scholarly journals Multichannel Discriminative Detection of Explosive Vapors with an Array of Nanofibrous Membranes Loaded with Quantum Dots

Sensors ◽  
2017 ◽  
Vol 17 (11) ◽  
pp. 2676 ◽  
Author(s):  
Zhaofeng Wu ◽  
Haiming Duan ◽  
Zhijun Li ◽  
Jixi Guo ◽  
Furu Zhong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Nanofibrous Membranes

Carbon Quantum Dots–Europium(III) Energy Transfer Architecture Embedded in Electrospun Nanofibrous Membranes for Fingerprint Security and Document Counterspy

2019 ◽  
Vol 91 (17) ◽  
pp. 11185-11191 ◽  
Author(s):  
Rong Sheng Li ◽  
Jia Hui Liu ◽  
Tong Yang ◽  
Peng Fei Gao ◽  
Jian Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Carbon Quantum Dots ◽  
Nanofibrous Membranes

Surface-engineered quantum dots/electrospun nanofibers as a networked fluorescence aptasensing platform toward biomarkers

Nanoscale ◽  
2017 ◽  
Vol 9 (43) ◽  
pp. 17020-17028 ◽  
Author(s):  
Tong Yang ◽  
Peng Hou ◽  
Lin Ling Zheng ◽  
Lei Zhan ◽  
Peng Fei Gao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electrospun Nanofibers ◽  
Nanofibrous Membranes

QD-lit and networked electrospun nanofibrous membranes were employed as an aptasensor to facilely, sensitively and specifically detect biomarkers based on NSET between QDs and AuNPs.

Nanostructure of semiconductor quantum dots in a borosilicate glass matrix by complementary use of HREM and AEM

1990 ◽  
Vol 48 (4) ◽  
pp. 728-729
Author(s):  
M.J. Kim ◽  
L.C. Liu ◽  
S.H. Risbud ◽  
R.W. Carpenter
Keyword(s):  
Quantum Dots ◽  
Borosilicate Glass ◽  
Glass Matrix ◽  
Optical Switching ◽  
Response Times ◽  
Fast Response ◽  
Processing Technique ◽  
Internal Stresses ◽  
Electron Hole ◽  
Spatial Dimensions

When the size of a semiconductor is reduced by an appropriate materials processing technique to a dimension less than about twice the radius of an exciton in the bulk crystal, the band like structure of the semiconductor gives way to discrete molecular orbital electronic states. Clusters of semiconductors in a size regime lower than 2R {where R is the exciton Bohr radius; e.g. 3 nm for CdS and 7.3 nm for CdTe) are called Quantum Dots (QD) because they confine optically excited electron- hole pairs (excitons) in all three spatial dimensions. Structures based on QD are of great interest because of fast response times and non-linearity in optical switching applications.In this paper we report the first HREM analysis of the size and structure of CdTe and CdS QD formed by precipitation from a modified borosilicate glass matrix. The glass melts were quenched by pouring on brass plates, and then annealed to relieve internal stresses. QD precipitate particles were formed during subsequent "striking" heat treatments above the glass crystallization temperature, which was determined by differential thermal analysis.

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