Photoluminescence from two-color quantum dot films

被引：0

作者：

Christensen, James ^{[1
]}

Murchland, Madeline ^{[2
]}

Viner, Grace ^{[2
]}

Xi, Haowen ^{[3
]}

Ullrich, Bruno ^{[4
]}

Bhowmick, Mithun ^{[5
]}

机构：

[1] USACE, Construct Engn Res Lab, Champaign, IL 61822 USA

[2] Miami Univ, Dept Geol, Oxford, OH 45056 USA

[3] Bowling Green State Univ, Dept Phys & Astron, Bowling Green, OH 43402 USA

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

[5] Miami Univ, Math & Phys Sci, Oxford, OH 45042 USA

来源：

OPTICAL COMPONENTS AND MATERIALS XIX | 2022年 / 11997卷

关键词：

CdSe; Quantum Dots; PVA; Photoluminescence; polymer;

D O I：

10.1117/12.2606077

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Quantum dots (QD) embedded in polymer matrix are a powerful material system for novel optoelectronic applications. Apart from the typical advantages available from QD systems such as size dependent optical properties and narrow emissions, they can also be used as a future multiplexed sensing device. In this work, we report optical emission from a two-color QD-doped silica and polymer system through photoluminescence measurements. The QD-based thin films could be excited through single wavelength in the visible range, and emitted at two distinct peaks with controllable intensities depending on the ratio of QDs doped into the silica and polymer. The emission increase of the two peaks as a function of excitation intensity was analyzed and compared with more traditional QD films deposited on bulk semiconductor substrates.

引用

页数：8

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