Fabrication of quantum dots (qds) with emission covering a wide spectral region has been persistently intriguing because of their potentials in a range of practical applications such as biological labeling and imaging, solar cells, light emitting diodes, and next generation displays. in this work, we report the synthesis of cdznse–cdzns core–shell alloy qds through a cu catalyzed solid. Figure 6. photograph image (top) and pl spectra (bottom) of the cdse cds core shell qds and cdznse cdzns core shell alloy − − − − qds showing the full coverage of the visible spectral range from 470 to 650 nm. during the cooling process after the reaction.85 therefore, overall, cu ions act as catalysts in this alloying process.
@article{osti 1504402, title = {cu catalyzed synthesis of cdznse–cdzns alloy quantum dots with highly tunable emission}, author = {yuan, yucheng and zhu, hua and wang, xudong and cui, dingzhou and gao, zehua and su, dong and zhao, jing and chen, ou}, abstractnote = {fabrication of quantum dots (qds) with emission covering a wide spectral region has been persistently intriguing because of. Quantum dots of cdzns alloys have also been prepared using sequential ionic layer adsorption and reaction techniques [18], the non injection one pot approach [19, 20], and the co precipitation. Synthesis of cdznse cdzns alloy qds and nrs in a typical synthesis of cdznse cdzns alloy qds, 10 mg of cdse cds qds (~11.5 nmol for a diameter of 7.7 nm) were loaded into a 50 ml 3 neck flask with a solvent mixture of 2.5 ml ode and 2.5 ml oam. the reaction mixture was degassed under vacuum at room temperature for 1. Cu catalyzed synthesis of cdznse–cdzns alloy quantum dots with highly tunable emission chem. mater. , 31 ( 7 ) ( 2019 ) , pp. 2635 2643 crossref view in scopus google scholar.
Synthesis of cdznse cdzns alloy qds and nrs in a typical synthesis of cdznse cdzns alloy qds, 10 mg of cdse cds qds (~11.5 nmol for a diameter of 7.7 nm) were loaded into a 50 ml 3 neck flask with a solvent mixture of 2.5 ml ode and 2.5 ml oam. the reaction mixture was degassed under vacuum at room temperature for 1. Cu catalyzed synthesis of cdznse–cdzns alloy quantum dots with highly tunable emission chem. mater. , 31 ( 7 ) ( 2019 ) , pp. 2635 2643 crossref view in scopus google scholar. Cu catalyzed synthesis of cdznse–cdzns alloy quantum dots with highly tunable emission y yuan, h zhu, x wang, d cui, z gao, d su, j zhao, o chen chemistry of materials 31 (7), 2635 2643 , 2019. Graphical abstract. in order to reduce the emission linewidth of quantum dots (qds), we inhibited the emission of the light hole (lh) state by controlling core–shell strain and then reduced the exciton phonon coupling (epc) by alloying cations. our asymmetrically strained qd ensemble exhibits highly bright emissions with ultra narrow.
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