Preparation of PbS Ultrafine Particles in Different Chemical Micro-Circumstances and Studies on Their Spectra

Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (12): 1597.

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Preparation of PbS Ultrafine Particles in Different Chemical Micro-Circumstances and Studies on Their Spectra

LI Shou-Tian¹, ZOU Bing-Suo¹, ZHANG Yan¹, XIAO Liang-Zhi¹, LI Tie-Jin¹, ZHAO Jia-Long³, HUANG Shi-Hua³, YU Jia-Qi³

1. Department of Chemistry, Jilin University, Changchun, 130023;
2. Changchun Institute of Physics, Chinese Academy of Sciences, Changchun

Received:1992-02-13 Revised:1992-06-30 Online:1992-12-24 Published:1992-12-24

Abstract

Abstract: In this paper we report the preparation of PbS UFP(ultrafine particles)in different surficial chemistry circumstances and the study of their adsorption spectra and their emission and excitation spectra.At room temperature,the quantum size effect,especially,the separated peak structrues of the spectra were observed.The result indicates that the surficial chemistry micro-circumstances greatly influence the optical properties of the ultrafine particles.The PbS UFPmodified by a layer of AOT moiecule has an infrared luminescent band at 1.1 urn and for the PbS UFP modified by a layer of DBS molecule the infrared luminescent band was not observed.

Key words: Ultrafine particles, Quantum size effect, Surficial chemistry micro-circumstance

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LI Shou-Tian, ZOU Bing-Suo, ZHANG Yan, XIAO Liang-Zhi, LI Tie-Jin, ZHAO Jia-Long, HUANG Shi-Hua, YU Jia-Qi. Preparation of PbS Ultrafine Particles in Different Chemical Micro-Circumstances and Studies on Their Spectra[J]. Chem. J. Chinese Universities, 1992, 13(12): 1597.

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Preparation of PbS Ultrafine Particles in Different Chemical Micro-Circumstances and Studies on Their Spectra

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