Results 91 to 100 of about 46,577 (299)

Photodetectors based on colloidal QDs [PDF]

, 2007
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2007.Vita.Includes bibliographical references (p. 193-212).Inspired by recent work demonstrating photocurrent enhancement in quantum-dot (QD) solids via post-deposition chemical ...
Oertel, David C. (David Charles)
core  

Dual switchable CRET-induced luminescence of CdSe/ZnS quantum dots (QDs) by the hemin/G-quadruplex-bridged aggregation and deaggregation of two-sized QDs

, 2014
The hemin/G-quadruplex-catalyzed generation of chemiluminescence through the oxidation of luminol by H2O2 stimulates the chemiluminescence resonance energy transfer (CRET) to CdSe/ZnS quantum dots (QDs), resulting in the luminescence of the QDs.
Liu X., Willner I., Willner I, Cecconello A, Hu L., Cecconello A., Liu XQ, Hu LZ   +7 more
core   +1 more source

Green and Scalable Synthesis of Efficient and Stable CsPbBr3 Perovskite Quantum Dots Enables Low‐Threshold Amplified Spontaneous Emission

Advanced Science, EarlyView.
Green and scalable synthesis of CsPbBr3 perovskite quantum dots using bio‐sourced lecithin and hexane enables single‐batch production over 10 grams. Suppressed Auger recombination and electron‐phonon coupling yields 95% PLQY, enhanced stability, and low ASE thresholds of 230.4 (ns) and 50.1 (fs) µJ cm−2 in neat films. ABSTRACT Halide perovskite quantum
Yongfeng Liu, Mengting Zhang, Qingyu Xie, Kehao Hu, Bowen Zhang, Zhe Zhang, Jie Yang, Zhiping Hu, Juan Du, Jia Wang, Min Zhou   +10 more
wiley   +1 more source

Protease‐Triggered Chromogenic Release From Peptide‐Modified Calcium Carbonate Microspheres Enables Colorimetric Detection of Porphyromonas gingivalis Activity

Advanced Science, EarlyView.
We report a chromogenic release‐based assay system with protease‐cleavage peptide‐modified calcium carbonate microspheres for colorimetric detection of Porphyromonas (P.) gingivalis activity. In response to Arg‐specific gingipain secreted by P. gingivalis, the supernatant becomes colored, enabling colorimetric analysis and providing the monitoring of ...
Yuki Hiruta, Zhicheng Jin, Mari Adachi, Lubna Amer, Natalia O. Tjokro, Diego F. Trujillo, Jan Potempa, Anthony J. O'Donoghue, Casey Chen, Jesse V. Jokerst   +9 more
wiley   +1 more source

Enhanced blue emission in silica‐confined mixed‐halide perovskite quantum dots via releasing residual stress

InfoMat
Perovskite quantum dots (QDs) confined within solid matrices via calcination methods exhibit superior environmental stability compared to colloidal perovskite QDs.
Jiayi Huang, Kehao Wang, Peng Wang, Xingliang Dai, Zhizhen Ye, Haiping He, Chao Fan   +6 more
doaj   +1 more source

Efficient and Stable CF3PEAI-Passivated CsPbI3 QDs toward Red LEDs

, 2022
Oleylamine and oleic acid are common organic capping ligands used in the hot injection preparation of perovskite quantum dots (QDs). Their labile nature is responsible for the poor colloidal stability and conductivity that affect the performance of ...
Xin Li (51274), Chengyuan Tang (180440), Xue Bai (129175), Xin Li, Chengyuan Tang, Junhua Hu, William W. Yu, Hongwei Song (1509988), Jinyang Zhu, Xinyu Shen, Junhua Hu (211112), William W. Yu (1454974), Zhenyu Wang, Hongwei Song, Xue Bai, Xinyu Shen (3768658), Zhenyu Wang (580934), Jinyang Zhu (4505530)   +17 more
core   +1 more source

Reversible Exfoliation‐Aggregation Dynamics in Ionic COFs for Tunable Interfacial Catalysis

Advanced Science, EarlyView.
A unique ionic covalent organic framework (I‐4) exhibits unprecedented concentration‐dependent dynamic behavior in water, undergoing reversible transitions between aggregation and exfoliation. This enables fully controllable, bidirectional modulation of its particle size and surface micro‐environment.
Jilu Yang, Xiaofei Zhang, Yue Li, Yuping Cao, Zhaowei Jia, Bo Li, Haitao Feng, Xiaoqiang Cui, Wenwu Qin   +8 more
wiley   +1 more source

Dual Switchable CRET-Induced Luminescence of CdSe/ZnS Quantum Dots (QDs) by the Hemin/G-Quadruplex-Bridged Aggregation and Deaggregation of Two-Sized QDs

, 2016
The hemin/G-quadruplex-catalyzed generation of chemiluminescence through the oxidation of luminol by H2O2 stimulates the chemiluminescence resonance energy transfer (CRET) to CdSe/ZnS quantum dots (QDs), resulting in the luminescence of the QDs.
Alessandro Cecconello (1487224), Xiaoqing Liu (196900), Lianzhe Hu (1443634), Itamar Willner (1273365)   +3 more
core   +1 more source

Unveiling the Uncharted Potential of 2D Materials in Li/Na–S Batteries: A Paradigm Shift From Graphene

Advanced Science, EarlyView.
This review explores emerging 2D materials beyond graphene, including graphdiyne, phosphorene, borophene, siloxene, MBene, antimonene, and germanene for Li/Na–S batteries. It analyzes their roles as sulfur hosts, metallic anode protectors, separators, and electrolyte fillers, emphasizing polysulfide suppression, dendrite inhibition, and interfacial ...
Naveen Kumar T. R, Xuebing Zhu, Yao‐Jie Lei, Lei Zhang, Hua Kun Liu, Weihong Lai, Guoxiu Wang, Yun‐Xiao Wang   +7 more
wiley   +1 more source

TEM image of synthesized CdTe-QDs.

, 2014
TEM image of synthesized CdTe-QDs.
Rong Han (297984), Huize Chen (647385), Yan Gong (103494)   +2 more
core   +1 more source