Article
Chemistry, Multidisciplinary
Xiling Yang, Yun Li, Peisen Zhang, Lingfei Guo, Xiaoqi Li, Yiyang Shu, Kuiyu Jiang, Yi Hou, Lihong Jing, Mingxia Jiao
Summary: A novel aqueous phase synthetic strategy for Mn2+ doping of ZnS shell grown on Zn-Cu-In-Se core quantum dots (ZCISe@ZnS:Mn QDs) is developed, providing excellent NIR fluorescence and magnetic properties for tumor theranostics. The Mn-doped QDs exhibit enhanced ROS production for efficient photo-assisted ablation of cancer cells upon NIR light irradiation.
Article
Chemistry, Physical
Saleem Al-Maskari, Abey Issac, Srinivasa Rao Varanasi, Richard Hildner, R. G. Sumesh Sofin, A. Ramadan Ibrahim, Osama K. K. Abou-Zied
Summary: The role of quantum confinement and photoluminescence lifetime in semiconductor core/shell quantum dots is investigated through surface modification and photoluminescence quenching. The study reveals that quenching is more pronounced in CIS-dye assemblies compared to InP-dye assemblies, and dynamic quenching is dominant in all QD-dye assemblies. Furthermore, the cationic dye shows a stronger interaction with the QD shell surface than the zwitterionic dye.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Hiroto Takase, Mitsuaki Yamauchi, Hinako Chida, Keiko Tawa, Sadahiro Masuo
Summary: The modification of the photoluminescence behavior of a single colloidal quantum dot has attracted attention. The researchers successfully enhanced the PL intensity of the quantum dot using a one-dimensional plasmonic chip, but had difficulty controlling the emission photon statistics.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Yonglei Sun, Yongchen Wang, Hua Zhu, Na Jin, Adnan Mohammad, Necmi Biyikli, Ou Chen, Kun Chen, Jing Zhao
Summary: Changing the excitation wavelength can modulate the photophysical characteristics of colloidal quantum dots near plasmonic nanostructures. The exact mechanism behind the observed differences in photoluminescence decay when the excitation wavelength is varied is still unclear. This study demonstrates that the photoluminescence decay of a single quantum dot near gold nanoparticles is generally faster when the quantum dot is excited close to the localized surface plasmon resonance of the nanoparticles. This excitation wavelength dependence is mainly caused by the proportion of photons coming from biexciton emission, which is influenced by the local electric field enhancement by the gold nanoparticles.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Haiguang Zhao, Guiju Liu, Shujie You, Franco V. A. Camargo, Margherita Zavelani-Rossi, Xiaohan Wang, Changchun Sun, Bing Liu, Yuanming Zhang, Guangting Han, Alberto Vomiero, Xiao Gong
Summary: The study introduces a novel approach in synthesizing efficient large-area LSCs based on carbon quantum dots, achieving the suppression of reabsorption losses during light collection and demonstrating the potential of C-dots with high quantum yield and a large Stoke shift.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Analytical
Tongtong Li, Yan Zhang, Xiaohong Sun, Yanjin Zhang, Yongan Wang, Zhiyong Nie
Summary: A fluorescent probe was developed for ratiometric detection of thallium ions in mineral water samples by modifying a G-rich aptamer. The probe changes its structure from a random coil to a G-quadruplex upon binding with Tl+, allowing for fluorescence resonance energy transfer between the donor and acceptor moieties. Under optimized conditions, the probe provided satisfactory results with a detection limit of 30.1 μM and a linear concentration range of 10 μM-10 mM.
