1μm.Though the presence of SPPs may induce ohmic and scattering loss,the threshold of the device is obtained as 9μW,comparable to the conventional device.Interestingly,the response time is 13.2 ps,much faster than the optical counterparts.This work provides a feasible strategy for the miniaturization of OFCs. | ZHITAO HUANG FANGYUAN MA KEQIAN DONG SHIZHONG YUE CHAO LI YULIN WU JUNHUI HUANG XU HAN JIAQIAN SUN ZHAOFENG LI KONG LIU ZHIJIE WANG YONG LEI SHENGCHUN QU ZHANGUO WANG | 2023 | Photonics Research2023，11，12： | 0 |
| 12 | Stress and Strain in Perovskite/Silicon Tandem Solar Cells显示文摘Tandem solar cells based on metal halide perovskites are advancing rapidly during last few years[1–17].The certified power conversion efficiency(PCE)for monolithic perovskite/silicon tandem solar cell reaches 32.5%[18].Since tandem solar cells contain more layers than single-junction solar cells,stress/strain control is an issue during fabrication and further practical operation.The stress can not only affect the stability of the perovskite layer but also change the optoelectronic properties of the films[19–23]. | Kong Liu Zhijie Wang Shengchun Qu Liming Ding | 2023 | Nano-Micro Letters2023，15，4： | 0 |
| 13 | State-of-the-art advances in vacancy defect engineering of graphitic carbon nitride for solar water splitting显示文摘Developing low-cost,efficient,and stable photocatalysts is one of the most promising methods for large-scale solar water splitting.As a metal-free semiconductor material with suitable band gap,graphitic carbon nitride(g-C_(3)N_(4))has attracted attention in the field of photocatalysis,which is mainly attributed to its fascinating physicochemical and photoelectronic properties.However,several inherent limitations and shortcomings—involving high recombination rate of photocarriers,insufficient reaction kinetics,and optical absorption—impede the practical applicability of g-C_(3)N_(4).As an effective strategy,vacancy defect engineering has been widely used for breaking through the current limitations,considering its ability to optimize the electronic structure and surface morphology of g-C_(3)N_(4) to obtain the desired photocatalytic activity.This review summarizes the recent progress of vacancy defect engineered g-C_(3)N_(4) for solar water splitting.The fundamentals of solar water splitting with g-C_(3)N_(4) are discussed first.We then focus on the fabrication strategies and effect of vacancy generated in g-C_(3)N_(4).The advances of vacancy-modified g-C_(3)N_(4) photocatalysts toward solar water splitting are discussed next.Finally,the current challenges and future opportunities of vacancy-modified g-C_(3)N_(4) are summarized.This review aims to provide a theoretical basis and guidance for future research on the design and development of highly efficient defective g-C_(3)N_(4). | Jie Li Kaige Huang Yanbin Huang Yumin Ye Marcin Ziółek Zhijie Wang Shizhong Yue Mengmeng Ma Jun Liu Kong Liu Shengchun Qu Zhi Zhao Yanjun Zhang Zhanguo Wang | 2023 | Journal of Semiconductors2023，44，8： | 0 |
| 14 | Dissociation of singlet excitons dominates photocurrent improvement in high-efficiency non-fullerene organic solar cells显示文摘In organic solar cells,the singlet and triplet excitons dissociate into free charge carriers with different mechanisms due to their opposite spin state.Therefore,the ratio of the singlet and triplet excitons directly affects the photocurrent.Many methods were used to optimize the performance of the low-efficiency solar cell by improving the ratio of triplet excitons,which shows a long diffusion length.Here we observed that in high-efficiency systems,the proportion of singlet excitons under linearly polarized light excitation is higher than that of circularly polarized light.Since the singlet charge transfer state has lower binding energy than the triplet state,it makes a significant contribution to the charge carrier generation and enhancement of the photocurrent.Further,the positive magnetic field effect reflects that singlet excitons dissociation plays a major role in the photocurrent,which is opposite to the case of low-efficiency devices where triplet excitons dominate the photocurrent. | Qicong Li Shizhong Yue Zhitao Huang Chao Li Jiaqian Sun Keqian Dong Zhijie Wang Kong Liu Shengchun Qu Yong Lei | 2024 | Nano Research Energy2024，3，1： | 0 |
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