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Chinese Optics Letters 2022年第2期20卷 125-130页

作者： Wei Wang Qinpeng Chen Yifei Zhao Yakun Le Shengda Ye Mang Wan Xiongjian Huang guoping dong State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied TechniquesGuangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and DevicesSchool of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510640China Department of Chemistry City University of Hong KongKowloon 999077Hong KongChina Analytical and Testing Center South China University of TechnologyGuangzhou 510640China School of Physics and Optoelectronics South China University of TechnologyGuangzhou 510640China

With the rapid growth of optical communications traffic,the demand for broadband optical amplifiers continues to *** is necessary to develop a gain medium that covers more optical communication *** precipitated PbS quantum dots(QDs) and Ba F_(2):Tm^(3+) nanocrystals (NCs) in the same glass to form two independent emission *** Ba F_(2)NCs in the glass can provide a crystal field environment with low phonon energy for rare earth (RE) ions and prevent the energy transfer between RE ions and PbS *** adjusting the heat treatment schedule,the emission of the two luminescence centers from PbS QDs and Tm^(3+) ions perfectly splices and covers the ultra-broadband near-infrared emission from 1200 nm to 2000 nm with bandwidth over 430 ***,it is expected to be a promising broadband gain medium for fiber amplifiers.

关键词： PbS quantum dot Tm^(3+) nanocrystal-glass composite broadband near-infrared emission

Controls of strike-slip fault on fractures:Insight from 3D discrete element simulation

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Science China Earth Sciences 2024年第1期67卷 146-164页

作者： Lianbo ZENG Zhe MAO guoping LIU He TIAN Yingtao YAO Kewei ZU Shaoqun dong Mehdi OSTADHASSAN State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing 102249China College of Geosciences China University of Petroleum(Beijing)Beijing 102249China Institute of Energy Peking UniversityBeijing 100871China Exploration and Development Research Institute Zhongyuan Oilfield Branch CompanySINOPECZhengzhou 457001China Northeast Petroleum University Daqing 163318China

The fracture-cave reservoirs controlled by strike-slip faults are the main targets for oil and gas exploration of ultradeep carbonate in the Tarim *** is of great significance to clarify the distribution rules of fractures related to strike-slip faults for guiding the exploration and development of ultra-deep oil and *** this study,six groups of strike-slip fault 3D models based on discrete element numerical simulation method have been created to investigate characteristics of fault-related fracture development and distribution *** addition,we compared the modeling results to the measurement of fractures from the outcrop of a strike-slip fault in the Northern Tarim Basin to verify their *** results show that the stress environment is stable in the simple strike-slip section,and fractures intersecting with the strike-slip direction at a small angle are the principal *** the releasing stepover and double-bend sections,the maximum principal stress changes from horizontal to vertical during the formation of pull-apart zones,where the principal fractures intersect the strike-slip direction at a large *** maximum principal stress in the restraining stepover and double-bend section remains horizontal,but their strikes change significantly with the increment of fault ***,fractures intersecting the strike-slip direction at a small angle will become principal fractures early on,while those parallel to or anti-intersecting the strike-slip direction at a small angle will become principal fractures *** are obvious differences in the development of fractures in different structural positions of strike-slip *** are mainly concentrated in the fault tips,connections,and fault plane,and the magnitude of the fault damage zone is relatively larger in the first *** with fault displacement,the principal damage zone(PDZ)shows stronger control on the distribution and development intensity of *** the in

关键词： Strike-slip fault Fault-related fracture Stepover Double-bend Discrete element method

The recovery of perovskites

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Science Bulletin 2020年第19期65卷 1600-1603页

作者： Xiongjian Huang guoping dong Liming Ding State Key Laboratory of Luminescent Materials and Devices School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510641China Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190China

Recently,metal halide perovskite(MHP)materials have achieved a huge breakthrough in photovoltaic and optoelectronic devices due to their high power conversion efficiency,high photoluminescence(PL)quantum yield,and simple,cost-effective *** a short period,perovskite-based solar cells achieve power conversion efficiency exceeding 25%[1,2],while perovskite-LEDs obtain external quantum efficiency over 21%[3].Nevertheless,the long-term stability of MHP materials and devices is a critical barrier to commercial applications[4].

