Laser-induced synthesis of CaMoO4 nanocolloidal suspension and its optical properties
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- Yoon Jong-Won
- Department of Advanced Materials Science and Engineering, Dankook University
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- Choi Chel-Jong
- School of Semiconductor and Chemical Engineering, Semiconductor Physics Research Center (SPRC), Chonbuk National University
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- Kim Daewon
- Department of Multimedia Engineering, Dankook University
書誌事項
- タイトル別名
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- Laser-Induced Synthesis of CaMoO<SUB>4</SUB> Nanocolloidal Suspension and Its Optical Properties
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Pulsed laser ablation in a liquid phase was employed successfully to synthesize a calcium molybdate (CaMoO4) nanocolloidal suspension. The crystalline phase, particle morphology, particle size distribution, absorbance, optical band-gap and photoluminescence (PL) were examined. Stable colloidal suspensions consisting of well-dispersed CaMoO4 nanoparticles with a narrow size distribution could be obtained without a surfactant. The optical absorption edge located near 270 nm was blue-shifted by approximately 70 nm compared to that reported for bulk crystals. The estimated optical energy band-gap was 4.7 eV and the PL spectrum was blue-shifted at approximately 430 nm compared to the emission of bulk CaMoO4 target (525 nm). The observed band-gap widening and blue-shift of PL emission was attributed to the quantum-size effect due to the very small size of the CaMoO4 nanoparticles prepared by pulsed laser ablation in deionized water.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 52 (4), 768-771, 2011
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204249269760
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- NII論文ID
- 10028175549
- 130004454700
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 11058377
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可