Article
Chemistry, Inorganic & Nuclear
Vijayaraj Venkatachalam, Sasikala Ganapathy, Thirunavukkarasu Subramani, Ilaiyaraja Perumal
Summary: Aqueous CdTe colloidal quantum dots capped with 3-mercaptoproponic acid were successfully synthesized and characterized. Bioimaging of Artemia sp using CdTe QDs demonstrated the potential for external morphological observation in lower invertebrates.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Applied
Nini Liang, Xuetao Hu, Wenting Li, Yueying Wang, Ziang Guo, Xiaowei Huang, Zhihua Li, Xinai Zhang, Jiukai Zhang, Jianbo Xiao, Xiaobo Zou, Jiyong Shi
Summary: A dual-signal fluorescent sensor was developed for the detection of tetracycline in milk, showing excellent reproducibility and stability. The sensor utilized two types of quantum dots, MoS2 QDs and CdTe QDs, to achieve two fluorescence emission peaks at 433 nm and 573 nm. The sensor demonstrated strong application potential with accurate detection of TET concentration in milk samples.
Article
Chemistry, Physical
Vijayaraj Venkatachalam, Sasikala Ganapathy, N. Priyadarshini, Ilaiyaraja Perumal
Summary: Pristine and indium-doped cadmium telluride quantum dots were synthesized using an aqueous colloidal route. The structural and morphological details were studied using XRD and HRTEM. Increasing the concentration of indium precursor resulted in higher indium doping and smaller particle size. Chloride ions from the precursor controlled the growth of the quantum dots, while 3-MPA acted as a stabilizing agent. The size reduction of the quantum dots led to blue-shifted absorbance and photoluminescence spectra. Mixing the blue-emitting organic fluorophore POPOP with green-emitting CdTe:In and red-emitting CdTe quantum dots resulted in white light emission. The nanocomposite exhibited white light emission with good color properties. The study suggests the potential application of this nanocomposite in white LED and display technology.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Environmental Sciences
Daming Wu, Jie Lu, Ying Ma, Yuna Cao, Ting Zhang
Summary: This study revealed the toxic effects mechanism of mercaptopropionic acid (MPA)-capped CdTe quantum dots (QDs) on mitochondria, showing inhibition of cell proliferation, increased LDH release, generation of reactive oxygen species (ROS), mitochondrial damage, and inhibition of mitochondrial fission and fusion. These findings suggest significant mitochondrial dysfunction induced by MPA-capped CdTe QDs, providing insights into the regulatory mechanisms involved in mitochondrial dysfunction induced by these QDs.
ENVIRONMENTAL POLLUTION
(2021)
Article
Chemistry, Physical
Ali Reza Amani-Ghadim, Mahtab Mousavi, Farzaneh Bayat
Summary: In this study, a novel sensitizer for QDSSCs was developed using CdTe@Dy-doped CdS core/shell quantum dots (QDs) cosensitized with CdSe QDs. The CdTe/CdS type-II core/shell structure QDs exhibited a wide absorption range, fast electron injection, and slower recombination rate.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Applied
Yueying Wang, Wenting Li, Xuetao Hu, Xinai Zhang, Xiaowei Huang, Zhihua Li, Miaoyun Li, Xiaobo Zou, Jiyong Shi
Summary: A ratiometric fluorescence sensor system was proposed for detecting DEHP in pork, using aptamer recognition with MoS2 QDs and CdTe QDs. The system utilizes two signals to transmit response and self-calibration, achieving linear detection of DEHP concentration and successful determination in practical applications.
Article
Chemistry, Analytical
Yiyun Zhang, Wenwen Zhang, Liming Zhang, Guangsan Song, Ningwei Wang, Wanzhen Xu, Weihong Huang
Summary: The imprinted electrochemical sensor based on multi-walled carbon nanotubes shows high efficiency in detecting BPA, with good selectivity and stability. It can detect extremely low concentrations of BPA and has the potential for trace detection in environmental water.
