Synthesis and luminescence properties of ZnO nanostructures produced by the sol-gel method

J. Li; S. Srinivasan; G. N. He; J. Y. Kang; S. T. Wu; Fernando Ponce

doi:10.1016/j.jcrysgro.2007.11.054

Synthesis and luminescence properties of ZnO nanostructures produced by the sol-gel method

J. Li, S. Srinivasan, G. N. He, J. Y. Kang, S. T. Wu, Fernando Ponce

Physics

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

73 Scopus citations

Abstract

Zinc oxide nanostructures have been prepared by the sol-gel method on SiO₂/Si substrates using acid (pH=6) and neutral (pH=7) solutions. Neutral solutions produce rod-like ZnO nanostructures that grow laterally during subsequent thermal annealing. Acid solutions result in a combination of regions consisting of either rods or platelets. Using spatially resolved cathodoluminescence spectroscopy, it is observed that thermal treatment of ZnO grown in neutral sol affects the deep-level luminescence, reducing the yellow emission but retaining the green luminescence. In material grown from acid solutions, stronger luminescence has been observed from rods compared to platelets. Luminescence from nanorods shows donor-bound exciton and donor-acceptor-pair emissions at low temperatures (<40 K) and a broad near-band-edge peak for higher temperatures. The role of pH on the growth mechanisms leading to rod and platelet formation is discussed.

Original language	English (US)
Pages (from-to)	599-603
Number of pages	5
Journal	Journal of Crystal Growth
Volume	310
Issue number	3
DOIs	https://doi.org/10.1016/j.jcrysgro.2007.11.054
State	Published - Feb 1 2008

Keywords

A1. Nanostructure
B1. ZnO
B2. Semiconducting II-VI materials

ASJC Scopus subject areas

Condensed Matter Physics
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/j.jcrysgro.2007.11.054

Cite this

@article{953104d38d2849609e6a051e65fb0e2d,

title = "Synthesis and luminescence properties of ZnO nanostructures produced by the sol-gel method",

abstract = "Zinc oxide nanostructures have been prepared by the sol-gel method on SiO2/Si substrates using acid (pH=6) and neutral (pH=7) solutions. Neutral solutions produce rod-like ZnO nanostructures that grow laterally during subsequent thermal annealing. Acid solutions result in a combination of regions consisting of either rods or platelets. Using spatially resolved cathodoluminescence spectroscopy, it is observed that thermal treatment of ZnO grown in neutral sol affects the deep-level luminescence, reducing the yellow emission but retaining the green luminescence. In material grown from acid solutions, stronger luminescence has been observed from rods compared to platelets. Luminescence from nanorods shows donor-bound exciton and donor-acceptor-pair emissions at low temperatures (<40 K) and a broad near-band-edge peak for higher temperatures. The role of pH on the growth mechanisms leading to rod and platelet formation is discussed.",

keywords = "A1. Nanostructure, B1. ZnO, B2. Semiconducting II-VI materials",

author = "J. Li and S. Srinivasan and He, {G. N.} and Kang, {J. Y.} and Wu, {S. T.} and Fernando Ponce",

note = "Funding Information: The authors gratefully acknowledge the support from the National “863” Program (2006AA03A110), the National Nature Science Foundation (60336020), the Science and Technology Project of Fujian Province (2005H043), and the Science and Technology Novel Project of Xiamen University (XMKJCX20051025).",

year = "2008",

month = feb,

day = "1",

doi = "10.1016/j.jcrysgro.2007.11.054",

language = "English (US)",

volume = "310",

pages = "599--603",

journal = "Journal of Crystal Growth",

issn = "0022-0248",

publisher = "Elsevier",

number = "3",

}

TY - JOUR

T1 - Synthesis and luminescence properties of ZnO nanostructures produced by the sol-gel method

AU - Li, J.

AU - Srinivasan, S.

AU - He, G. N.

AU - Kang, J. Y.

AU - Wu, S. T.

AU - Ponce, Fernando

N1 - Funding Information: The authors gratefully acknowledge the support from the National “863” Program (2006AA03A110), the National Nature Science Foundation (60336020), the Science and Technology Project of Fujian Province (2005H043), and the Science and Technology Novel Project of Xiamen University (XMKJCX20051025).

PY - 2008/2/1

Y1 - 2008/2/1

N2 - Zinc oxide nanostructures have been prepared by the sol-gel method on SiO2/Si substrates using acid (pH=6) and neutral (pH=7) solutions. Neutral solutions produce rod-like ZnO nanostructures that grow laterally during subsequent thermal annealing. Acid solutions result in a combination of regions consisting of either rods or platelets. Using spatially resolved cathodoluminescence spectroscopy, it is observed that thermal treatment of ZnO grown in neutral sol affects the deep-level luminescence, reducing the yellow emission but retaining the green luminescence. In material grown from acid solutions, stronger luminescence has been observed from rods compared to platelets. Luminescence from nanorods shows donor-bound exciton and donor-acceptor-pair emissions at low temperatures (<40 K) and a broad near-band-edge peak for higher temperatures. The role of pH on the growth mechanisms leading to rod and platelet formation is discussed.

AB - Zinc oxide nanostructures have been prepared by the sol-gel method on SiO2/Si substrates using acid (pH=6) and neutral (pH=7) solutions. Neutral solutions produce rod-like ZnO nanostructures that grow laterally during subsequent thermal annealing. Acid solutions result in a combination of regions consisting of either rods or platelets. Using spatially resolved cathodoluminescence spectroscopy, it is observed that thermal treatment of ZnO grown in neutral sol affects the deep-level luminescence, reducing the yellow emission but retaining the green luminescence. In material grown from acid solutions, stronger luminescence has been observed from rods compared to platelets. Luminescence from nanorods shows donor-bound exciton and donor-acceptor-pair emissions at low temperatures (<40 K) and a broad near-band-edge peak for higher temperatures. The role of pH on the growth mechanisms leading to rod and platelet formation is discussed.

KW - A1. Nanostructure

KW - B1. ZnO

KW - B2. Semiconducting II-VI materials

UR - http://www.scopus.com/inward/record.url?scp=37849020945&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=37849020945&partnerID=8YFLogxK

U2 - 10.1016/j.jcrysgro.2007.11.054

DO - 10.1016/j.jcrysgro.2007.11.054

M3 - Article

AN - SCOPUS:37849020945

SN - 0022-0248

VL - 310

SP - 599

EP - 603

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

IS - 3

ER -

Synthesis and luminescence properties of ZnO nanostructures produced by the sol-gel method

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this