Báo cáo hóa học: " Microwave-assisted synthesis of water-dispersed CdTe/CdSe core/shell type II quantum dots" pdf

... Colloidal III-V semiconductor nanocrystal quantum dots [NQDs] have attracted interest because they have reduced toxicity compared with II- VI compounds. However, the study and application of III-V ... application of III-V semiconductor nanocrystals are limited by the difficulty in their synthesis. It is very difficult to obtain a controllable nucleation because the molecular bond...

Ngày tải lên: 21/06/2014, 17:20

... Colloidal III-V semiconductor nanocrystal quantum dots [NQDs] have attracted interest because they have reduced toxicity compared with II- VI compounds. However, the study and application of III-V ... that of most II- VI semiconductor nanocrystals. Typical synthetic approaches for III-V nanocrystal quantum dots [NQDs] in a coordinating solvent are adaptations of the method...

Ngày tải lên: 20/06/2014, 20:20

... properties of InGaAs/GaAs quantum dots. J Cryst Growth 1998, 195:540-545. 15. Leon R, Kim Y, Jagadish C, Gal M, Zou J, Cockayne DJH: Effects of interdiffusion on the luminescence of InGaAs/GaAs quantum ... because of the perceived inferiority due to the presence of misfit dislocations (MDs) at the InGaAs/ GaAs heterointerface [22] and partly because the full expl anation of th...

Ngày tải lên: 21/06/2014, 01:20

... histogram of the QD height of sample A; (c) AFM and (d) histogram of the QD height of sample B; (e) AFM and (f) histogram of the QD height of sample C; (g) AFM of sample D; (h) AFM of sample ... had a density of 5.2 9 10 9 cm -2 , a lateral size of (80.0 ± 8.6) nm and an average height of (14.7 ± 1.0) nm. The smaller QDs had a density of 4.0 9 10 8 cm -2 , a lateral si...

Ngày tải lên: 22/06/2014, 19:20

... Correspondence: gjfang@whu.edu.cn Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, Department of Electronic Science and Technology, School of Physics and Technology, Wuhan University, ... conductivity (s) and morphology of the AZO nanostructures can be readily controlled. The effect of s and morphology of the AZO nanostructures on the performan...

Ngày tải lên: 20/06/2014, 22:20

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Ngày tải lên: 20/06/2014, 23:20

... nanostructure of the MnO 2 layer. A highly porous MnO 2 layer composed of interconnected nanoflakes is introduced in the present study instead of a dense MnO 2 layer composed of closely packed ... MnO 2 nanoflakes of pure MnO 2 microspheres, these MnO 2 nanoflakes grown on CNTs are much smaller in dimension, typically with a thickness of less than 5 nm. The formation mec...

Ngày tải lên: 20/06/2014, 23:20

... optics [2,3]. For the existence of the size effect of ferroelectricity and the potential application of bottom-up assembled novel nanostructures, the synthesis of ultrafine BaTiO 3 nano- particles ... generalized synthesis of oxide nanoparticles. J Am Chem Soc 2001, 123:12085-12086. 8. Urban JJ, Yun WS, Gu Q, Park HK: Synthesis of single-crystalline perovskite nanowires comp...

Ngày tải lên: 21/06/2014, 01:20

... Process of Ministry of Education and School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Wuhan, 430073, P. R. China 2 Key Laboratory of Catalysis and Materials Science of ... of Ministry of Education and School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Wuhan, 430073, P. R. China Full list of author information is ava...

Ngày tải lên: 21/06/2014, 06:20

... setup for the synthesis of aligned CNTs. Figure 2 SEM micrographs of the as-grown ACNTs at 825°C. (a, b) The Cross-sectional view of the dense block of the CNTs. The complete block of ACNTs’ side-view ... diameter in the range of 15-30 nm. The present technique gives higher yield and high density of bundles of CNTs. Graphitiza- tion of these CNTs is fairly good, and the pr...

Ngày tải lên: 21/06/2014, 06:20