关键词： perovskite breakthrough exceeding

Synergistic effect of homojunction and Ohmic junctions in CdS boosting spatial charge separation for U(VI)photoreduction

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Nano Research 2024年第8期17卷 6849-6859页

作者： Haonan Pei Zhimin dong Zifan Li Jian Huang Yuanping Jiang Zuojia Li Lin Xu Xiaohong Cao Yunhai Liu Zhibin Zhang guoping Yang State Key Laboratory of Nuclear Resources and Environment East China University of TechnologyNanchang 330013China

Photo-excited holes usually migrate to the surface of the catalyst and rapidly recombine with electrons,reducing the photocatalytic reduction efficiency of uranium(VI)(U(VI))in radioactive ***,we employed a straightforward synthesis technique to meticulously shape and manipulate the morphology of CdS to precisely construct CdS-Ni dandelion-like composites with different aspect ***,the introduction of crystal facet homojunction with Ohmic contacts in this unique morphology siqnificantly improves the photocatalytic ***-dependent photoluminescence spectroscopy(TD-PL)verifies that the composite material positively effects on the dissociation of *** 30 min,CdS(002)/(102)/Ni-4 removed 98% of the uranium content in solution and showed a rather high apparent rate constant(0.114 min^(−1)),which was 4.8 times higher than that of CdS nanospheres(NSs)(0.024 min^(−1))and 3.7 times higher than that of CdS nanorods(NRs)(0.031 min^(−1)).This is much higher the most reported photocatalysts for U(VI)*** after 5 consecutive cycles,the photocatalytic efficiency only decreased by 7%.This offers a fresh perspective on constructing a new perspective for building a green,efficient,and multi mechanism collaborative catalytic system to remediate environmental pollution.

关键词： uranium dandelion-shaped axial size effect crystal facet homojunction ohmic contact

Feeding behavior and hormoligosis associated with imidacloprid resistance in Asian citrus psyllid,Diaphorina citri

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Insect Science 2024年第4期31卷 1211-1221页

作者： Xue dong Chen Justin George Lauren M.Diepenbrock Hunter Gossett guoping Liu Jawwad A.Qureshi Lukasz L.Stelinski Entomology and Nematology Department University of FloridaCitrus Research and Education CenterLake AlfredFloridaUSA Southern Insect Management Research Unit USDA-ARSStonevilleMississippiUSA Entomology and Nematology Department University of FloridaSouthwest Florida Research and Education CenterImmokaleeFloridaUSA

Imidacloprid is a neonicotinoid insecticide used for managing the Asian citrus psyllid,Diaphorina citri Kuwayama,which serves as vector of phytopathogens causing citrus ***,development of resistance to neonicotinoids among populations of *** has coincided with occasional control failures in the *** objectives of this research were to(1)survey current levels of imidacloprid resistance in Florida citrus;(2)compare feeding behavior between imidacloprid-resistant and susceptible *** using electrical penetration graph recordings,and(3)investigate the possible amplification of insecticide hormoligosis associated with *** surveys confirmed that the susceptibility of *** populations to imidacloprid has decreased in commercial Florida citrus groves compared with a laboratory-susceptible *** 12 generations of selection,resistance to imidacloprid increased by 438 fold compared with the susceptible ***-susceptible *** feeding on citrus exhibited significantly more bouts associated with intercellular pathway(C),phloem penetration(D),phloem salivation(E1),and nonprobing(Np)activities than imidacloprid-resistant ***,there were no differences observed in the frequency or duration of phloem ingestion or xylem feeding between susceptible and resistant *** was no statistical difference in fecundity between resistant and susceptible ***,the fecundity of imidacloprid-susceptible female *** treated with a sublethal concentration of imidacloprid(LC_(25))increased significantly compared with controls,while such hormoligosis was less pronounced among imidacloprid-resistant *** results suggest that imidacloprid-resistant psyllids may cease feeding sooner than susceptible counterparts following sublethal exposure to this insecticide,indicative of a behavioral resistance mechanism.

