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浏览/检索结果: 共12条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Highly Stable Perovskite Photodetector Based on Vapor-Processed Micrometer-Scale CsPbBr3 Microplatelets 期刊论文  OAI收割 Chemistry of Materials, 2018, 卷号: 30, 期号: 19, 页码: 6744-6755 作者:  Li, Y.;  Shi, Z. F.;  Lei, L. Z.;  Zhang, F.;  Ma, Z. Z.   |  收藏  |  浏览/下载：20/0  |  提交时间：2019/09/17 light-emitting-diodes  low-temperature photoluminescence  all-inorganic  perovskites  halide perovskites  room-temperature  high-efficiency  quantum dots  band-gap  high-quality  growth  Chemistry  Materials Science   Probing intermediates of the induction period prior to nucleation and growth of semiconductor quantum dots 期刊论文  OAI收割 NATURE COMMUNICATIONS, 2017, 卷号: 8, 期号: -, 页码: - 作者:  Liu, MY;  Wang, K;  Wang, LX;  Han, S;  Fan, HS   |  收藏  |  浏览/下载：39/0  |  提交时间：2018/08/30 Magic-sized Cdse  Strong Bandgap Photoluminescence  Small-angle Scattering  Low-temperature  Cdte Nanocrystals  Mass-spectrometry  Calcium-phosphate  Clusters  Nanoparticles  Nanoclusters   Hot-Filament-Assisted Growth of Straight SiOx Nanowires for Optoelectronic Application 期刊论文  OAI收割 JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 卷号: 117, 期号: 27, 页码: 14354-14361 作者:  Niu, MT(牛牧童);  Zhang, JP(张锦平) 收藏  |  浏览/下载：31/0  |  提交时间：2014/01/13 AMORPHOUS SILICA NANOWIRES  LIQUID-SOLID MECHANISM  OXIDE NANOWIRES  LOW-TEMPERATURE  TUNGSTEN-OXIDE  PHOTOLUMINESCENCE PROPERTIES  MOLTEN GALLIUM  LARGE-SCALE  NANOTUBES  CATALYST   Effect of Process Parameter on Properties of (Y,Gd)(2)O(3):Eu(3+) Nanopowders Prepared by Co-Precipitation Method 期刊论文  OAI收割 Chinese Journal of Inorganic Chemistry, 2009, 卷号: 25, 期号: 5, 页码: 880-885 Y. F. Guo; W. M. Ma; L. Wen; S. F. Shen; H. D. Wang; K. Yin 收藏  |  浏览/下载：45/0  |  提交时间：2012/04/13 co-precipitation method  process parameter  synthesis and  characterzation  optical spectrum characteristic  spray-pyrolysis  low-temperature  y2o3-eu  phosphors  ceramics  photoluminescence  gd2-xyxo3-eu3+  fabrication   Field electron emission improvement of ZnO nanorod, arrays after Ar plasma treatment 期刊论文  OAI收割 APPLIED SURFACE SCIENCE, 2007, 卷号: 253, 期号: 20, 页码: 8478-8482 Li, C; Fang, GJ; Yuan, LY; Liu, NS; Li, J; Li, DJ; Zhao, XZ 收藏  |  浏览/下载：18/0  |  提交时间：2012/03/24 ZINC-OXIDE NANOWIRES  CARBON NANOTUBES  LOW-TEMPERATURE  SI SUBSTRATE  GROWTH  FILMS  PHOTOLUMINESCENCE  TRANSPORT  EMITTERS   Excitonic properties of vertically aligned ZnO nanotubes under high-density excitation (EI CONFERENCE) 会议论文  OAI收割 Lu Y. M.; Liang H. W.; Shen D. Z.; Zhang Z. Z.; Zhang J. Y.; Zhao D. X.; Liu Y. C.; Fan X. W. 