Surface enhanced strong visible photoluminescence from one-dimensional multiferroic BiFeO 3 nanostructures

K. Prashanthi; G. Thakur; T. Thundat

doi:10.1016/j.susc.2012.06.003

Surface enhanced strong visible photoluminescence from one-dimensional multiferroic BiFeO ₃ nanostructures

K. Prashanthi
, G. Thakur
, T. Thundat

Department of Chemical and Biological Engineering

University at Buffalo

University of Alberta

Research output: Contribution to journal › Article › peer-review

60 Scopus citations

Abstract

The surface defect dominated visible emission from one-dimensional multiferroic BiFeO ₃ (BFO) nanowires (NWs) is characterized by photoluminescence (PL) spectroscopy. The PL spectra of BFO NWs exhibit a weak near band emission (NBE) along with a strong defect-level emission (DLE). It is suggested that excess surface defects exist in BFO NWs which are responsible for strong visible green emission. Passivation of BFO NW surface with H ₂ significantly improves the NBE emission while suppressing surface recombination. Such a surface enhanced emission promises many potential applications of BFO NWs not only in photonic devices such as LEDs but also in fluorescence-based chemical sensing.

Original language	English
Pages (from-to)	L83-L86
Journal	Surface Science
Volume	606
Issue number	19-20
DOIs	https://doi.org/10.1016/j.susc.2012.06.003
State	Published - Oct 2012

Keywords

Multiferroics
Nanostructures
Photoluminescence
Surface states

Access to Document

10.1016/j.susc.2012.06.003

Cite this

@article{826aaf14a00c4ae18783313717156c36,

title = "Surface enhanced strong visible photoluminescence from one-dimensional multiferroic BiFeO 3 nanostructures",

abstract = "The surface defect dominated visible emission from one-dimensional multiferroic BiFeO 3 (BFO) nanowires (NWs) is characterized by photoluminescence (PL) spectroscopy. The PL spectra of BFO NWs exhibit a weak near band emission (NBE) along with a strong defect-level emission (DLE). It is suggested that excess surface defects exist in BFO NWs which are responsible for strong visible green emission. Passivation of BFO NW surface with H 2 significantly improves the NBE emission while suppressing surface recombination. Such a surface enhanced emission promises many potential applications of BFO NWs not only in photonic devices such as LEDs but also in fluorescence-based chemical sensing.",

keywords = "Multiferroics, Nanostructures, Photoluminescence, Surface states",

author = "K. Prashanthi and G. Thakur and T. Thundat",

year = "2012",

month = oct,

doi = "10.1016/j.susc.2012.06.003",

language = "English",

volume = "606",

pages = "L83--L86",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier B.V.",

number = "19-20",

}

TY - JOUR

T1 - Surface enhanced strong visible photoluminescence from one-dimensional multiferroic BiFeO 3 nanostructures

AU - Prashanthi, K.

AU - Thakur, G.

AU - Thundat, T.

PY - 2012/10

Y1 - 2012/10

N2 - The surface defect dominated visible emission from one-dimensional multiferroic BiFeO 3 (BFO) nanowires (NWs) is characterized by photoluminescence (PL) spectroscopy. The PL spectra of BFO NWs exhibit a weak near band emission (NBE) along with a strong defect-level emission (DLE). It is suggested that excess surface defects exist in BFO NWs which are responsible for strong visible green emission. Passivation of BFO NW surface with H 2 significantly improves the NBE emission while suppressing surface recombination. Such a surface enhanced emission promises many potential applications of BFO NWs not only in photonic devices such as LEDs but also in fluorescence-based chemical sensing.

AB - The surface defect dominated visible emission from one-dimensional multiferroic BiFeO 3 (BFO) nanowires (NWs) is characterized by photoluminescence (PL) spectroscopy. The PL spectra of BFO NWs exhibit a weak near band emission (NBE) along with a strong defect-level emission (DLE). It is suggested that excess surface defects exist in BFO NWs which are responsible for strong visible green emission. Passivation of BFO NW surface with H 2 significantly improves the NBE emission while suppressing surface recombination. Such a surface enhanced emission promises many potential applications of BFO NWs not only in photonic devices such as LEDs but also in fluorescence-based chemical sensing.

KW - Multiferroics

KW - Nanostructures

KW - Photoluminescence

KW - Surface states

UR - https://www.scopus.com/pages/publications/84864441643

U2 - 10.1016/j.susc.2012.06.003

DO - 10.1016/j.susc.2012.06.003

M3 - Article

SN - 0039-6028

VL - 606

SP - L83-L86

JO - Surface Science

JF - Surface Science

IS - 19-20

ER -

Surface enhanced strong visible photoluminescence from one-dimensional multiferroic BiFeO ₃ nanostructures

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this