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Fabrication of stable organometallic halide perovskite NWs based optoelectronic devices

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Science Bulletin 2017年第9期62卷 645-647页

作者： Aashir Waleed zhiyong fan Department of Electronic and Computer Engineering The Hong Kong University of Science and Technology Hong Kong China

Organometallic halide perovskite materials have triggered global attention in recent years due to their exciting and optimistic high performance energy conversion properties(high luminescence efficiency and tremendous optical absorption ability[1,2]).These interesting photovoltaic properties together make them a promising candidate for high performance optoelectronic

关键词： Fabrication of stable organometallic halide perovskite NWs based optoelectronic devices NH Pb

Recent Progress on Semi-transparent Perovskite Solar Cell for Building-integrated Photovoltaics

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Chemical Research in Chinese Universities 2020年第3期36卷 366-376页

作者： ZHU Yivi SHU Lei fan zhiyong HKLJST-Shenzheti Research Institute Shenzhen 518057P.R.China Department of Electronic and Computer Engineering Hong Kong University of Science and Technology(HKUST)Clear Water BayKowloonHong Kong SARP.R.China

The electricity consumption of buildings is tremendous;moreover,a huge amount of electricity is lost during *** away this consumption can significantly reduce energy demand and greenhouse effect gas *** of the low-cost and renewable solutions to this issue is to install photovoltaic panels on the buildings themselves,namely,building-integrated photovoltaics(BIPVs).Using this technology,power generation roofs,windows,and facades can harvest solar radiation and convert to electricity for building power ***-transparent perovskite solar cells(ST-PSCs)have attracted tremendous attention for the power generation windows,due to the excellent photoelectric properties,versatile fabrication methods,bandgap tunability,and ***,an overview is provided on the recent progress of ST-PSCs for BIPV,which mainly focuses on the control of perovskite morphology,optical engineering for an efficient and semi-transparent *** also summarize recent development on various transparent electrodes and present prospects and challenges for the commercialization of ST-PSCs.

关键词： Building-integrated photovoltaic Semi-transparent solar cell Perovskites solar cell

Recent progress on printable power supply devices and systems with nanomaterials

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Nano Research 2018年第6期11卷 3065-3087页

作者： Yuanjing Lin Yuan Gao fang fang zhiyong fan Department of Electronic and Computer Engineering The Hong Kong University of Science and Technology Hong Kong China Department of Materials Science Fudan University Shanghai 200433 China

In recent years, tremendous research interest has been triggered in the fields of flexible, wearable and miniaturized power supply devices and self-powered energy sources, in which energy harvesting/conversion devices are integrated with energy storage devices into an infinitely self-powered energy system. As opposed to conventional fabrication methods, printing techniques hold promising potency for fabrication of power supply devices with practical scalability and versatility, especially for applications in wearable and portable electronics. To further enhance the performance of the as-fabricated devices, the utilization of nanomaterials is one of the promising strategies, owing to their unique properties. In this review, an overview on the progress of printable strategies to revolutionize the fabrication of power supply devices and integrated system with attractive form factors is provided. The advantages and limitations of the commonly adopted printing techniques for power supply device fabrication are first summarized. Thereafter, the research progress on novel developed printable energy harvesting and conversion devices, including solar cells, nanogenerators and biofuel cells, and the research advances on printable energy storage devices, namely, supercapacitors and rechargeable batteries, are presented, respectively. Although exciting advances on printable material modification, innovative fabrication methods and device performance improvement have been witnessed, there are still several challenges to be addressed to realize fully printable fabrication of integrated self-powered energy sources.

关键词： printing techniques energy conversion energy storage integrated self-powered system

Preface to Special Issue on Advanced Optoelectronic and Electronic Devices toward Future Displays--Celebration of the 10th anniversary of the State Key Laboratory of Advanced Displays and Optoelectronics Technologies at HKUST

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Journal of Semiconductors 2023年第9期44卷 1-2页

作者： Hoi-Sing Kwok zhiyong fan Department of Electronic and Computer Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong SARChina State Key Laboratory of Advanced Displays and Optoelectronics Technologies HKUSTClear Water BayKowloonHong Kong SARChina

This year marks the tenth anniversary of the State Key Laboratory of Advanced Displays and Optoelectronics Technologies(SKLADOT)at the Hong Kong University of Science and Technology(HKUST).The predecessor of SKLADOT w... 详细信息

关键词： ADO Key UST

Estimation of the True Cost of Living Index of food consumption for Chinese urban consumers

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Economic and Political Studies 2018年第4期6卷 417-430页

作者： zhiyong fan Jiayin Song aSchool of Economics Renmin University of ChinaBeijingChina School of International Studies University of International Business and EconomicsBeijingChina

This paper studies the True Cost of Living Index(TCLI)of food consumption for all income groups of urban households in China from 1997 to *** on the Generalised Fechner-Thurstone direct utility function,this paper estimates the TCLI under variable preference assumptions,and also decomposes the total bias of the traditional Laspeyres Price Index(LPI)estimation of TCLI into substitution bias and preference variation *** all income group households,the estimated preference variation bias is found to be quite *** to the finding,when it is necessary to apply the cost of living adjustment clause in any public welfare programmes,the TCLI calculation compatible with preference variation may be more appropriate than the usual Laspeyres Consumer Price Index estimation.