收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25 In this paper  highly oriented and vertically arranged ZnO nanotubes are prepared on Al2O3 (0 0 0 1) substrate without employing any metal catalysts by plasma-assisted molecular beam epitaxy. The photoluminescence (PL) spectra at room temperature are studied under high excitation densities. Under lower excitation density (60 kW/cm2)  PL spectrum shows that one strong free exciton emission (FE) locates at 3.306 eV. As the excitation density increases up to 200 kW/cm2  a new emission peak (Pn) located at low-energy side of FE is attributed to the spontaneous emission due to an exciton-exciton (Ex-E x) scattering process from two ground state excitons  where one exciton is recombined by emitting a photon and the other is scattered into the excited states of n=2  3  4.... Under excitation density of 300 kW/cm 2  the stimulated emission originating from Ex-E x scattering is obtained. When the excitation density is above 580 kW/cm2  the emission from electron-hole plasma is observed in low-energy side of the P band and indicates a typical superradiation recombination processes with increasing excitation density. 2006 Elsevier B.V. All rights reserved.   Optical characterization of bare CdSe and CdSe/CdS core/shell nanocrystals (EI CONFERENCE) 会议论文  OAI收割 ICO20: Biomedical Optics, August 21, 2005 - August 26, 2005, Changchun, China 作者:  Liu L.;  Yu B.;  Liu L. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 Thiol-capped CdSe/CdS core/shell nanocrystals (NCs) which show high luminescence quantum yield are synthesized in an aqueous solution. UV-Vis absorption spectroscopy and photoluminescence (PL) spectroscopy are employed to analyze optical characters and stabilities of NCs. Furthermore  PL properties are studied in a temperature range between 77K and 300K. The PL peak position of bare CdSe NCs shifts toward shorter wavelengths and the band becomes sharper with decreasing temperature. On the same condition  the PL peak position of CdSe/CdS core/shell NCs keeps unconverted nearly with the variation of temperature. Photostability of bare CdSe NCs and CdSe/CdS core/shell NCs are compared under the 325nm laser irradiation. It takes 78 seconds that the PL intensity declines to the half for CdSe NCs  but 442 seconds for CdSe/CdS core/shell NCs. The fluorescence decay lifetime increases about six times after overcoating. The results indicate that the CdS shell can improve the low temperature PL stability and photostability of CdSe NCs effectively.   Preparation of high purity ZnO nanobelts by thermal evaporation of ZnS 期刊论文  OAI收割 Journal of Nanoscience and Nanotechnology, 2006, 卷号: 6, 期号: 3, 页码: 704-707 Z. G. Chen; F. Li; G. Liu; Y. B. Tang; H. T. Cong; G. Q. Lu; H. M. Cheng 收藏  |  浏览/下载：97/0  |  提交时间：2012/04/13 ZnO  high purity nanobelts  low temperature vapor oxidation  photoluminescence  zinc-oxide nanostructures  nanowires  nanorods  growth   An one-pot epitaxial growth method to synthesize cactus-like ZnO 期刊论文  OAI收割 materials letters, 2006, 卷号: 60, 期号: 29-30, 页码: 3487-3491 Tang J; Yang XR 收藏  |  浏览/下载：21/0  |  提交时间：2010/08/17 LOW-TEMPERATURE  NANORODS  DEPOSITION  FILMS  PHOTOLUMINESCENCE  ROUTE   Electronic structure of ZnO wurtzite quantum wires 期刊论文  OAI收割 european physical journal b, 2006, 卷号: 49, 期号: 4, 页码: 415-420 Xia JB (Xia J. B.); Zhanga XW (Zhang X. W.) 收藏  |  浏览/下载：38/0  |  提交时间：2010/04/11 LOW-TEMPERATURE GROWTH  BINDING-ENERGIES  NANOWIRE ARRAYS  PHOTOLUMINESCENCE  PHOTODETECTORS  SPECTROSCOPY  SAPPHIRE  CRYSTAL  GAN