Article
Optics
Masaki Nakagawa, Yuki Miyata, Naoya Tate, Takahiro Nishimura, Suguru Shimomura, Sho Shirasaka, Jun Tanida, Hideyuki Suzuki
Summary: FRET networks in spatially distributed fluorescent molecules have great potential for information processing and computing applications, but studies on their spatiotemporal behavior are scarce. This study presents a spatiotemporal model for FRET networks and uncovers its characteristic temporal behavior, providing a foundation for future research and applications.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2021)
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)
Review
Chemistry, Physical
Debjit Roy, Zehavit Shapira, Shimon Weiss
Summary: This article reviews the development of single nanoparticle-based inorganic and organic voltage sensors. Inorganic voltage nanosensors utilize the Quantum Confined Stark Effect (QCSE) to sense local electric fields, while organic voltage nanosensors utilize Fluorescence (Forster) Resonance Energy Transfer (FRET). Both sensors have achieved progress in experiments, but the milestone of recording individual action potentials from individual targeted sites has yet to be reached.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Dae Han Wi, Hyunwoo Yang, Yonghyeon Kim, Hojin Ahn, Jong Wook Hong, Sang Woo Han
Summary: In this study, ternary heteronanocrystals composed of two different plasmonic metal nanocrystals (hexoctahedral Au and spherical Ag nanocrystals) and a semiconductor (Cu2O) were synthesized. These ternary heteronanocrystals exhibited enhanced photocatalytic H-2 evolution performance over a wide range of visible-light wavelengths compared to binary and monomeric counterparts. The improved photocatalytic function can be attributed to the combination of the distinct plasmonic properties of the two different metal nanocrystals with the semiconductor, enabling the promotion of both plasmon-induced charge and energy transfer processes.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Siddharth Singh, Diksha Mittal, Vinithra Gurunarayanan, Ankita Sahu, Ramesh Ramapanicker, Vishal Govind Rao
Summary: Efficient charge extraction in lead halide perovskite nanocrystals is investigated using ferrocene-based molecules with different functional groups. It is found that different functional groups have different effects on the photoluminescence and lifetime of the perovskite nanocrystals. In particular, the -NMe2 functional group can passivate the defects on the perovskite surface, improving its photocatalytic performance.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lei Xue, Qing Shen, Tian Zhang, Yibin Fan, Xiaogang Xu, Jinjun Shao, Dongliang Yang, Wenli Zhao, Xiaochen Dong, Xiaozhou Mou
Summary: This study successfully prepared near-infrared light-triggered theranostic nanoparticles that could targeted assembly and effectively destroy multidrug-resistant bacteria through synergistic photothermal and photodynamic therapy.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Biophysics
Xianghan Zhang, Xiaohan Gao, Jialin Zhou, Zhiqing Gao, Yingdi Tang, Zuhong Tian, Pengbo Ning, Yuqiong Xia
Summary: The albumin-based FRET nanoprobe Cy5/7@HSA NPs showed high sensitivity and excellent imaging in cell and tumor imaging, indicating its strong potential as a multileveled tumor imaging platform.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Joao Felicidade, Fabio M. F. Santos, Jesus F. Arteaga, Patricia Remon, Rene Campos-Gonzalez, Ha-Chi Nguyen, Francisco Najera, Francisco Bosca, David Y. W. Ng, Pedro M. P. Gois, Uwe Pischel
Summary: A series of boronic-acid-derived salicylidenehydrazone (BASHY) complexes were synthesized in good yields through a versatile three-component reaction. These complexes exhibit fluorescence switching behavior by photoinduced electron transfer, which can be controlled by the addition of acid. In organic solvent, the fluorescence is observed in the green-to-orange region, while in water under physiological pH conditions, the fluorescence is observed in the red-to-NIR region with appreciable quantum yields and lifetimes. These characteristics make these dyes suitable for fluorescence lifetime imaging of live cells.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
Prajit Kumar Singha, Tanuja Kistwal, Anindya Datta
Summary: Insights into blinking and photoactivation of aqueous copper indium sulfide (CIS) quantum dots were obtained using fluorescence correlation spectroscopy (FCS) and fluorescence lifetime correlation spectroscopy (FLCS). The excitation wavelength-dependence of photoactivation/photocorrosion was found to increase the initial correlation amplitude for lambda ex = 532 nm, but decrease for lambda ex = 405 nm, which can be explained by different contributions from surface-assisted recombination. Blinking times were almost unaffected by shelling for the 100-200 ns lifetime component (core Cu-mediated recombination), but significantly increased for the 10-30 ns lifetime (surface states). The absence of cross-correlation between the two recombinative states of bare CIS QDs and the emergence of an anticorrelation with the introduction of the ZnS shell indicate the diffusive nature of the two states for CIS-ZnS, with diffusion being inhibited in bare CIS QDs due to the preponderance of surface states.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Xiaotong Li, Peijun Guo, Mikael Kepenekian, Ido Hadar, Claudine Katan, Jacky Even, Constantinos C. Stoumpos, Richard D. Schaller, Mercouri G. Kanatzidis
