Annealing effect of phosphorus-doped zno nanorods synthesized by hydrothermal method

Sung Hwan Hwang, Kyeong Ju Moon, Tae Il Lee, Jae Min Myoung

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

An effect of thermal annealing on activating phosphorus (P) atoms in ZnO nanorods (NR) grown using a hydrothermal process was investigated. NH4H2PO4 used as a dopant source reacted with Zn2+ ions and Zn3(PO4)2 sediment was produced in the solution. The fact that most of the input P elements are concentrated in the Zn3(PO4)2 sediment was confirmed using an energy dispersive spectrometer (EDS). After the hydrothermal process, ZnO NRs were synthesized and their PL peaks were exhibited at 405 and 500 nm because P atoms diffused to the ZnO crystal from the Zn3(PO4)2 particles. The solubility of the Zn3(PO4)2 initially formed sediment varied with the concentration of NH4OH. Before annealing, both the structural and the optical properties of the P-doped ZnO NR were changed by the variation of P doping concentration, which affected the ZnO lattice parameters. At low doping concentration of phosphorus in ZnO crystal, it was determined that a phosphorus atom substituted for a Zn site and interacted with two VZn, resulting in a PZn-2VZn complex, which is responsible for p-type conduction. After annealing, a shift of the PL peak was found to have occurred due to the unstable P doping state at high concentration of P, whereas at low concentration there was little shift of PL peak due to the stable P doping state.

Original languageEnglish
Pages (from-to)255-259
Number of pages5
JournalKorean Journal of Materials Research
Volume23
Issue number5
DOIs
Publication statusPublished - 2013 Jul 31

Fingerprint

Nanorods
Phosphorus
Doping (additives)
Annealing
Sediments
Atoms
Crystals
Lattice constants
Spectrometers
Optical properties
Solubility
Ions

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Hwang, Sung Hwan ; Moon, Kyeong Ju ; Lee, Tae Il ; Myoung, Jae Min. / Annealing effect of phosphorus-doped zno nanorods synthesized by hydrothermal method. In: Korean Journal of Materials Research. 2013 ; Vol. 23, No. 5. pp. 255-259.
@article{bc81e50de12e4b6c95648f42a6fd17b0,
title = "Annealing effect of phosphorus-doped zno nanorods synthesized by hydrothermal method",
abstract = "An effect of thermal annealing on activating phosphorus (P) atoms in ZnO nanorods (NR) grown using a hydrothermal process was investigated. NH4H2PO4 used as a dopant source reacted with Zn2+ ions and Zn3(PO4)2 sediment was produced in the solution. The fact that most of the input P elements are concentrated in the Zn3(PO4)2 sediment was confirmed using an energy dispersive spectrometer (EDS). After the hydrothermal process, ZnO NRs were synthesized and their PL peaks were exhibited at 405 and 500 nm because P atoms diffused to the ZnO crystal from the Zn3(PO4)2 particles. The solubility of the Zn3(PO4)2 initially formed sediment varied with the concentration of NH4OH. Before annealing, both the structural and the optical properties of the P-doped ZnO NR were changed by the variation of P doping concentration, which affected the ZnO lattice parameters. At low doping concentration of phosphorus in ZnO crystal, it was determined that a phosphorus atom substituted for a Zn site and interacted with two VZn, resulting in a PZn-2VZn complex, which is responsible for p-type conduction. After annealing, a shift of the PL peak was found to have occurred due to the unstable P doping state at high concentration of P, whereas at low concentration there was little shift of PL peak due to the stable P doping state.",
author = "Hwang, {Sung Hwan} and Moon, {Kyeong Ju} and Lee, {Tae Il} and Myoung, {Jae Min}",
year = "2013",
month = "7",
day = "31",
doi = "10.3740/MRSK.2013.23.5.255",
language = "English",
volume = "23",
pages = "255--259",
journal = "Korean Journal of Materials Research",
issn = "1225-0562",
publisher = "The Korea Federation of Science and Technology",
number = "5",

}

Annealing effect of phosphorus-doped zno nanorods synthesized by hydrothermal method. / Hwang, Sung Hwan; Moon, Kyeong Ju; Lee, Tae Il; Myoung, Jae Min.

In: Korean Journal of Materials Research, Vol. 23, No. 5, 31.07.2013, p. 255-259.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Annealing effect of phosphorus-doped zno nanorods synthesized by hydrothermal method

AU - Hwang, Sung Hwan

AU - Moon, Kyeong Ju

AU - Lee, Tae Il

AU - Myoung, Jae Min

PY - 2013/7/31

Y1 - 2013/7/31

N2 - An effect of thermal annealing on activating phosphorus (P) atoms in ZnO nanorods (NR) grown using a hydrothermal process was investigated. NH4H2PO4 used as a dopant source reacted with Zn2+ ions and Zn3(PO4)2 sediment was produced in the solution. The fact that most of the input P elements are concentrated in the Zn3(PO4)2 sediment was confirmed using an energy dispersive spectrometer (EDS). After the hydrothermal process, ZnO NRs were synthesized and their PL peaks were exhibited at 405 and 500 nm because P atoms diffused to the ZnO crystal from the Zn3(PO4)2 particles. The solubility of the Zn3(PO4)2 initially formed sediment varied with the concentration of NH4OH. Before annealing, both the structural and the optical properties of the P-doped ZnO NR were changed by the variation of P doping concentration, which affected the ZnO lattice parameters. At low doping concentration of phosphorus in ZnO crystal, it was determined that a phosphorus atom substituted for a Zn site and interacted with two VZn, resulting in a PZn-2VZn complex, which is responsible for p-type conduction. After annealing, a shift of the PL peak was found to have occurred due to the unstable P doping state at high concentration of P, whereas at low concentration there was little shift of PL peak due to the stable P doping state.

AB - An effect of thermal annealing on activating phosphorus (P) atoms in ZnO nanorods (NR) grown using a hydrothermal process was investigated. NH4H2PO4 used as a dopant source reacted with Zn2+ ions and Zn3(PO4)2 sediment was produced in the solution. The fact that most of the input P elements are concentrated in the Zn3(PO4)2 sediment was confirmed using an energy dispersive spectrometer (EDS). After the hydrothermal process, ZnO NRs were synthesized and their PL peaks were exhibited at 405 and 500 nm because P atoms diffused to the ZnO crystal from the Zn3(PO4)2 particles. The solubility of the Zn3(PO4)2 initially formed sediment varied with the concentration of NH4OH. Before annealing, both the structural and the optical properties of the P-doped ZnO NR were changed by the variation of P doping concentration, which affected the ZnO lattice parameters. At low doping concentration of phosphorus in ZnO crystal, it was determined that a phosphorus atom substituted for a Zn site and interacted with two VZn, resulting in a PZn-2VZn complex, which is responsible for p-type conduction. After annealing, a shift of the PL peak was found to have occurred due to the unstable P doping state at high concentration of P, whereas at low concentration there was little shift of PL peak due to the stable P doping state.

UR - http://www.scopus.com/inward/record.url?scp=84880680637&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84880680637&partnerID=8YFLogxK

U2 - 10.3740/MRSK.2013.23.5.255

DO - 10.3740/MRSK.2013.23.5.255

M3 - Article

AN - SCOPUS:84880680637

VL - 23

SP - 255

EP - 259

JO - Korean Journal of Materials Research

JF - Korean Journal of Materials Research

SN - 1225-0562

IS - 5

ER -