VO纳米球中的高强度室温光致发光

Highly intense room-temperature photoluminescence in VO nanospheres.

作者信息

Le Top Khac, Kang Manil, Han Sang Wook, Kim Sok Won

机构信息

Department of Physics, University of Ulsan Ulsan 44610 Republic of Korea

Department of Physics, Kongju National University Kongju 32588 Republic of Korea

出版信息

RSC Adv. 2018 Dec 11;8(72):41317-41322. doi: 10.1039/c8ra06861e. eCollection 2018 Dec 7.

DOI:10.1039/c8ra06861e

PMID:35559301

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9091695/

Abstract

Room-temperature photoluminescence (PL) in VO nanospheres with zero-like dimensional structure was investigated. A large number of V oxidation states in the nanospheres were observed by X-ray photoelectron spectroscopy (XPS) measurements. The nanospheres revealed high PL intensity compared with previous studies. In particular, they showed intense ultraviolet (UV) PL near a wavelength of 396 nm (3.13 eV). The intense UV PL was attributed to the enhanced transition probability due to the large number of V (3d) oxidation states. The PL properties showed strong dependencies on the oxidation states and their distribution.

摘要

研究了具有零维结构的VO纳米球中的室温光致发光（PL）。通过X射线光电子能谱（XPS）测量观察到纳米球中大量的V氧化态。与先前的研究相比，这些纳米球显示出高PL强度。特别是，它们在396nm（3.13eV）波长附近表现出强烈的紫外（UV）PL。强烈的UV PL归因于大量V（3d）氧化态导致的跃迁概率增强。PL特性对氧化态及其分布表现出强烈的依赖性。