- 必威体育下载

姓名
邮箱
手机号码
标题
留言内容
验证码

摘要

在北京师范大学GIC4117 2 × 1.7 MV串列加速器上, 利用离子激发发光(ions beam induced luminescence, IBIL)技术研究了2 MeV H ⁺注入ZnO的缺陷变化及473和800 K退火处理对缺陷的恢复作用. 实验表明, 在2 MeV H ⁺的辐照下, 晶体内部产生的点缺陷会快速移动、聚集成团簇, 从而抑制发光. 473 K退火后的受辐照ZnO晶体内仍存在着大量的缺陷和团簇, 而这些缺陷和团簇作为非辐射中心抑制着ZnO晶体的发光. 800 K的退火处理可以显著地分解辐照过程中形成的团簇, 也可以帮助点缺陷回到晶格位置, 从而减少晶体内部的不平衡缺陷, 提高晶体的结晶度, 使退火后的受辐照ZnO样品IBIL光强大幅度增强.

关键词:

离子激发发光/
退火/
ZnO

Abstract

The optical and electrical properties of ZnO related on the type and the concentration of defects in ZnO crystal. Ion implantation and annealing can change the type and the concentration of defects in ZnO. To understand the variation of defects in ZnO during ion implantation and after different temperature annealing, in situ luminescence measurements of ZnO crystal samples were carried out by ion beam induced luminescence (IBIL) during ion implantation of 2 MeV H ⁺and then after annealing at 473 K and 800 K in vacuum on the GIC4117 tandem accelerator in Beijing Normal University. IBIL spectra of ZnO showtwo emission peaks: UV emission, which is called near band emission (NBE), and visible emission, which is called deep band emission (DBE).The high-intensity of DBE and weak NBE of IBIL spectra of ZnOmay be due to the NBE is intrinsic to ZnO samples and therefore is just visibly observed from samples that are virtually defect-free. With the ion implantation, the destruction of the crystal structure and the arising of a mass of defects, inducing the weak intensity NBE and intense DBE.In addition, the overall IBIL spectra of ZnOreveal decrease intensity with the ion fluence,which indicates that the concentration of luminescence centersdecreases duringion implantation.With the H ⁺fluence, the concentration of the point defects increases. The point defects migrate and subsequently agglomerate into larger defect clusters. These defect clusters serve as traps for catching electrons and holes, which result in the quenching of luminescence centres. Annealing can help todecompose the defect clusters and repair the defects of crystal. However, amounts of defects and clusters still remain in the irradiated sample annealed at 473 K in vacuum, which acted as nonradiative center and suppress the luminescence induced weak intensity of IBIL. Annealing the sample at 800 K in vacuum may facilitate the decomposition of defect clusters during ion irradiation to point defects and the point defect return to the lattice position that can reduce the nonequilibrium defects inside the crystal and improve the crystallinity of the crystal, which increase the intensity of its IBIL.

Keywords:

作者及机构信息

1.
2.

通信作者:仇猛淋,11132018326@bnu.edu.cn; 王广甫,88088@bnu.edu.cn;

基金项目:国家自然科学基金青年科学基金(批准号: 11905010)、中央高校基本科研业务费专项资金(批准号: 2018NTST04)和中国博士后科学基金(批准号: 2019M650526)资助的课题

Authors and contacts

1.
2.

Corresponding author:Qiu Meng-Lin,11132018326@bnu.edu.cn; Wang Guang-Fu,88088@bnu.edu.cn;

Funds:Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No.11905010), the Fundamental Research Funds for the Central Universities, China(Grant No.2018NTST04), and the China Postdoctoral Science Foundation funded project(Grant No.2019M650526)

文章全文: translate this paragraph

参考文献

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]

施引文献

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]

