| Mn^2＋掺杂CdWO4晶体的生长及光谱特性 |
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| 引用本文： | 万云涛,钟月锋,夏海平.Mn^2＋掺杂CdWO4晶体的生长及光谱特性[J].光电子．激光,2011(9):1360-1363. |
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| 作者姓名： | 万云涛 钟月锋 夏海平 |
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| 作者单位： | 宁波大学光电子功能材料重点实验室；;宁波大学光电子功能材料重点实验室；;宁波大学光电子功能材料重点实验室； |
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| 基金项目： | 国家自然科学基金资助项目(50972061);浙江省杰出青年自然科学基金资助项目(R4100364);宁波市自然科学基金资助项目(2009A610007);宁波大学王宽诚幸福基金资助项目 |
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| 摘 要： | 采用坩埚下降法技术,选用CdO∶WO3∶MnO摩尔比为100∶100∶0.5的化学组分配比,在约60℃固液界面温度梯度与0.05 mm/h生长速度条件下,成功地生长出Φ25 mm×100 mm Mn^2＋掺杂CdWO4（Mn^2＋：CWO）单晶。观测了晶体未退火、经空气和O2退火处理后的的吸收、激发和发射光谱。结果表明...
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| 关 键 词： | Mn^2+掺杂CdWO4(Mn^2+：CWO)晶体 坩埚下降法 光谱 退火处理 |
The growth and spectroscopic properties of Mn2+-doped CdWO4 single crystals |
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| WAN Yun-tao,ZHONG Yue-feng and XIA Hai-ping.The growth and spectroscopic properties of Mn2+-doped CdWO4 single crystals[J].Journal of Optoelectronics·laser,2011(9):1360-1363. |
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| Authors: | WAN Yun-tao ZHONG Yue-feng and XIA Hai-ping |
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| Affiliation: | Key Laboratory of Photo-electronic Materials,Ningbo University,Ningbo 315211,China;Key Laboratory of Photo-electronic Materials,Ningbo University,Ningbo 315211,China;Key Laboratory of Photo-electronic Materials,Ningbo University,Ningbo 315211,China |
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| Abstract: | The Mn2+:CdWO4 single crystal with good optical quality in the size of 25 mm×100 mm has been grown by bridgman method under the technical conditions of choosing CdO:WO3:MnO raw chemical composition in molar ratio of 100∶100∶0.5,taking ～60 ℃ temperature gradient of solid-liquid interface and 0.05 mm/h growth rate.The absorption,excitation and emission spectra of the unannealed,air-annealed and O2-annealed Mn2+:CdWO4 are investigated.An emission band at 591 nm,which is attributed to the electron transition of 4T1g→6A1g level of Mn2+ is observed.The energy level of Mn2+ in the CWO crystal is determined according to the properties of their spectra.Annealing processes are advantageous to the increase of the excitation and emission intensity,and the oxygenous annealing process takes more obvious effect on the intensity. |
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| Keywords: | (Mn2+:CWO) crystal Bridgman method spectra annealing processing |
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