PHOTOLUMINESCENCE PROPERTIES OF ZnS：Cu COLLOID

LIU Changhui; SUN Lingdong; LIAO Chunsheng; YAN Chunhua

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PHOTOLUMINESCENCE PROPERTIES OF ZnS：Cu COLLOID

更新时间：2020-08-11

- PHOTOLUMINESCENCE PROPERTIES OF ZnS：Cu COLLOID
- Chinese Journal of Luminescence Vol. 20, Issue 3, Pages: 243-246(1999)
- 作者机构：
  
  北京大学稀土材料化学及应用国家重点实验室北京,100871
- 作者简介：
- 基金信息：
- DOI：
  CLC： O462.3
- Received：31 May 1998，
  
  Published：30 August 1999
- 稿件说明：
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刘昌辉, 孙聆东, 廖春生, 严纯华. ZnS：Cu水溶胶的光致发光研究[J]. 发光学报, 1999,20(3): 243-246

LIU Changhui, SUN Lingdong, LIAO Chunsheng, YAN Chunhua. PHOTOLUMINESCENCE PROPERTIES OF ZnS：Cu COLLOID[J]. Chinese Journal of Luminescence, 1999,20(3): 243-246
刘昌辉, 孙聆东, 廖春生, 严纯华. ZnS：Cu水溶胶的光致发光研究[J]. 发光学报, 1999,20(3): 243-246 DOI：

LIU Changhui, SUN Lingdong, LIAO Chunsheng, YAN Chunhua. PHOTOLUMINESCENCE PROPERTIES OF ZnS：Cu COLLOID[J]. Chinese Journal of Luminescence, 1999,20(3): 243-246 DOI：

摘要

研究了硫脲和硫代硫酸钠体系中ZnS:Cu纳米微粒的光致发光性能随Cu+离子掺杂浓度及生长时间的变化.在325nm的紫外光激发下

ZnS:Cu纳米微粒产生位于500～540nm的宽带发射

掺杂浓度为0.6%时发射达到最强.该发射峰随掺杂浓度的提高和微粒生长时间的延长而红移;当Cu

掺杂浓度为0.2%时

ZnS:Cu纳米微粒还产生一个位于450nm的蓝色发射带

该发射在掺杂浓度更高时被猝灭.硫脲和硫代硫酸钠体系中ZnS:Cu的发光性质较为相似

但后者的发射强度明显高于前者.

Abstract

ZnS:Cu colloid optical properties

which vary with Cu

doping concentration and aging process

were studied in thiourea and thiosulfurate systems.Exited at 325nm

ZnS:Cu colloid gives off a green band emission from 500 to 540nm

and the highest intensity appears in samples with doping concentration about 0.6%.The green emission band presents obvious red-shift as the Cu

doping concentration increases

and it is also red-shift with the increasing reaction time.For the samples doped with 0.2% Cu

a blue emission band at 450nm can also be observed besides the green one

and it will be quenched at higher doping concentration.The optical properties of thiourea and thiosulfurate system are quit similar

but the intensity of the latter is higher than that of the former.

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