Optical Properties of PbS Quantum Dots deposited on Glass Employing a Supercritical CO2 Fluid Process

被引：3

作者：

Ullrich, Bruno ^{[1
]}

Wang, Joanna ^{[2
]}

机构：

[1] Ullrich Photon LLC, Manistique, MI 49854 USA

[2] Univ Idaho, Dept Chem, Moscow, ID 83844 USA

来源：

APPLIED SCIENCES-BASEL | 2019年 / 9卷 / 21期

关键词：

PbS; supercritical fluid deposition; temperature dependent; photoluminescence; absorption; ORDERED ARRAYS; NANOPARTICLES; FILMS; SIZE;

D O I：

10.3390/app9214567

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We studied the temperature dependence of the emission and absorption of PbS quantum dots deposited on glass by a supercritical CO2 fluid process. The results show that the emission is ruled by different transitions than the absorption, particularly at cryogenic temperatures. We found indications that these observations can be linked to the PbS concentration used to form the films in conjunction with the capability of the supercritical CO2 method to form dense homogeneous films.

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页数：7

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