Article
Chemistry, Multidisciplinary
Aleksandr A. A. Golovatenko, Ina V. V. Kalitukha, Grigorii S. S. Dimitriev, Victor F. F. Sapega, Maxim V. V. Rakhlin, Aidar I. I. Galimov, Tatiana V. V. Shubina, Elena V. V. Shornikova, Gang Qiang, Dmitri R. R. Yakovlev, Manfred Bayer, Amelie Biermann, Axel Hoffmann, Tangi Aubert, Zeger Hens, Anna V. V. Rodina
Summary: This paper investigates the influence of the crystal structure on the band-edge exciton fine structure in spheroidal CdSe nanocrystals. The study compares zinc blende and wurtzite CdSe nanocrystals using fluorescence line narrowing and time-resolved photoluminescence techniques. The results suggest that the nanocrystal shape and shape dispersion contribute to the energy splitting between bright and dark exciton states in both crystal structures.
Article
Chemistry, Multidisciplinary
Xinke Kong, Lin Ru, Junjun Ge, Yalei Deng, Pan-Ke Zhang, Yuanyuan Wang
Summary: Researchers observed and monitored a ligand-assisted phase transition process from zinc blende to wurtzite in CdSe nanoplatelets. They proposed a new crystal transformation pathway and elucidated a general phase-transition mechanism, which facilitates precise functional nanomaterial design.
Article
Chemistry, Physical
Aliaksandra Radchanka, Varvara Hrybouskaya, Andrey Iodchik, Alexander W. Achtstein, Mikhail Artemyev
Summary: In this study, the researchers found that by varying the surface charged groups on CdSe/ZnS QDs, the zeta-potential can be tuned to control the quantum yield of emission and the recombination dynamics. The presence of zwitterionic surface groups allows for pH tuning of the zeta-potential and quantum yield.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Inorganic & Nuclear
Qianyao Fang, Wuke Wei, Chengcai Wu, Xin Su, Suli Wu
Summary: This study demonstrates a new method for preparing monodisperse ZnS colloidal spheres. By separating the two steps and using a milder sulfur precursor, monodisperse ZnS colloidal spheres have been successfully prepared with finely tuned diameters. The obtained ZnS spheres exhibit size-dependent optical behavior.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Jiakuan Zhang, Chuyue Li, Jiongzhao Li, Xiaogang Peng
Summary: Size- and shape-controlled CdSe/ZnSe core/shell and CdSe/ZnSe/ZnS core/shell/shell nanocrystals with zinc-blende structure are synthesized. The ligand strain between the inorganic crystal surface and organic ligands plays a key role in ZnSe epitaxy. The lattice strain between the CdSe and ZnSe affects the photoluminescence of CdSe/ZnSe/ZnS core/shell/shell QDs.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Ja-Jung Koo, Kwang Hwan Jung, Kyungsu Park, Won Ja Min, Kyu-Sang Yu, Zee Hwan Kim, Jin-Kyu Lee
Summary: In this study, the interfacial structures of CdSe/ZnS QDs were investigated using TOF-MEIS. The results showed the existence of an alloyed layer at the interface between CdSe and ZnS in typical CdSe/ZnS QDs. The dissolution of CdSe seeds during the synthesis steps was identified as the cause of this interfacial alloying, and the ligand environment of the solvent was found to influence the shape of the interface.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Physical
E. Krishnan Vishnu, Anoop Ajaya Kumar Nair, K. George Thomas
Summary: The study investigates the photoluminescence fluctuations in CdSe QDs by varying core size and maintaining constant shell thickness. Increase in core size leads to enhanced detrapping rate and higher photoluminescence efficiency.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Xiaolan Zhou, Chaodan Pu
Summary: Surface reconstruction is used to synthesize nonpolar facets CdSe/CdS core/shell quantum dots with a dodecahedral zinc-blende structure. The successful surface reconstruction is found to be assisted by a proton shuttle.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Jiangzhi Zi, Yueqi Zhong, Zhao Li, Fan Wu, WeiWei Yang, Zichao Lian
Summary: Photoinduced carrier transfer pathways play a role in the optical and electronic properties of nanomaterials for photocatalytic H-2 evolution, while defects in semiconductor nanocrystals can enhance our understanding of photocatalytic mechanisms. CdSe/ZnS HNPLs with anomalous type-I hole transfer exhibit advantages in efficient charge separation and photocatalytic H-2 evolution, compared to type-II CdSe/ZnSe HNPLs and pristine CdSe NPLs. These results elucidate the role of defect-mediated carrier transfer in visible-light-driven photocatalytic H-2 evolution.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Swati Khurana, Md Samim Hassan, Priyesh Yadav, Dibyajyoti Ghosh, Sameer Sapra
Summary: By utilizing bifunctional ligands, researchers synthesized MDNHs of CsPbBr3 nanocrystals and CdSe/CdS/ZnS core/shell/shell nanoplatelets, where 4-ATP exhibited faster charge transfer rate and the highest number of CSS NPLs around CsPbBr3 NCs in the MDNHs.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Materials Science, Ceramics
Alisher Farmonovih Ishankulov, Kadriddin Fakhriddinovich Khalilov, Radik Rashidovich Shamilov, Yuriy Genadievich Galyametdinov, Nurali Kurbonaliyevich Mukhamadiev
Summary: CdSe quantum dots stabilized with oleic acid were synthesized by the colloidal method. By growing a ZnS shell onto the CdSe nanoparticles, CdSe/ZnS core-shell hybrids were obtained with increased luminescence yield. Ligand exchange reactions were carried out, replacing the stabilizer with thiol molecules, leading to a change in the optical properties and a decrease in luminescence intensity.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Satyanarayana Swamy Vyshnava, Gayathri Pandluru, Kanderi Dileep Kumar, Shiva Prasad Panjala, Kameshpandian Paramasivam, Swathi Banapuram, Roja Rani Anupalli, Muralidhara Rao Dowlatabad
Summary: Quantum dots with chemical composition QDCdSe/ZnS_Ni650 were successfully synthesized and characterized using X-ray diffraction (XRD). The ferromagnetic data revealed the magnetic behavior of the QDCdSe/ZnS_Ni650. The optical absorption measurements showed a redshift in band gap compared to bulk CdSe. Additionally, the QDCdSe/ZnS_Ni650 were effectively taken up by cell lines for bioimaging and sorting applications.
