Pressure behaviour of the uv and green emission bands in zno micro-rods
文献类型：期刊论文
| 作者 | Li, G. H.; Su, F. H.; Wang, W. J.; Ding, K.; Chen, W.; Liu, Y. F.; Joly, A. G. |
| 刊名 | Physica status solidi b-basic solid state physics
 |
| 出版日期 | 2007 |
| 卷号 | 244期号:1页码:87-92 |
| ISSN号 | 0370-1972 |
| DOI | 10.1002/pssb.200672545 |
| 通讯作者 | Li, g. h.(ghli@red.semi.ac.cn) |
| 英文摘要 | The pressure behavior of the ultraviolet (uv) and green emission bands in zno tetrapod-like micro-rods has been investigated at 300 and 70 k, respectively. the pressure coefficient of the uv band at 300 k is 24.5 mev/gpa, consistent with that of the band gap of bulk zno. however, the pressure coefficient of the green band is 25 mev/gpa, far larger than previous literature reports. the green band in this work originates from cu-related emission, as confirmed by the fine structure observed in the spectra at 10 k. the pressure coefficients of four phonon replicas of the free exciton emission (fx) at 70 k are 21.0, 20.2, 19.8, and 19.3 mev/gpa, respectively. the energy shift rate of the fx emission and the lo phonon energies is then determined to be 21.4 and 0.55 mev/gpa. the pressure coefficient of the neutral donor bound exciton ((dx)-x-0) transition is 20.5 mev/gpa, only 4% smaller than that of fx. this confirms that the (dx)-x-0 emission corresponds to excitons bound to neutral shallow donors. (c) 2007 wiley-vch verlag gmbh & co. kgaa, weinheim. |
| WOS关键词 | OPTICAL-PROPERTIES ; ZINC-OXIDE ; PHOTOLUMINESCENCE ; NANOWIRES ; GROWTH |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000243693600016 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2427150 |
| 专题 | 半导体研究所 |
| 通讯作者 | Li, G. H. |
| 作者单位 | 1.Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China 2.Univ Texas, Dept Phys, Arlington, TX 76019 USA 3.Nomad Inc, Stillwater, OK 74074 USA 4.Pacific NW Natl Lab, Richland, WA 99354 USA |
| 推荐引用方式 GB/T 7714 | Li, G. H.,Su, F. H.,Wang, W. J.,et al. Pressure behaviour of the uv and green emission bands in zno micro-rods[J]. Physica status solidi b-basic solid state physics,2007,244(1):87-92. |
| APA | Li, G. H..,Su, F. H..,Wang, W. J..,Ding, K..,Chen, W..,...&Joly, A. G..(2007).Pressure behaviour of the uv and green emission bands in zno micro-rods.Physica status solidi b-basic solid state physics,244(1),87-92. |
| MLA | Li, G. H.,et al."Pressure behaviour of the uv and green emission bands in zno micro-rods".Physica status solidi b-basic solid state physics 244.1(2007):87-92. |
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来源：半导体研究所
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