关键词： artificial selection electrical penetration graph feeding behavior hormoligosis insecticide resistance sublethal exposure

Reply to Comment on"Reversible 3D optical data storage and information encryption in photomodulated transparent glass medium

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Light(Science & Applications) 2022年第8期11卷 1935-1936页

作者： Zhen Hu Xiongjian Huang Zhengwen Yang Jianbei Qiu Zhiguo Song Junying Zhang guoping dong College of Materials Science and Engineering Kunming University of Science andTechnology650093 KunmingChina State Key Laboratory of Luminescent Materials and Devices School of Materials Science and EngineeringSouth China University of Technology510640 GuangzhouChina School of Physics Beihang University100191 BeijingChina

Dear Editor,Tungsten-based photochromic materials are well known,suchastungsten-phosphateglasses,tungsten-telluriteglasses,andtungsten-borateglasses'.Photoluminescence glasses exhibit a wide range of application in the fields of display,lighting,laser and optical thermometry,et *** of photochromic and luminescence can extend the application of luminescence *** focus is not on the development of new photochromic materials,but on the control of luminescence through photochromic reaction,especially achieved the real complex threedimensional patterns using laser directly writing technology in photo-modulated transparent *** our work2,the three-dimensional optical data storage and information encryption application of photochromic glass with luminescence was obtained.

关键词： transparent luminescence glasses

Microstructure and Thermal Properties of the GeS_2-In_2S_3-CsI Glasses

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Journal of Wuhan University of Technology(Materials Science) 2006年第1期21卷 106-109页

作者：毛舜赵修建 Key Laboratory of Silicate Materials Science and Engineering(Wuhan University of Technology) Ministry of Education Wuhan 430070 China

The-homogeneous GeS2-In2 S3-CsI glassy samples were prepared by conventional melt-quenching method. When the molar ratio of In2 S3 to Csl remains 1, the non-crystalline region can extend to the composition 0.4GeS2-0.3In2S3-0.3 CsI. And with the addition of CsI, the glass-forming ability of this serial glass reaches its maximum at the composition 0.8GeS2-0.1 In2 S3 -0.1CsI. According to the Raman spectra, the microstructure of these glasses is mainly constituted by [ GeS4 ] and [ InS4-xIx ] tetrahedra, which are interconnected by the bridging sulfur atoms ; meanwhile, the ethane-liked structural units [ S3 Ge-GeS3 ] can be formed because of the lacking of sulfur ; Cs ^＋ ion, which is added from CsI , exists as the nearest neighbor of I-ion in the glassy network.

关键词： chalcohalide glasses microstructure thermal properties

Transparent glassy composites incorporating lead-free anti-perovskite halide nanocrystals enable tunable emission and ultrastable X-ray imaging

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Advanced Photonics 2023年第4期5卷 23-32页

作者： Yakun Le Xiongjian Huang Hao Zhang Zhihao Zhou Dandan Yang Bozhao Yin Xiaofeng Liu Zhiguo Xia Jianrong Qiu Zhongmin Yang guoping dong South China University of Technology School of Materials Science and EngineeringState Key Laboratory of Luminescent Materials and DevicesGuangzhouChina South China University of Technology School of Physics and OptoelectronicsGuangzhouChina Zhejiang University School of Materials Science and EngineeringHangzhouChina Zhejiang University College of Optical Science and EngineeringState Key Laboratory of Modern Optical InstrumentationHangzhouChina