Article
Engineering, Electrical & Electronic
Hong Li, Jinxu Jiao, Qi Ye, Zhixin Wu, Donglian Luo, Dehua Xiong
Summary: The successful synthesis of CdSe/ZnS core-shell QDs and the important effects of reaction time and oleic acid dosage on their optical properties were highlighted. Furthermore, highly efficient green QLEDs were fabricated using a rotary coating method on an ITO glass substrate.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Ilya A. Gorbachev, Andrey Smirnov, Evgeny G. Glukhovskoy, Vladimir V. Kolesov, George R. Ivanov, Iren E. Kuznetsova
Summary: The formation process of a Langmuir-Schaefer matrix based on a mixed monolayer of arachidic acid (AA) and 8 nm CdSe/CdS/ZnS quantum dots (QDs) stabilized by trioctylphosphine oxide (TOPO) was investigated. The change in morphology of Langmuir-Blodgett monolayers begins at a QDs and AA molecules ratio of 1:24, leading to the appearance of dendrimeric structures with a thickness of 30-40 nm during LB film deposition process. The information on dependence of morphology of these structures on the molar ratio is crucial for producing ordered 2D nanostructures containing OD and 1D objects with quantum bonds and can be applied in nanoelectronic and optoelectronic devices.
Article
Chemistry, Physical
Ha Trang Nguyen, Thanh Thao Tran, Vishwa Bhatt, Manjeet Kumar, Ju-Hyung Yun
Summary: Hybrid nanostructures composed of quantum dots and metal nanoparticles have unique optical properties, and can be used to control photoluminescence in optoelectronic applications. By controlling the composition and size of the structure, the interaction between excitons and plasmon can be investigated, and the power conversion efficiency of silicon solar cells can be improved.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Physical
Shiyun Lou, Xianbin Jia, Yongqiang Wang, Shaomin Zhou
APPLIED CATALYSIS B-ENVIRONMENTAL
(2015)
Article
Materials Science, Multidisciplinary
Xianbin Jia, Shiyun Lou, Honglei Yuan, Ruijian Yuan, Shasha Tian, Chunyu Niu, Xinjuan Li, Shaomin Zhou
JOURNAL OF MATERIALS CHEMISTRY C
(2015)
Article
Materials Science, Ceramics
Shiyun Lou, Wan Wang, Xianbin Jia, Yongqiang Wang, Shaomin Zhou
CERAMICS INTERNATIONAL
(2016)
Article
Chemistry, Multidisciplinary
Erkang Bian, Yanling Xu, Shiyun Lou, Yunlong Fu, Shaomin Zhou
JOURNAL OF NANOPARTICLE RESEARCH
(2016)
Article
Materials Science, Multidisciplinary
Bingbing Lv, Yingwen Tang, Shiyun Lou, Yanling Xu, Shaomin Zhou
JOURNAL OF MATERIALS CHEMISTRY C
(2016)
Article
Materials Science, Multidisciplinary
Jiafu Zhong, Xiaoyun Yang, Shiyun Lou, Shaomin Zhou
Article
Physics, Applied
GaoMin Li, XiaoBing Tang, ShiYun Lou, ShaoMin Zhou
APPLIED PHYSICS LETTERS
(2014)
Article
Chemistry, Multidisciplinary
Xiaoping Wu, Yongqiang Wang, Shaomin Zhou, Xian You Yuan, Tao Gao, Ke Wang, Shiyun Lou, Yubiao Liu, Xiaojing Shi
CRYSTAL GROWTH & DESIGN
(2013)
Article
Materials Science, Multidisciplinary
Shasha Tian, Shiyun Lou, Shaomin Zhou
Article
Chemistry, Physical
Shiyun Lou, Wan Wang, Lixiang Wang, Shaomin Zhou
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Materials Science, Multidisciplinary
JiaHao Wang, Rui Li, YanLing Xu, Shiyun Lou, ShaoMin Zhou
MATERIALS RESEARCH EXPRESS
(2019)
Article
Chemistry, Multidisciplinary
Jiahao Wang, Xianbin Jia, Shiyun Lou, Guihui Li, Shaomin Zhou
Article
Chemistry, Multidisciplinary
Bingfang Zou, Shiyun Lou, Jie Duan, Shaomin Zhou, Yongqiang Wang
Summary: Magnetic-based microfluidic SERS biosensors have great potential in biological analyses due to their easy manipulation, miniaturization, and ultrasensitivity. However, collecting reliable SERS nanoprobe signals for quantitative analysis is challenging due to the irregular aggregation of magnetic carriers. In this study, magnetic/plasmonic hybrid nanostirrers embedded with a Raman reporter are developed to improve the reliability of microfluidic SERS biosensors. Experimental results showed that SERS signals from the magnetic hybrid nanostirrers could serve as microenvironment beacons, and a signal filtering method was proposed to eliminate the influence of irregular aggregation on the SERS nanoprobe.
