Structural and optical properties of 6,13-pentacenequinone thin films

D. K. Hwang; Kibum Kim; Jae Hoon Kim; Seongil Im; Duk Young Jung; Eugene Kim

doi:10.1063/1.1832759

Structural and optical properties of 6,13-pentacenequinone thin films

D. K. Hwang, Kibum Kim, Jae Hoon Kim, Seongil Im, Duk Young Jung, Eugene Kim

Department of Physics

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

22 Citations (Scopus)

Abstract

We report on the structural and optical properties of 6, 13-pentacenequinone thin films deposited on n-Si substrates by thermal evaporation at room temperature. X-ray diffraction data indicate excellent crystallinity but the films have two crystalline phases mixed. Photoluminescence (PL) spectra exhibited double peaks at 1.97 and 2.09 eV while the corresponding (double) peaks, associated with the highest occupied molecular orbital-lowest unoccupied molecular orbital transition, were also observed from direct absorption spectra at 2.94 and 3.11 eV. The yellow PL band was quite intense under UV illumination; the intensity was comparable to that from Tris-(8-hydroxyquinoline) aluminum (Alq₃) thin films. A large Stokes shift of ∼ 1 eV found in our 6,13-pentacenequinone thin films suggests potential applications to UV-detectors and UV-detecting cards.

Original language	English
Pages (from-to)	5568-5570
Number of pages	3
Journal	Applied Physics Letters
Volume	85
Issue number	23
DOIs	https://doi.org/10.1063/1.1832759
Publication status	Published - 2004 Dec 6

Bibliographical note

Funding Information:
The authors are very appreciative of the financial support from KISTEP (Program No. M1-0214-00-0228), and they also acknowledge the support from Brain Korea 21 Program. J.H.K acknowledges financial support from electron Spin Science Center at Postech, funded by KOSEF.

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.1832759

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title = "Structural and optical properties of 6,13-pentacenequinone thin films",

abstract = "We report on the structural and optical properties of 6, 13-pentacenequinone thin films deposited on n-Si substrates by thermal evaporation at room temperature. X-ray diffraction data indicate excellent crystallinity but the films have two crystalline phases mixed. Photoluminescence (PL) spectra exhibited double peaks at 1.97 and 2.09 eV while the corresponding (double) peaks, associated with the highest occupied molecular orbital-lowest unoccupied molecular orbital transition, were also observed from direct absorption spectra at 2.94 and 3.11 eV. The yellow PL band was quite intense under UV illumination; the intensity was comparable to that from Tris-(8-hydroxyquinoline) aluminum (Alq3) thin films. A large Stokes shift of ∼ 1 eV found in our 6,13-pentacenequinone thin films suggests potential applications to UV-detectors and UV-detecting cards.",

author = "Hwang, {D. K.} and Kibum Kim and Kim, {Jae Hoon} and Seongil Im and Jung, {Duk Young} and Eugene Kim",

note = "Funding Information: The authors are very appreciative of the financial support from KISTEP (Program No. M1-0214-00-0228), and they also acknowledge the support from Brain Korea 21 Program. J.H.K acknowledges financial support from electron Spin Science Center at Postech, funded by KOSEF.",

year = "2004",

month = dec,

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doi = "10.1063/1.1832759",

language = "English",

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AU - Hwang, D. K.

AU - Kim, Kibum

AU - Kim, Jae Hoon

AU - Im, Seongil

AU - Jung, Duk Young

AU - Kim, Eugene

N1 - Funding Information: The authors are very appreciative of the financial support from KISTEP (Program No. M1-0214-00-0228), and they also acknowledge the support from Brain Korea 21 Program. J.H.K acknowledges financial support from electron Spin Science Center at Postech, funded by KOSEF.

PY - 2004/12/6

Y1 - 2004/12/6

N2 - We report on the structural and optical properties of 6, 13-pentacenequinone thin films deposited on n-Si substrates by thermal evaporation at room temperature. X-ray diffraction data indicate excellent crystallinity but the films have two crystalline phases mixed. Photoluminescence (PL) spectra exhibited double peaks at 1.97 and 2.09 eV while the corresponding (double) peaks, associated with the highest occupied molecular orbital-lowest unoccupied molecular orbital transition, were also observed from direct absorption spectra at 2.94 and 3.11 eV. The yellow PL band was quite intense under UV illumination; the intensity was comparable to that from Tris-(8-hydroxyquinoline) aluminum (Alq3) thin films. A large Stokes shift of ∼ 1 eV found in our 6,13-pentacenequinone thin films suggests potential applications to UV-detectors and UV-detecting cards.

AB - We report on the structural and optical properties of 6, 13-pentacenequinone thin films deposited on n-Si substrates by thermal evaporation at room temperature. X-ray diffraction data indicate excellent crystallinity but the films have two crystalline phases mixed. Photoluminescence (PL) spectra exhibited double peaks at 1.97 and 2.09 eV while the corresponding (double) peaks, associated with the highest occupied molecular orbital-lowest unoccupied molecular orbital transition, were also observed from direct absorption spectra at 2.94 and 3.11 eV. The yellow PL band was quite intense under UV illumination; the intensity was comparable to that from Tris-(8-hydroxyquinoline) aluminum (Alq3) thin films. A large Stokes shift of ∼ 1 eV found in our 6,13-pentacenequinone thin films suggests potential applications to UV-detectors and UV-detecting cards.

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JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Structural and optical properties of 6,13-pentacenequinone thin films

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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