CHEMISTRY OF MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Ioannis Spanopoulos, Ido Hadar, Weijun Ke, Peijun Guo, Siraj Sidhik, Mikael Kepenekian, Jacky Even, Aditya D. Mohite, Richard D. Schaller, Mercouri G. Kanatzidis
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Chemistry, Multidisciplinary
Justin M. Hoffman, Joseph Strzalka, Nathan C. Flanders, Ido Hadar, Shelby A. Cuthriell, Qingteng Zhang, Richard D. Schaller, William R. Dichtel, Lin X. Chen, Mercouri G. Kanatzidis
ADVANCED MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Weijun Ke, Cong Chen, Ioannis Spanopoulos, Lingling Mao, Ido Hadar, Xiaotong Li, Justin M. Hoffman, Zhaoning Song, Yanfa Yan, Mercouri G. Kanatzidis
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Chemistry, Multidisciplinary
Xiaotong Li, Yongping Fu, Laurent Pedesseau, Peijun Guo, Shelby Cuthriell, Ido Hadar, Jacky Even, Claudine Katan, Constantinos C. Stoumpos, Richard D. Schaller, Elad Harel, Mercouri G. Kanatzidis
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Chemistry, Multidisciplinary
Wenwen Lin, Jiangang He, Kyle M. McCall, Constantinos C. Stoumpos, Zhifu Liu, Ido Hadar, Sanjib Das, Hsien-Hau Wang, Bi-Xia Wang, Duck Young Chung, Bruce W. Wessels, Mercouri C. Kanatzidis
Summary: The inorganic halide perovskitoid compound TlPbI3 demonstrates excellent properties such as high density, wide bandgap, low melting point, and high electrical resistivity, making it ideal for high-quality crystal growth and detection of Ag K-alpha X-rays and 122 keV gamma-rays from Co-57 radiation source.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yihui He, Constantinos C. Stoumpos, Ido Hadar, Zhongzhen Luo, Kyle M. McCall, Zhifu Liu, Duck Young Chung, Bruce W. Wessels, Mercouri G. Kanatzidis
Summary: Lead halide perovskite semiconductors exhibit high defect tolerance and can function as high-performance gamma-ray detectors, showing strong potential for nuclear radiation and X-ray detection at room temperature.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Optics
Yihui He, Matthew Petryk, Zhifu Liu, Daniel G. Chica, Ido Hadar, Charles Leak, Weijun Ke, Ioannis Spanopoulos, Wenwen Lin, Duck Young Chung, Bruce W. Wessels, Zhong He, Mercouri G. Kanatzidis
Summary: Halide perovskite semiconductors, specifically CsPbBr3, demonstrate exceptional performance in high-energy gamma-ray detection, with features such as excellent energy resolution, scale-up of crystal volumes, and long lifetime, making them promising candidates for next-generation radiation detectors.
Article
Chemistry, Multidisciplinary
Eugenia S. Vasileiadou, Bin Wang, Ioannis Spanopoulos, Ido Hadar, Alexandra Navrotsky, Mercouri G. Kanatzidis
Summary: This study investigates the thermochemical properties of 2D hybrid organic-inorganic halide perovskites, revealing differences in enthalpy of formation between different series. Additionally, analysis of structural parameters and optical properties provides guiding principles for the targeted design and synthesis of 2D perovskites for efficient solar cell fabrication. Further stability studies on film samples indicate lower extrinsic stability of DJ materials in ambient air.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Ioannis Spanopoulos, Ido Hadar, Weijun Ke, Peijun Guo, Eve M. Mozur, Emily Morgan, Shuxin Wang, Ding Zheng, Suyog Padgaonkar, G. N. Manjunatha Reddy, Emily A. Weiss, Mark C. Hersam, Ram Seshadri, Richard D. Schaller, Mercouri G. Kanatzidis
Summary: Hybrid halide perovskites with engineered defects exhibit tunable optical properties and unexpected strong broad light emission, showcasing the potential of defect engineering in customizing the optical properties of semiconductors.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Eugenia S. Vasileiadou, Ido Hadar, Mikael Kepenekian, Jacky Even, Qing Tu, Christos D. Malliakas, Daniel Friedrich, Ioannis Spanopoulos, Justin M. Hoffman, Vinayak P. Dravid, Mercouri G. Kanatzidis
Summary: Two-dimensional (2D) hybrid lead iodide perovskites have shown great potential as attractive alternatives to 3D MAPbI3 for optoelectronic devices, due to their structural tunability, optoelectronic features, and moisture stability. The stability and properties of multilayer lead bromide perovskites, especially the bilayer lead bromide perovskites, have been systematically studied, revealing promising results for optoelectronic applications. Additionally, the synthesized lead bromide compounds demonstrate specific emission characteristics and enhanced stability in various environmental conditions, surpassing their iodide analogues in some aspects.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Justin M. Hoffman, Christos D. Malliakas, Siraj Sidhik, Ido Hadar, Rebecca McClain, Aditya D. Mohite, Mercouri G. Kanatzidis
Article
Chemistry, Multidisciplinary
Songting Cai, Shiqiang Hao, Zhong-Zhen Luo, Xiang Li, Ido Hadar, Trevor Bailey, Xiaobing Hu, Ctirad Uher, Yan-Yan Hu, Christopher Wolverton, Vinayak P. Dravid, Mercouri G. Kanatzidis
ENERGY & ENVIRONMENTAL SCIENCE
(2020)
Article
Chemistry, Multidisciplinary
Jason F. Khoury, Jiangang He, Jonathan E. Pfluger, Ido Hadar, Mahalingam Balasubramanian, Constantinos C. Stoumpos, Rui Zu, Venkatraman Gopalan, Chris Wolverton, Mercouri G. Kanatzidis
Article
Chemistry, Physical
Yubo Luo, Songting Cai, Shiqiang Hao, Florian Pielnhofer, Ido Hadar, Zhong-Zhen Luo, Jianwei Xu, Chris Wolverton, Vinayak P. Dravid, Arno Pfitzner, Qingyu Yan, Mercouri G. Kanatzidis