Temperature and pressure dependences of the mn2+ and donor-acceptor emissions in zns : mn2+ nanoparticles
文献类型：期刊论文
| 作者 | Chen, W; Su, FH; Li, GH; Joly, AG; Malm, JO; Bovin, JO |
| 刊名 | Journal of applied physics
 |
| 出版日期 | 2002-08-15 |
| 卷号 | 92期号:4页码:1950-1955 |
| ISSN号 | 0021-8979 |
| DOI | 10.1063/1.1495070 |
| 通讯作者 | Chen, w() |
| 英文摘要 | Temperature and pressure dependent measurements have been performed on 3.5 nm zns:mn2+ nanoparticles. as temperature increases, the donor-acceptor (da) emission of zns:mn2+ nanoparticles at 440 nm shifts to longer wavelengths while the mn2+ emission (t-4(1)-(6)a(1)) shifts to shorter wavelengths. both the da and mn2+ emission intensities decrease with temperature with the intensity decrease of the da emission being much more pronounced. the intensity decreases are fit well with the theory of thermal quenching. as pressure increases, the mn2+ emission shifts to longer wavelengths while the da emission wavelength remains almost constant. the pressure coefficient of the da emission in zns:mn2+ nanoparticles is approximately -3.2 mev/gpa, which is significantly smaller than that measured for bulk materials. the relatively weak pressure dependence of the da emission is attributed to the increase of the binding energies and the localization of the defect wave functions in nanoparticles. the pressure coefficient of mn2+ emission in zns:mn2+ nanoparticles is roughly -34.3 mev/gpa, consistent with crystal field theory. the results indicate that the energy transfer from the zns host to mn2+ ions is mainly from the recombination of carriers localized at mn2+ ions. (c) 2002 american institute of physics. |
| WOS关键词 | ZNS NANOCLUSTERS ; LUMINESCENCE ; NANOCRYSTALS ; PHOTOLUMINESCENCE ; SEMICONDUCTOR ; SURFACE ; METAL ; SIZE |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000177171700036 |
| 出版者 | AMER INST PHYSICS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2429181 |
| 专题 | 半导体研究所 |
| 通讯作者 | Chen, W |
| 作者单位 | 1.Nomad Inc, Stillwater, OK 74074 USA 2.Chinese Acad Sci, Inst Semicond, Natl Lab Superlattices & Microstruct, Beijing 100083, Peoples R China 3.Pacific NW Natl Lab, Richland, WA 99352 USA 4.Lund Univ, Ctr Chem & Chem Engn, SE-22100 Lund, Sweden |
| 推荐引用方式 GB/T 7714 | Chen, W,Su, FH,Li, GH,et al. Temperature and pressure dependences of the mn2+ and donor-acceptor emissions in zns : mn2+ nanoparticles[J]. Journal of applied physics,2002,92(4):1950-1955. |
| APA | Chen, W,Su, FH,Li, GH,Joly, AG,Malm, JO,&Bovin, JO.(2002).Temperature and pressure dependences of the mn2+ and donor-acceptor emissions in zns : mn2+ nanoparticles.Journal of applied physics,92(4),1950-1955. |
| MLA | Chen, W,et al."Temperature and pressure dependences of the mn2+ and donor-acceptor emissions in zns : mn2+ nanoparticles".Journal of applied physics 92.4(2002):1950-1955. |
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来源：半导体研究所
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