[1]	徐大庆, 张义门, 娄永乐, 童军.热退火对Mn离子注入非故意掺杂GaN微结构、光学及磁学特性的影响. 必威体育下载 , 2014, 63(4): 047501.doi:10.7498/aps.63.047501
[2]	李铭杰, 高红, 李江禄, 温静, 李凯, 张伟光.低温下单根ZnO纳米带电学性质的研究. 必威体育下载 , 2013, 62(18): 187302.doi:10.7498/aps.62.187302
[3]	张富春, 张威虎, 董军堂, 张志勇.Cr掺杂ZnO纳米线的电子结构和磁性. 必威体育下载 , 2011, 60(12): 127503.doi:10.7498/aps.60.127503
[4]	潘峰, 丁斌峰, 法涛, 成枫锋, 周生强, 姚淑德.Fe离子注入ZnO生成超顺磁纳米颗粒. 必威体育下载 , 2011, 60(10): 108501.doi:10.7498/aps.60.108501
[5]	于宙, 李祥, 龙雪, 程兴旺, 王晶云, 刘颖, 曹茂盛, 王富耻.Mn掺杂ZnO稀磁半导体材料的制备和磁性研究. 必威体育下载 , 2008, 57(7): 4539-4544.doi:10.7498/aps.57.4539
[6]	羊新胜, 赵勇.铁磁性锰氧化物掺杂的ZnO压敏电阻性能研究. 必威体育下载 , 2008, 57(5): 3188-3192.doi:10.7498/aps.57.3188
[7]	黄金华, 张琨, 潘楠, 高志伟, 王晓平.表面修饰ZnO纳米线紫外光响应的增强效应. 必威体育下载 , 2008, 57(12): 7855-7859.doi:10.7498/aps.57.7855
[8]	段满益, 徐明, 周海平, 陈青云, 胡志刚, 董成军.碳掺杂ZnO的电子结构和光学性质. 必威体育下载 , 2008, 57(10): 6520-6525.doi:10.7498/aps.57.6520
[9]	周丽宏, 张崇宏, 李炳生, 杨义涛, 宋银.注入Ar+的蓝宝石晶体退火前后光致发光谱的分析. 必威体育下载 , 2008, 57(4): 2562-2566.doi:10.7498/aps.57.2562
[10]	李晖, 谢二庆, 张洪亮, 潘孝军, 张永哲.火焰喷雾法合成ZnO和MgxZn1－xO纳米颗粒的光学性能研究. 必威体育下载 , 2007, 56(6): 3584-3588.doi:10.7498/aps.56.3584
[11]	常艳玲, 张琦锋, 孙晖, 吴锦雷.ZnO纳米线双绝缘层结构电致发光器件制备及特性研究. 必威体育下载 , 2007, 56(4): 2399-2404.doi:10.7498/aps.56.2399
[12]	刘学超, 施尔畏, 宋力昕, 张华伟, 陈之战.固相反应法制备Co掺杂ZnO的磁性和光学性能研究. 必威体育下载 , 2006, 55(5): 2557-2561.doi:10.7498/aps.55.2557
[13]	孙成伟, 刘志文, 张庆瑜.退火温度对ZnO薄膜结构和发光特性的影响. 必威体育下载 , 2006, 55(1): 430-436.doi:10.7498/aps.55.430
[14]	陈志权, 河裾厚男.He离子注入ZnO中缺陷形成的慢正电子束研究. 必威体育下载 , 2006, 55(8): 4353-4357.doi:10.7498/aps.55.4353
[15]	李勇, 孙成伟, 刘志文, 张庆瑜.磁控溅射ZnO薄膜生长的等离子体发射光谱研究. 必威体育下载 , 2006, 55(8): 4232-4237.doi:10.7498/aps.55.4232
[16]	袁洪涛, 张　跃, 谷景华.原位生长高度定向ZnO晶须. 必威体育下载 , 2004, 53(2): 646-650.doi:10.7498/aps.53.646
[17]	张　丽, 蒋昌忠, 任　峰, 陈海波, 石　瑛, 付　强.Ag-Cu离子注入玻璃后不同气氛退火的光吸收研究. 必威体育下载 , 2004, 53(9): 2910-2914.doi:10.7498/aps.53.2910
[18]	张德恒, 王卿璞, 薛忠营.不同衬底上的ZnO薄膜紫外光致发光. 必威体育下载 , 2003, 52(6): 1484-1487.doi:10.7498/aps.52.1484
[19]	方泽波, 龚恒翔, 刘雪芹, 徐大印, 黄春明, 王印月.退火对多晶ZnO薄膜结构与发光特性的影响. 必威体育下载 , 2003, 52(7): 1748-1751.doi:10.7498/aps.52.1748
[20]	杨秀健, 施朝淑, 许小亮.纳米ZnO和ZnO∶Eu3+的表面效应及发光特性. 必威体育下载 , 2002, 51(12): 2871-2874.doi:10.7498/aps.51.2871

计量

文章访问数:7185
PDF下载量:120
被引次数:0

搜索

留言板