Lead halide perovskite materials exhibit excellent scintillation performance,which,however,suffer from serious stability and toxicity *** contrast,the heavy metal-free anti-perovskite materials[MX_(4)]XA_(3)(A=alkali metal;M=transition metal;X=Cl,Br,I),a class of electron-inverted perovskite derivatives,exhibit robust structural and photophysical ***,we design and prepare a lead-free[MnBr_(4)]BrCs_(3) anti-perovskite nanocrystal(NC)-embedded glass for efficient X-ray-excited luminescence with high-resolution X-ray imaging with a spatial resolution of 19.1 Ip mm^(-1).Due to the unique crystal structure and the protection of the glass matrix,the Cs_(3)MnBr_(5) NC-embedded glass exhibits excellent X-ray irradiation stability,thermal stability,and water *** merits enable the demonstration of real-time and durable X-ray radiography based on the developed glassy *** work could stimulate the research and development of novel metal halide anti-perovskite materials and open a new path for future development in the field of high-resolution and ultrastable X-ray imaging.

关键词： lead-free metal halides anti-perovskite nanocrystals glass ultrastable X-ray imaging

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离子掺杂钙钛矿量子点玻璃研究进展

发光学报 2023年第3期44卷 437-448页

作者：尹博钊黄雄健董国平华南理工大学材料科学与工程学院发光材料与器件国家重点实验室广东广州510641 华南理工大学物理与光电学院广东广州510641

近年来,全无机钙钛矿量子点因其优异的光电性能受到研究者的广泛关注,但其较差的稳定性极大地限制了其应用。利用玻璃优异的稳定性,控制钙钛矿量子点在玻璃中原位析出,使玻璃包覆在钙钛矿量子点周围,隔绝其与外界环境的接触,有效地提高... 详细信息

近年来,全无机钙钛矿量子点因其优异的光电性能受到研究者的广泛关注,但其较差的稳定性极大地限制了其应用。利用玻璃优异的稳定性,控制钙钛矿量子点在玻璃中原位析出,使玻璃包覆在钙钛矿量子点周围,隔绝其与外界环境的接触,有效地提高了其稳定性。通过在钙钛矿量子点玻璃中掺杂特定的离子可以调控钙钛矿量子点的析晶情况和发光峰位,并可引入新的发光中心。本文根据掺杂离子的目的,综合介绍了离子掺杂钙钛矿量子点玻璃的研究进展,为近期关于离子掺杂钙钛矿量子点玻璃的研究提供了思路和参考。

关键词：玻璃钙钛矿量子点离子掺杂

Biallelic Inactivation of hMLH1 by Hypermethylation and Loss of Heterozygosity in Non-Small Cell Lung Cancer

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Chinese Journal of Clinical Oncology 2006年第3期3卷 162-165页

作者： Xin Geng dong Wang guoping Zhu Liang Zhang Weiming Zhang Basic Medical Research Center of Tianjin Medical University Tianjin 300070China.

OBJECTIVE To investigate the mechanism of hMLH1 deregulation in non-small cell lung cancer （NSCLC）. METHODS A genetic and epigenetic study of the hMLH1 gene was performed using surgical primary tumors from 40 NSCLC patients and their corresponding noncancerous tissues. The molecular alterations examined included promoter methylation by Hpa Ⅱ/Msp Ⅰ- based PCR analysis, loss of heterozygosity （LOH） by D3S1621 locus PCR-electrophoresis-silver staining, as well as the loss of protein expression by immunohistochemical analysis. RESULTS The frequencies of hypermethylation, LOH and loss of protein expression of hMLH1 were 67.5% （27/40）, 65% （26/40） and 72.5% （29/ 40）, respectively. Among 26 hMLH1 gene LOH （＋） cases, 21 （80.8%） showed hypermethylation, which was significantly higher than the group of LOH （-）. The frequency of the double inactivation of the hMLH1 gene by hypermethylation and LOH related to a loss of protein expression of 72.4% （21/29）. CONCLUSION Biallelic inactivation of the hMLH1 gene by hypermethylation and LOH most likely will cause loss of hMLH1 protein expression and play an important role in the development of NSCLC. Therefore, controlling and monitoring for hypermethylation of the hMLH1 gene may be partially useful for treatment and early diagnosis of NSCLC.

关键词： hMLH1 NSCLC lung cancer suppressor gene.