Structural transition induced by the release of residual stress in the complex of cubic and monoclinic Gd2O3:Eu nanoparticles

Autor:	Haiyong Chen, Chunxiao Gao, Hongliang Lu, Shihai Kan, Dan Xu, Shiyong Gao, Yanguang Nie, Dongmei Li, Guangtian Zou, Quanqin Dai, Jiahua Zhang
Rok vydání:	2007
Předmět:	Photoluminescence Materials science Mechanical Engineering Nanoparticle Crystal structure Condensed Matter Physics Spectral line Nanomaterials Crystallography Mechanics of Materials Residual stress General Materials Science Luminescence Monoclinic crystal system
Zdroj:	Materials Letters. 61:4003-4005
ISSN:	0167-577X
Popis:	The Photoluminescence (PL) spectra of Gd2O3:Eu composed of cubic and monoclinic structure were collected on November 2003 and June 2006, respectively. The results show that a portion of cubic Gd2O3 transforms into monoclinic after the sample was left as it is for two years; and the 5D1–7FJ emission of Eu3+ in cubic host was enhanced in this released complex. Considering the high pressure behavior of Gd2O3, we think this structural transition is due to the sample that endures a process of press and release while the residual stress is released slowly.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2bd54407bdf696cb53ed1ce693178200 https://doi.org/10.1016/j.matlet.2007.01.005 Zobrazit plný text záznamu Full Text from ScienceDirect