Unexpectedly large energy gap in ZnO nanoparticles on a fused quartz support

Standard

Unexpectedly large energy gap in ZnO nanoparticles on a fused quartz support. / Leonov, N. B.; Komissarov, M. D.; Parfenov, P. S.; Vartanyan, T. A.; Polishchuk, V. A.; Tomaev, V. V.; Koroleva, A. V.; Zhizhin, E. V.

In: Applied Physics A: Materials Science and Processing, Vol. 128, No. 8, 665, 08.2022.

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

Harvard

Leonov, NB, Komissarov, MD, Parfenov, PS, Vartanyan, TA, Polishchuk, VA, Tomaev, VV, Koroleva, AV & Zhizhin, EV 2022, 'Unexpectedly large energy gap in ZnO nanoparticles on a fused quartz support', Applied Physics A: Materials Science and Processing, vol. 128, no. 8, 665. https://doi.org/10.1007/s00339-022-05810-8

APA

Leonov, N. B., Komissarov, M. D., Parfenov, P. S., Vartanyan, T. A., Polishchuk, V. A., Tomaev, V. V., Koroleva, A. V., & Zhizhin, E. V. (2022). Unexpectedly large energy gap in ZnO nanoparticles on a fused quartz support. Applied Physics A: Materials Science and Processing, 128(8), [665]. https://doi.org/10.1007/s00339-022-05810-8

Vancouver

Leonov NB, Komissarov MD, Parfenov PS, Vartanyan TA, Polishchuk VA, Tomaev VV et al. Unexpectedly large energy gap in ZnO nanoparticles on a fused quartz support. Applied Physics A: Materials Science and Processing. 2022 Aug;128(8). 665. https://doi.org/10.1007/s00339-022-05810-8

Author

Leonov, N. B. ; Komissarov, M. D. ; Parfenov, P. S. ; Vartanyan, T. A. ; Polishchuk, V. A. ; Tomaev, V. V. ; Koroleva, A. V. ; Zhizhin, E. V. / Unexpectedly large energy gap in ZnO nanoparticles on a fused quartz support. In: Applied Physics A: Materials Science and Processing. 2022 ; Vol. 128, No. 8.

BibTeX

@article{511f335ef2b24b338af6b86ae45d6990,

title = "Unexpectedly large energy gap in ZnO nanoparticles on a fused quartz support",

abstract = "Granulated zinc metal films on fused quartz and sapphire supports were obtained via pulsed laser deposition and then oxidized in air at different temperatures. We found that optical absorbance spectra of oxide films do not depend on the oxidation temperatures from 400 to 750 °C. The spectra are characterized by the fundamental absorption edge and the exciton maximum at 370 nm. At the oxidation temperature of 770 °C, the optical absorbance spectrum changes dramatically. The fundamental absorption edge was shown to shift to shorter wavelength, thereby heralding the growth of the band gap. To elucidate the origin of the observed phenomena, the films stoichiometry was studied via X-ray photoelectron spectroscopy (XPS). Band edge luminescence was observed independent of the oxidation temperature. On the other hand, visible luminescence at 500 nm occurs only at the oxidation temperatures higher than 600 °C and grows afterward. According to the results of XPS, the reason for the appearance of that luminescence peak is the appearance of oxygen vacancies at oxidation temperatures above 600 °C.",

keywords = "Absorbance, Band gap, Luminescence, Metal films, Oxidation",

author = "Leonov, {N. B.} and Komissarov, {M. D.} and Parfenov, {P. S.} and Vartanyan, {T. A.} and Polishchuk, {V. A.} and Tomaev, {V. V.} and Koroleva, {A. V.} and Zhizhin, {E. V.}",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.",

year = "2022",

month = aug,

doi = "10.1007/s00339-022-05810-8",

language = "English",

volume = "128",

journal = "Applied Physics A: Materials Science and Processing",

issn = "0947-8396",

publisher = "Springer Nature",

number = "8",

}

RIS

TY - JOUR

T1 - Unexpectedly large energy gap in ZnO nanoparticles on a fused quartz support

AU - Leonov, N. B.

AU - Komissarov, M. D.

AU - Parfenov, P. S.

AU - Vartanyan, T. A.

AU - Polishchuk, V. A.

AU - Tomaev, V. V.

AU - Koroleva, A. V.

AU - Zhizhin, E. V.

PY - 2022/8

Y1 - 2022/8

N2 - Granulated zinc metal films on fused quartz and sapphire supports were obtained via pulsed laser deposition and then oxidized in air at different temperatures. We found that optical absorbance spectra of oxide films do not depend on the oxidation temperatures from 400 to 750 °C. The spectra are characterized by the fundamental absorption edge and the exciton maximum at 370 nm. At the oxidation temperature of 770 °C, the optical absorbance spectrum changes dramatically. The fundamental absorption edge was shown to shift to shorter wavelength, thereby heralding the growth of the band gap. To elucidate the origin of the observed phenomena, the films stoichiometry was studied via X-ray photoelectron spectroscopy (XPS). Band edge luminescence was observed independent of the oxidation temperature. On the other hand, visible luminescence at 500 nm occurs only at the oxidation temperatures higher than 600 °C and grows afterward. According to the results of XPS, the reason for the appearance of that luminescence peak is the appearance of oxygen vacancies at oxidation temperatures above 600 °C.

AB - Granulated zinc metal films on fused quartz and sapphire supports were obtained via pulsed laser deposition and then oxidized in air at different temperatures. We found that optical absorbance spectra of oxide films do not depend on the oxidation temperatures from 400 to 750 °C. The spectra are characterized by the fundamental absorption edge and the exciton maximum at 370 nm. At the oxidation temperature of 770 °C, the optical absorbance spectrum changes dramatically. The fundamental absorption edge was shown to shift to shorter wavelength, thereby heralding the growth of the band gap. To elucidate the origin of the observed phenomena, the films stoichiometry was studied via X-ray photoelectron spectroscopy (XPS). Band edge luminescence was observed independent of the oxidation temperature. On the other hand, visible luminescence at 500 nm occurs only at the oxidation temperatures higher than 600 °C and grows afterward. According to the results of XPS, the reason for the appearance of that luminescence peak is the appearance of oxygen vacancies at oxidation temperatures above 600 °C.

KW - Absorbance

KW - Band gap

KW - Luminescence

KW - Metal films

KW - Oxidation

UR - http://www.scopus.com/inward/record.url?scp=85133931744&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/bf9d6686-4de6-3d6c-a7d1-fbdcad38fe65/

U2 - 10.1007/s00339-022-05810-8

DO - 10.1007/s00339-022-05810-8

M3 - Article

AN - SCOPUS:85133931744

VL - 128

JO - Applied Physics A: Materials Science and Processing

JF - Applied Physics A: Materials Science and Processing

SN - 0947-8396

IS - 8

M1 - 665

ER -

ID: 97284108