THE EFFECT OF Er3+ CONCENTRATION ON ALTERNATING CURRENT ELECTROLUMINESCENCE CHARACTERISTICS OF ZnS:ErF, THIN FILMS | Zendy

Lijian Meng | Zendy; Changhua Li | Zendy; Zhong Guo-Zhu | Zendy

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THE EFFECT OF Er3+ CONCENTRATION ON ALTERNATING CURRENT ELECTROLUMINESCENCE CHARACTERISTICS OF ZnS:ErF, THIN FILMS

Author(s) -

Lijian Meng,

Changhua Li,

Zhong Guo-Zhu

Publication year - 1988

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.37.1619

Subject(s) - materials science , thin film , ion , relaxation (psychology) , electroluminescence , analytical chemistry (journal) , current (fluid) , voltage , nanotechnology , thermodynamics , electrical engineering , chemistry , physics , layer (electronics) , chromatography , psychology , social psychology , organic chemistry , engineering

In this paper, we have studied the effect of Er3+ concentration ACEL characteristics of ZnS:ErF3 thin films. It is shown that I(4F9/2→4I15/2) increase with increasing Er3+ concentration. By studying the EL decay, the ratio of green to red emission vs applied voltage and EL efficiencies of 4F9/2 and 2H11/2+ 4S3/2 energy levels of ZnS:ErF3 thin films with different Er3+ concentration, we find that the increase of I(4F9/2→4I15/2) is due to the cross-relaxation processes occurred between Er3+ ions. The cross-relaxation rate increase with increasing Er3+ concentration, and results in the increase of I(4F9/2→4I15/2).

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