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1. 淮阴工学院 电子与电气工程学院,江苏 淮安,223003
2. 淮北师范大学 物理与电子信息学院,安徽 淮北,235000
纸质出版日期:2015-6-3,
收稿日期:2015-4-3,
修回日期:2015-4-22,
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王马华, 朱光平, 居勇峰等. 纳米氧化锌中三光子吸收与倍频效应致光辐射特性[J]. 发光学报, 2015,36(6): 617-622
WANG Ma-hua, ZHU Guang-ping, JU Yong-feng etc. Emission Characteristics of Crown-like ZnO Nanocrystals Induced by Three-photon Absorption and Second Harmonic Generation Effect[J]. Chinese Journal of Luminescence, 2015,36(6): 617-622
王马华, 朱光平, 居勇峰等. 纳米氧化锌中三光子吸收与倍频效应致光辐射特性[J]. 发光学报, 2015,36(6): 617-622 DOI: 10.3788/fgxb20153606.0617.
WANG Ma-hua, ZHU Guang-ping, JU Yong-feng etc. Emission Characteristics of Crown-like ZnO Nanocrystals Induced by Three-photon Absorption and Second Harmonic Generation Effect[J]. Chinese Journal of Luminescence, 2015,36(6): 617-622 DOI: 10.3788/fgxb20153606.0617.
为研究强光激励下纳米氧化锌发光机制
以气相传输法制备的冠状样品为对象
室温下以1 100 nm与1 150 nm脉冲激光以及350 nm氙灯对其进行激励
观测光致发光谱。根据光强关系和强场与物质作用的三阶微扰理论
认为 1 100
1 150 nm激光激励下的样品的紫外与可见光波段的辐射机理分别归因于样品中三光子吸收和二次谐波效应。同时
基于激子非弹性碰撞复合机制
对紫外辐射的红移现象进行了分析。
For the sake of investigating the photoluminescence (PL) characteristics and the mechanims from zinc oxide nanocrystals
the crown-like nanostructural samples prepared by vapor phase transport method were excited by laser pulse and Xe-lamp. Under 1 100 nm and 1 150 nm excitation
the ultroviolet emission at 388 nm and visible emission at 575 nm were observed. Based on the third disturbation theory of the interaction between intensive light field and matter and the relationship between the emission intensity and excitation power
it is confirmed that the emission performances under 1 100 nm and 1 150 nm excitation should be attributed to the three-photon absorption process and the second harmonic generation effects. Moreover
the redshift phenomena of the ultroviolet emission was analyzed based on the exciton-exciton inelastic collision recombination process.
氧化锌光致发光三光子吸收二次谐波效应
zinc oxidephotoluminescencethree-photon absorptionsecond harmonic generation effect
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