Article
Chemistry, Multidisciplinary
Shiyun Lou, Qinglan Chen, Wan Wang, Yongqiang Wang, Shaomin Zhou
Summary: Plasmonic photocatalysts with hollow structures and tunable composition, such as Ag/AgCl microcubes, exhibit high visible-light absorption efficiency and efficient charge separation due to the presence of multiple tiny Ag/AgCl heterojunctions induced by in situ oxidation, resulting in superior visible-light photocatalytic activity.
Article
Astronomy & Astrophysics
Zhou HongLu, Wang JiaHao, Lou ShiYun, Wang HongZhe, Zhou ShaoMin
SCIENTIA SINICA-PHYSICA MECHANICA & ASTRONOMICA
(2019)
Article
Chemistry, Multidisciplinary
Abu Talha Aqueel Ahmed, Sankar Sekar, Shubhangi S. Khadtare, Nurul Taufiqu Rochman, Bathula Chinna, Abu Saad Ansari
Summary: In this study, MnCo2S4 nanosheet catalyst was successfully synthesized and found to exhibit superior performance in hydrogen evolution. Compared to MnCo2S4, MnCo2S4 showed low overpotentials, moderate Tafel slope, and excellent sustainability. The outstanding performance can be attributed to the increased number of electrochemically active sites and enhanced electronic conductivity on the catalyst surface.
Article
Chemistry, Multidisciplinary
Victor V. Maltsev, Elena A. Volkova, Elizaveta V. Koporulina, Diana D. Mitina, Vladimir L. Kosorukov, Anna I. Jiliaeva, Daniil A. Naprasnikov, Konstantin N. Gorbachenya, Viktor E. Kisel
Summary: The phase relationships, crystal properties and luminescence kinetics of two complex systems were studied, including unit cell parameters, segregation coefficients of impurities, and lifetimes of energy levels.
Article
Chemistry, Multidisciplinary
Xiaoman Zhang, Wangwang Xu, W. J. Meng, Andrew C. Meng
Summary: This study successfully grew high-quality single crystal AlScN nanowires through ultra-high vacuum reactive sputtering technique and characterized their structure and properties. The nanowires exhibit significantly reduced mosaic spread and predominantly single ferroelectric domains, as well as a high piezoelectric constant.
Article
Chemistry, Multidisciplinary
Tom E. de Vries, Elias Vlieg, Rene de Gelder
Summary: Networks are important for describing relationships between people, roads between cities, reactions between chemicals, and other interactions. Bipartiteness, dividing the network into two groups, can facilitate the study of the network's structure. We have developed an algorithm that can find a near-optimal bipartisation within a reasonable time frame and used it to uncover the hidden structure of the CSD cocrystal network.
Article
Chemistry, Multidisciplinary
Chuchu Han, Jing Yang, Xin Zhang, Aisen Li, Jiang Peng
Summary: An elastic crystal based on a photo-reactive acylhydrazone derivative is reported, which exhibits reversible bending behavior under UV irradiation and heating. The crystal undergoes reversible E<->Z isomerization under light and heating conditions. The crystal demonstrates excellent elastic properties and the bending can be controlled to control the output direction of red light.
Article
Chemistry, Multidisciplinary
Lingfeng Zhang, Yu Wang, Yefeng Wang, Shuai Liu, Na Zhang, Mingmin Yang, Haixia Ma, Zhaoqi Guo
Summary: This study designs and synthesizes a series of high-energy salts compounds without heavy metal ions and azide groups. The molecular structures and stability of the compounds are confirmed through single-crystal X-ray diffraction and intermolecular interaction analysis. Furthermore, the thermal stability, energetic properties, and electrical initiation properties of the compounds are investigated, suggesting their potential as primary explosives.