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Highly Luminescent PbS/ZnS Nanoparticles Synthesized by a Microwave Method
Journal of Microwave Power and Electromagnetic Energy ( IF 1.5 ) Pub Date : 2013-01-01 , DOI: 10.1080/08327823.2013.11689848
Thelma Serrano , Alejandro Vazquez , Idalia Gómez

Abstract Nanoparticles with PbS core of 12 nm and shell of approximately 3 nm were synthesized at PbS:ZnS ratios of 1.01:0.1 using Merca Ptopropionic Acid as stabilizing agent. PbS/ZnS nanoparticles present a dramatically increase of Photoluminescence intensity, confirming the confinement of the PbS core by increasing the Quantum Yield from 0.63 to 0.92 by the addition of the ZnS shell. In this case, the synthesis by microwave method allows obtaining nanoparticles with enhanced optical characteristics in shorter reaction time than those of nanoparticles synthesized by colloidal method.

中文翻译:

微波法合成的高发光 PbS/ZnS 纳米粒子

摘要 使用 Merca Ptopropionic Acid 作为稳定剂,以 1.01:0.1 的 PbS:ZnS 比合成了具有 12 nm 的 PbS 核和约 3 nm 的壳的纳米颗粒。PbS/ZnS 纳米颗粒表现出光致发光强度的显着增加,通过添加 ZnS 壳将量子产率从 0.63 增加到 0.92,证实了 PbS 核的限制。在这种情况下,与通过胶体法合成的纳米粒子相比,通过微波法合成的纳米粒子可以在更短的反应时间内获得具有增强光学特性的纳米粒子。
更新日期:2013-01-01
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