Results 151 to 160 of about 97,641 (314)

Defect Driven Electronic Structure Reconfiguration and Hierarchical Phonon Suppression in Ag2Se Thermoelectrics

Advanced Science, EarlyView.
Indium substitution in Ag2Se nanocrystals simultaneously tailors electronic structure and lattice dynamics. Fermi‐level upshift and band‐gap narrowing enhance electrical transport, while defect‐induced lattice softening intensifies phonon scattering and suppresses lattice thermal conductivity.
Yineng Gou, Mengyao Li, Fang Lyu, Xiaolong Sun, Muyang Huang, Wenhao Xie, Liangwei Hu, Wei Cao, Yue Hou, Yong Liu, Andreu Cabot, Ziyu Wang   +11 more
wiley   +1 more source

Synthesis of Novel Stable ZnSe Magic‐Sized Clusters and Their Direct Transformation to Quantum Dots

Advanced Science, EarlyView.
We have developed a low‐temperature synthetic approach that enables the fabrication of novel ZnSe MSCs with remarkable thermal stability. These stabilized MSCs serve as efficient precursors that can be readily converted to ZnSe QDs under mild conditions through simple introduction of a selenium source.
Bin Song, Zihui Jin, Xuanyu Zhang, Rong‐Jun Xie   +3 more
wiley   +1 more source

Rational Tuning the Optical Properties of Metal Sulfide Nanocrystals and Their Applications

, 2013
This short review provides an overview of recent progress in rational tuning of the optical properties of metal sulfide nanocrystals. Three kinds of tuning strategy are discussed in detail: composition control, doping, and manufacturing heterostructured ...
Wang, QB(王强斌), Shen, SL
core  

Coloring Tetrahedral Semiconductors: Synthesis and Photoluminescence Enhancement of Ternary II-III2-VI4 Colloidal Nanocrystals

Ternary tetrahedral II-III2-VI4 semiconductors—where II is Zn or Cd, III In or Ga, and VI S, Se, or Te—are of interest in UV radiation detectors in medicine and space physics as well as CO2 photoreduction under visible light.
Chen, Yunhua, Rossini, Aaron, Pavel, Md Riad Sarkar, Ochoa-Romero, Kerly, Guirado, Gonzalo, Santhiran, Anuluxan, Miller, Gordon, Vela, Javier, Gi, Eunbyeol   +8 more
core   +3 more sources

Nanocrystals in their prime [PDF]

Nature Nanotechnology, 2014
openaire   +2 more sources

Suppressed Auger Heating of Hot Carriers in Cu‐Doped Colloidal Quantum Wells

Advanced Science, EarlyView.
ABSTRACT Auger heating represents a major bottleneck for hot carrier (HC) relaxation in colloidal quantum wells (CQWs), delaying carrier accumulation in band‐edge states and diminishing performance in light‐emitting applications. To address this issue, we introduce copper doping in CdSe CQWs to create midgap states, which efficiently suppresses Auger ...
Junhong Yu, Ke Wang, Yadong Han, Zhenzhong Lian, Songyan Hou, Hilmi Volkan Demir, Manoj Sharma   +6 more
wiley   +1 more source

Temperature‐Driven Emission Redistribution of Yb2+ in SrB4O7 Enables Highly Sensitive Optical Thermometry Supported by Multiple Linear Regression

Advanced Science, EarlyView.
A novel optical thermometer exploits the rare UV emission of Yb2+ ions in a SrB4O7 host, enabling highly sensitive, non‐contact temperature measurements from 80 to 420 K. The applied multiple linear regression (MLR) analysis results in a multiple increase in the resulting temperature sensitivity.
Fang Zhao, Teng Zheng, Przemysław Woźny, Miguel A. Hernández‐Rodríguez, Shiqing Xu, Inocencio R. Martín, Marcin Runowski   +6 more
wiley   +1 more source

Surface charges and optical characteristic of colloidal cubic SiC nanocrystals

Nanoscale Research Letters, 2011
Colloidal cubic silicon carbide (SiC) nanocrystals with an average diameter of 4.4 nm have been fabricated by anisotropic wet chemical etching of microsized cubic SiC powder.
Chen Changxin, Li Yong, Li Jiang-Tao, Yang Yun, Lin Zhi-Ming   +4 more
doaj  

Heterojunction‐Engineered Mass Spectrometry Platform for Deciphering Serum Metabolic Fingerprints in Diagnosis of Respiratory Diseases

Advanced Science, EarlyView.
Hollow Co3O4/TiO2 heterojunctions are engineered for high‐throughput laser desorption/ionization mass spectrometry. The built‐in electric field drives efficient charge separation and photothermal conversion, while the hierarchical mesoporous network enables robust salt and protein tolerance.
Junyu Chen, Chaoqi Wang, Xi Yu, Yuming Jiang, Yijiao Qu, Huihui Fu, Yuyin Bu, Xiaoyong Zhang, Zongxiu Nie   +8 more
wiley   +1 more source

Evaluation of the efficacy of rutin, rutin nanocrystals, and rutin spanlastics nanoparticles as antitumor and antioxidant drug delivery systems. [PDF]

Discov Nano
Alotaibi BS, El-Masry TA, El-Bouseary MM, El Zahaby EI, Wahsh E, Saleh A, Sultan AM, Alosaimi ME, El-Nagar MMF.   +8 more
europepmc   +1 more source