MICROCHEMICAL JOURNAL
(2021)
Article
Optics
V. Agekyan, G. Budkin, M. Chukeev, N. Filosofov, G. Karczewski, A. Serov, A. Reznitsky
Summary: The study investigates the photoluminescence and photoluminescence excitation spectra of CdTe/ZnTe asymmetric double quantum well structures containing different CdTe layer thicknesses and ZnTe spacer thicknesses. It was found that the recombination of hot excitons determined the photoluminescence characteristics of shallow quantum wells, while energy relaxation of hot excitons with LO phonon emission shaped the excitation spectra of shallow quantum wells. The results were well described by the model of charge and energy transfer between quantum wells.
JOURNAL OF LUMINESCENCE
(2021)
Article
Chemistry, Multidisciplinary
Tinghui Wang, Zhe Wang, Shanling Wang, Xiaoqin Chen, Chaoran Luan, Kui Yu
Summary: The formation and isomerization of prenucleation clusters in the prenucleation stage of colloidal semiconductor quantum dots has been investigated. Different precursor compounds and their corresponding magic-size clusters can be obtained by adjusting the reaction temperature and adding substances.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
C. H. Swartz, E. G. LeBlanc, C. Perkins, D. L. McGott, M. O. Reese, A. Nichols, T. H. Myers
Summary: For solar cells based on CdTe, we investigated p-type PbTe and SnTe as ohmic contacts. The results showed that the highest doped PbTe resulted in desirable band alignment with CdTe, leading to improved performance of the CdTe solar cells, primarily from increased fill factor.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Vijayaraj Venkatachalam, Sasikala Ganapathy, Ilaiyaraja Perumal, Santhanapanneer Devendrapandi, Arivarasan Ayyaswamy
Summary: CdTe and Al-doped CdTe colloidal quantum dots were synthesized through an aqueous route, with different sizes obtained by varying refluxing time. The Al-doping led to smaller size and increased bandgap, resulting in blue-shifted absorbance and emission spectra. Fabrication of Gratzel-type QDs-sensitized solar cells showed a marginal increase in photovoltaic efficiency for Al-doped CdTe QDs compared to CdTe QDs.
Article
Biophysics
Shanni Hong, Zhenglin Yang, Quanbing Mou, Yunxia Luan, Bingbo Zhang, Renjun Pei, Yi Lu
Summary: This study presents a fluorescence aptamer sensor that can monitor the rapid leaching kinetics of quantum dots and the concentration of ions in living cells in real time. The sensor shows high specificity and can be used to study the biosafety and cytotoxicity mechanisms of various cadmium-based quantum dots.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Electrochemistry
Emilio Navarrete, Victor Rojas, Mario Romero, J. Roman, G. Caceres, Rodrigo Henriquez, Paula Grez, Ricardo Schrebler, Francisco Herrera, Eduardo C. Munoz
Summary: Cadmium telluride quantum dots (CdTe-QDs) were successfully immobilized on glassy carbon electrodes via electrostatic deposition, with the surface coverage depending on deposition potential and time. The amount of QD layers was determined by tracking the redox process of cadmium through cyclic voltammetry and chronoamperometry, while their characteristics were characterized by scanning electrochemical microscopy (SECM) showing a decrease in the surface conductivity of the GC electrodes.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2021)
Article
Energy & Fuels
Thomas Fiducia, Ashley Howkins, Ali Abbas, Budhika Mendis, Amit Munshi, Kurt Barth, Walajabad Sampath, John Walls
Summary: Cadmium telluride (CdTe) solar cells achieve high efficiencies through passivation of grain boundaries and grain interior defects. The use of selenium alloying in Cd(Se-x,Te1-x) material further improves the passivation effect, providing new possibilities for efficiency improvement and cost reduction in solar electricity.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Energy & Fuels
Benjamin E. Sartor, Jason A. Rohr, Jason Lipton, Joel N. Duenow, Adam Goad, Juan Meng, Matthew O. Reese, Andre D. Taylor
Summary: It is shown that Ti3C2Tx MXene films processed from an aqueous colloidal dispersion can serve as highly efficient hole contact materials for CdTe solar cells, resulting in high power-conversion efficiencies. The role of Schottky barrier formation in Ti3C2Tx-contacted CdTe devices is investigated, and potential pathways for the future development of this material combination are elucidated.
