Designing of metallic nanocrystals embedded in non-stoichiometric perovskite nanomaterial and its surface-electronic characteristics

doi:10.1038/s41598-017-09031-5

CORC > 兰州理工大学 > 兰州理工大学

	Designing of metallic nanocrystals embedded in non-stoichiometric perovskite nanomaterial and its surface-electronic characteristics
	Suriyaprakash, Jagadeesh 1,2; Xu, Y. B.1; Zhu, Y. L.1; Yang, L. X.1; Tang, Y. L.1; Wang, Y. J.1; Li, S.1,2; Ma, X. L.1,3
刊名	SCIENTIFIC REPORTS
	2017-08-21
卷号	7
ISSN号	2045-2322
DOI	10.1038/s41598-017-09031-5
英文摘要	Engineering of novel functional nanocomposite as like as the metallic nanocrystals supported non-stoichiometric perovskite nanomaterial in controlled parameters (size, shape and ratio of chemical characteristics) is a challengeable task. In this context, we present a facile route to fabricate and study its physicochemical property at real time mode in this report. Nanoscale pure Pb crystals surfaced on non-stoichiometric A-site deficient Pb1-xTiO3-gamma nanoparticle were fabricated when a precursor lead titanate (PbTiO3) nanoparticle was exposed to an electron beam irradiation (EBI) in a transmission electron microscope (TEM) at ambient temperature. In the state of the art, the chemical states and electronic structure of non-irradiated and irradiated PbTiO3 were studied by X-ray photoelectron spectroscopy (XPS). Electron bombardment resulted in a new visible feature at low binding energy in the Pb 4f core level, while Ti 2p and O 1s line shape showed slight changes. The Fermi level of the corresponding materials was determined to be 1.65 +/- 0.1 eV and 2.05 +/- 0.1 eV above the valence band maximum, respectively. The normal, weakly p-type PTO exhibits peculiar n-type feature after EBI process (The Fermi level moves near to the conduction band). A feasible mechanism is proposed involving the electron-stimulated local bond-breaking phenomenon in PbTiO3.
资助项目	IMR SYNL-T.S. Ke Research Fellowship[2016177]
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000408102500018
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33145]
专题	兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Ma, X. L.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Suriyaprakash, Jagadeesh,Xu, Y. B.,Zhu, Y. L.,et al. Designing of metallic nanocrystals embedded in non-stoichiometric perovskite nanomaterial and its surface-electronic characteristics[J]. SCIENTIFIC REPORTS,2017,7.
APA	Suriyaprakash, Jagadeesh.,Xu, Y. B..,Zhu, Y. L..,Yang, L. X..,Tang, Y. L..,...&Ma, X. L..(2017).Designing of metallic nanocrystals embedded in non-stoichiometric perovskite nanomaterial and its surface-electronic characteristics.SCIENTIFIC REPORTS,7.
MLA	Suriyaprakash, Jagadeesh,et al."Designing of metallic nanocrystals embedded in non-stoichiometric perovskite nanomaterial and its surface-electronic characteristics".SCIENTIFIC REPORTS 7(2017).