Optical Properties of ZnCdS:I Orange and ZnSTe:I White Thin Film Phosphor for High Ra White LED

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概要

• 論文の詳細を見る

• In order to develop visible thin film phosphors, we have for the first time prepared ZnCdS and ZnSTe doped with Iodine (I) using low-pressure MOCVD method. ZnCdS:I, of which Cd composition was calibrated to match the lattice constant to that of substrate and the band gap to absorption peak, showed a orange broad emission consist of yellow near band edge emission and red SA emission. Isoelectronic Te in ZnS indicates strong blue-green emissions, whilst I donor impurity in ZnS shows strong red SA emissions. A typical ZnSTe:I thin film shows two broad emission bands locating at around 500 and 680 nm, respectively, indicating Ra〜90. It was shown that high Ra thin film phosphor can be realized by single material (ZnSTe:I), and that MOCVD method is capable for controlling the thickness and doping profile to obtain uniform white emission pattern.

• 社団法人照明学会の論文

著者

• KURAI Satoshi

  Graduate School of Science and Engineering, Yamaguchi University

• TAGUCHI Tsunemasa

  Graduate School of Science and Engineering, Yamaguchi University

• Kurai Satoshi

  Science And Engineering Yamaguchi University

• Taguchi T

  Department Of Materials Science And Engineering Yamaguchi University

• Kurai Satoshi

  Department Of Electrical And Electronic Engineering Faculty Of Engineering Yamaguchi University

• Kurai Satoshi

  Department Of Electrical And Electronic Engineering Tokushima University

• FUJII Satoshi

  Science and Engineering, Yamaguchi University

• TAGUCHI Tsunemasa

  Science and Engineering, Yamaguchi University

• Taguchi Tsunemasa

  Graduate School Of Science And Engineering Yamaguchi University

• Taguchi Tsunemasa

  Faculty Of Engineering Yamaguchi University

• Yamada Y

  Department Of Electrical And Electronic Engineering Yamaguchi University

• Yamada Y

  Department Of Materials Science And Engineering Yamaguchi University

• SHINOMURA Naohiko

  Department of Materials Science and Engineering, Yamaguchi University

• TASAKI Norio

  Science and Engineering, Yamaguchi University

• SHINOMURA Naohiko

  Science and Engineering, Yamaguchi University

• YAMADA Yoichi

  Science and Engineering, Yamaguchi University

• Tasaki Norio

  Science And Engineering Yamaguchi University

• Shinomura Naohiko

  Department Of Materials Science And Engineering Yamaguchi University

• Yamada Yoichi

  Faculty Of Education Utsunomiya University

• Taguchi Tsunemasa

  Department Of Materials Science And Engineering Yamaguchi University

• Taguchi Tsunemasa

  Science And Engineering Yamaguchi University

• Fujii Satoshi

  Science And Engineering Yamaguchi University

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