关键词： Consumer Price Index preference variation bias Kon€us cost of living index substitution bias

Surface photovoltage phase spectroscopy study of the photo-induced charge carrier properties of TiO_(2) nanotube arrays

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Science China Chemistry 2012年第2期55卷 229-234页

作者： CHEN LiPing XIE TengFeng WANG DeJun fan zhiyong JIANG TengFei State Key Laboratory of Theoretical and Computational Chemistry College of ChemistryJilin UniversityChangchun 130012China

By using the surface photovoltage (SPV) technique based on a lock-in amplifier, surface states located 3.1 eV below the conduction band of TiO_(2) have been detected in TiO_(2) nanotube arrays prepared by anodization of titanium foil in fluoride-based ethylene glycol solution. The photo-induced charge transportation behavior of TiO_(2) nanotube arrays was also studied by quali- tatively analyzing their SPV phase spectra measured under different external bias. When a negative bias was applied, carriers excited from surface states have the same transportation properties as those excited from the valence band; in contrast, when a positive bias was applied, these two kinds of photo-excited carriers exhibit different transportation behavior..

关键词： surface photovoltage phase spectra TiO_(2) nanotube arrays surface state charge carrier property

Research on Psychological Carrying Capacity of Tourism Destination

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Chinese Journal of Population,Resources and Environment 2009年第1期7卷 47-50页

作者： fan zhiyong Zhong Sheng School of Economics and Management Wuhan University Wuhan Hubei 430072 China

As a part of the carrying capacity system of tourism destination, tourism psychological carrying capacity and its makeup are very important indexes which reflect the harmoni-ous development of tourism destination develops harmoniously, but the academy has not paid enough attention to them. Based on the concept and connotation of psychological carrying ca-pacity, this paper explains the influencing factors which affect the psychological capacity of the tourist and the resident after the acknowledged concept, and then designs a harmonious de-velopment model of tourism destination. Finally, it offers some countermeasures against the overloading psychological capac-ity.

关键词： psychological capacity harmony tourism destination overloading

A dual-mode image sensor using an all-inorganic perovskite nanowire array for standard and neuromorphic imaging

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Journal of Semiconductors 2023年第9期44卷 75-82页

作者： Zhenghao Long Yucheng Ding Xiao Qiu Yu Zhou Shivam Kumar zhiyong fan Department of Electronic and Computer Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong SARChina State Key Laboratory of Advanced Displays and Optoelectronics Technologies HKUSTClear Water BayKowloonHong Kong SARChina Department of Chemical and Biological Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong SARChina Shanghai Artificial Intelligence Laboratory Shanghai 200232China

The high-density,vertically aligned retinal neuron array provides effective vision,a feature we aim to replicate with electronic ***,the conventional complementary metal-oxide-semiconductor(CMOS)image sensor,based on separate designs for sensing,memory,and processing units,limits its integration ***,redundant signal communication significantly increases energy *** neuromorphic devices integrating sensing and signal processing show promise in various computer vision applications,but there is still a need for frame-based imaging with good *** this study,we developed a dual-mode image sensor based on a high-density all-inorganic perovskite nanowire *** device can switch between frame-based standard imaging mode and neuromorphic imaging mode by applying different *** unique bias-dependent photo response is based on a well-designed energy band *** biomimetic alignment of nanowires ensures the potential for high-resolution *** further demonstrate the imaging ability,we conducted pattern reconstruction in both modes with a 10×10 crossbar *** study introduces a novel image sensor with high compatibility and efficiency,suitable for various applications including computer vision,surveillance,and robotics.

关键词： mode image inorganic

Current progress in developing metal oxide nanoarrays-based photoanodes for photoelectrochemical water splitting

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Science Bulletin 2019年第18期64卷 1348-1380页

作者： Yongcai Qiu Zhenghui Pan Haining Chen Daiqi Ye Lin Guo zhiyong fan Shihe Yang Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control School of Environment and EnergySouth China University of TechnologyGuangzhou 510006China State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640China Department of Materials Science and Engineering National University of SingaporeSingapore 117574Singapore School of Materials Science and Engineering Beihang UniversityBeijing 100191China School of Chemistry and Environment Beihang UniversityBeijing 100191China Department of Electronic and Computer Engineering The Hong Kong University of Science and TechnologyHong KongChina Department of Chemistry The Hong Kong University of Science and TechnologyHong KongChina Guangdong Key Lab of Nano-Micro Material Research School of Chemical Biology and Biotechnology Shenzhen Graduate SchoolPeking UniversityShenzhen 518055China

Solar energy driven photoelectrochemical(PEC) water splitting is a clean and powerful approach for renewable hydrogen production. The design and construction of metal oxide based nanoarray photoanodes is one of the promising strategies to make the continuous breakthroughs in solar to hydrogen conversion efficiency of PEC cells owing to their owned several advantages including enhanced reactive surface at the electrode/electrolyte interface, improved light absorption capability, increased charge separation efficiency and direct electron transport pathways. In this Review, we first introduce the structure,work principle and their relevant efficiency calculations of a PEC cell. We then give a summary of the state-of the-art research in the preparation strategies and growth mechanism for the metal oxide based nanoarrays, and some details about the performances of metal oxide based nanoarray photoanodes for PEC water splitting. Finally, we discuss key aspects which should be addressed in continued work on realizing high-efficiency metal oxide based nanoarray photoanodes for PEC solar water splitting systems.

关键词： Photoelectrochemical water splitting Metal oxide based nanoarray photoanodes Preparation strategies and growth mechanism