Strong pore-size dependence of the optical properties in porous alumina membranes

C. H. Jeon; D. H. Kim; Y. S. Lee; J. K. Han; Y. C. Choi; S. D. Bu; H. Y. Shin; S. Yoon

doi:10.3938/jkps.63.1789

Strong pore-size dependence of the optical properties in porous alumina membranes

C. H. Jeon, D. H. Kim, Y. S. Lee, J. K. Han, Y. C. Choi, S. D. Bu, H. Y. Shin, S. Yoon

Department of Physics

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

5 Scopus citations

Abstract

We report on the strong pore-size-dependent optical properties of porous alumina membranes (PAMs) by using the photoluminescence and the optical spectroscopic techniques. The pore diameters of our PAMs varied from 60 to 420 nm. All samples showed a sizable violet/blue emission with a strong temperature dependence. We found that the peak position of the emission shifted to higher energies with increasing pore diameter, which was in accord with the smaller binding energy extracted from the temperature dependence of the emission intensity. From the transmission spectra, we found that the effective bandgap of the PAMs shifted significantly to lower energies with increasing pore diameter, which indicated that the impurity states within the bandgap was affected strongly by the geometry of the PAM.

Original language	English
Pages (from-to)	1789-1793
Number of pages	5
Journal	Journal of the Korean Physical Society
Volume	63
Issue number	9
DOIs	https://doi.org/10.3938/jkps.63.1789
State	Published - Nov 2013

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MOE) (No. 2013R1A1A2012281). SDB was supported by the Priority Research Centers Program through the funded by the Ministry of Education, Science and Technology (MEST, No. 2011-0031400). SY was supported by grants funded by the Korea government (MEST, No. 2011k000584) and the Korea government (MSIP, No. 2008-0062237).

Keywords

Optical simulation
Photoluminescence
Pore-size dependence
Porous alumina membrane
Transmission

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10.3938/jkps.63.1789

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title = "Strong pore-size dependence of the optical properties in porous alumina membranes",

abstract = "We report on the strong pore-size-dependent optical properties of porous alumina membranes (PAMs) by using the photoluminescence and the optical spectroscopic techniques. The pore diameters of our PAMs varied from 60 to 420 nm. All samples showed a sizable violet/blue emission with a strong temperature dependence. We found that the peak position of the emission shifted to higher energies with increasing pore diameter, which was in accord with the smaller binding energy extracted from the temperature dependence of the emission intensity. From the transmission spectra, we found that the effective bandgap of the PAMs shifted significantly to lower energies with increasing pore diameter, which indicated that the impurity states within the bandgap was affected strongly by the geometry of the PAM.",

keywords = "Optical simulation, Photoluminescence, Pore-size dependence, Porous alumina membrane, Transmission",

author = "Jeon, {C. H.} and Kim, {D. H.} and Lee, {Y. S.} and Han, {J. K.} and Choi, {Y. C.} and Bu, {S. D.} and Shin, {H. Y.} and S. Yoon",

note = "Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MOE) (No. 2013R1A1A2012281). SDB was supported by the Priority Research Centers Program through the funded by the Ministry of Education, Science and Technology (MEST, No. 2011-0031400). SY was supported by grants funded by the Korea government (MEST, No. 2011k000584) and the Korea government (MSIP, No. 2008-0062237).",

year = "2013",

month = nov,

doi = "10.3938/jkps.63.1789",

language = "English",

volume = "63",

pages = "1789--1793",

journal = "Journal of the Korean Physical Society",

issn = "0374-4884",

publisher = "Korean Physical Society",

number = "9",

}

TY - JOUR

T1 - Strong pore-size dependence of the optical properties in porous alumina membranes

AU - Jeon, C. H.

AU - Kim, D. H.

AU - Lee, Y. S.

AU - Han, J. K.

AU - Choi, Y. C.

AU - Bu, S. D.

AU - Shin, H. Y.

AU - Yoon, S.

N1 - Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MOE) (No. 2013R1A1A2012281). SDB was supported by the Priority Research Centers Program through the funded by the Ministry of Education, Science and Technology (MEST, No. 2011-0031400). SY was supported by grants funded by the Korea government (MEST, No. 2011k000584) and the Korea government (MSIP, No. 2008-0062237).

PY - 2013/11

Y1 - 2013/11

N2 - We report on the strong pore-size-dependent optical properties of porous alumina membranes (PAMs) by using the photoluminescence and the optical spectroscopic techniques. The pore diameters of our PAMs varied from 60 to 420 nm. All samples showed a sizable violet/blue emission with a strong temperature dependence. We found that the peak position of the emission shifted to higher energies with increasing pore diameter, which was in accord with the smaller binding energy extracted from the temperature dependence of the emission intensity. From the transmission spectra, we found that the effective bandgap of the PAMs shifted significantly to lower energies with increasing pore diameter, which indicated that the impurity states within the bandgap was affected strongly by the geometry of the PAM.

AB - We report on the strong pore-size-dependent optical properties of porous alumina membranes (PAMs) by using the photoluminescence and the optical spectroscopic techniques. The pore diameters of our PAMs varied from 60 to 420 nm. All samples showed a sizable violet/blue emission with a strong temperature dependence. We found that the peak position of the emission shifted to higher energies with increasing pore diameter, which was in accord with the smaller binding energy extracted from the temperature dependence of the emission intensity. From the transmission spectra, we found that the effective bandgap of the PAMs shifted significantly to lower energies with increasing pore diameter, which indicated that the impurity states within the bandgap was affected strongly by the geometry of the PAM.

KW - Optical simulation

KW - Photoluminescence

KW - Pore-size dependence

KW - Porous alumina membrane

KW - Transmission

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DO - 10.3938/jkps.63.1789

M3 - Article

AN - SCOPUS:84888225498

SN - 0374-4884

VL - 63

SP - 1789

EP - 1793

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - 9

ER -

Strong pore-size dependence of the optical properties in porous alumina membranes

Abstract

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Keywords

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