Article
Chemistry, Multidisciplinary
Ji Yang, Ming-Hui Wu, Zheng-Zhong Lin, Zhi-Yong Huang
NEW JOURNAL OF CHEMISTRY
(2018)
Article
Chemistry, Analytical
Shaogui He, Ying Ma, Jieyi Zhou, Jun Zeng, Xiaofang Liu, Zhiyong Huang, Xiaomei Chen, Xi Chen
Article
Chemistry, Analytical
Chen Zhao, Cheng-yi Hong, Zheng-zhong Lin, Xiao-mei Chen, Zhi-Yong Huang
Article
Spectroscopy
Weijie Wang, Shifen Xu, Ning Li, Zhiyong Huang, Bingyuan Su, Xiaomei Chen
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2019)
Article
Chemistry, Applied
Xiang-Xiu Chen, Zheng-Zhong Lin, Cheng-Yi Hong, Qiu-Hong Yao, Zhi-Yong Huang
Article
Environmental Sciences
Ji Yang, Zheng-Zhong Lin, Zhi-Yong Huang
MARINE POLLUTION BULLETIN
(2020)
Article
Chemistry, Analytical
Cheng-Yi Hong, Xiao-Xia Zhang, Chen-Ying Dai, Chen-Yue Wu, Zhi-Yong Huang
ANALYTICA CHIMICA ACTA
(2020)
Article
Food Science & Technology
Yi-Fang Li, Zheng-Zhong Lin, Cheng-Yi Hong, Zhi-Yong Huang
Summary: A facile colorimetric method based on the peroxidase-like activity of (Fe,Co) codoped-CDs was developed for rapid detection of putrescine and cadaverine. The enzymatic hydrolysis by diamine oxidase generated H2O2, which oxidized a substrate with the catalysis of (Fe,Co)-codoped CDs. The method showed high accuracy and sensitivity in detecting the target molecules in various fish samples.
JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION
(2021)
Article
Chemistry, Applied
Yi-Fang Li, Zheng-Zhong Lin, Cheng-Yi Hong, Zhi-Yong Huang
Summary: The study successfully established an ic-ELISA method for rapid detection of histamine using the high peroxidase-like activity of iron-cobalt co-doped carbon dots, which showed accurate, sensitive, and stable results in fish samples.
Article
Chemistry, Multidisciplinary
Chengyi Hong, Dandan Li, Siying Cao, Xin Huang, Hongfen Yang, Dan Yang, Zhiyong Huang, Ren Cai, Weihong Tan
Summary: Excessive intake of nitrite poses a serious risk to human health, making research on the method of detecting nitrite in food highly significant. This study presents a colorimetric method based on iodide-mediated etching of gold nanostars, which offers high selectivity and sensitivity for nitrite determination.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Chengyi Hong, Dandan Li, Ziyue Wang, Boyuan Liu, Wenmin Zhang, Kailong Zhang, Zhiyong Huang
Summary: This study demonstrates a colorimetric approach for the detection of hydrogen sulfide in water samples with high sensitivity. A practical portable device for on-site detection was designed, and a simple colorimetric method based on a smartphone was developed.
ANALYTICAL METHODS
(2022)
Article
Chemistry, Multidisciplinary
Xin Wang, Zheng-Zhong Lin, Cheng-Yi Hong, Zhi-Yong Huang
Summary: A colorimetric method based on the peroxidase-like activity of cobalt-doped graphite phase carbon nitride (Co-doped-g-C3N4) was established for the rapid detection of hypoxanthine (Hx) in aquatic products. The method allows for direct measurement of Hx content with sensitivity, accuracy, and reliability, making it suitable for early determination of freshness in aquatic products.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Chengyi Hong, Lingyan Guan, Lei Huang, Xiaoshan Hong, Zhiyong Huang
Summary: A colorimetric method combining WSe2 nanosheets with peroxidase-like activity and xanthine oxidase (XAO) has been developed for xanthine detection. The method shows a linear response for xanthine detection with high recovery rate from spiked serum samples.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Analytical
Ling-Chen Wang, Cheng-Yi Hong, Zheng-Zhong Lin, Xiao-Mei Chen, Zhi-Yong Huang
ANALYTICAL METHODS
(2020)