Effects of Doping and Electrode Contacts on Performance of Organic Light-Emitting Transistors Based on Pentacene and Tris(8-hydroxyquinoline)aluminum

Dae Kyu Kim; Jeong Do Oh; Jang Woon Kim; Han Young Lee; Jong Ho Choi

doi:10.1021/acs.jpcc.6b02964

Effects of Doping and Electrode Contacts on Performance of Organic Light-Emitting Transistors Based on Pentacene and Tris(8-hydroxyquinoline)aluminum

Dae Kyu Kim, Jeong Do Oh, Jang Woon Kim, Han Young Lee, Jong Ho Choi

Department of Chemistry

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

12 Citations (Scopus)

Abstract

Heterojunction-based organic light-emitting field-effect transistors (OLEFETs) with a top-contact, long-channel geometry were fabricated and comparatively characterized. The neutral cluster beam deposition (NCBD) method was used to successively deposit two layers of p-type pentacene and n-type tris(8-hydroxyquinoline)aluminum (Alq₃). For doped OLEFETs, 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) was used as a highly fluorescent dye dopant to enhance the light-emission efficiency and change the emission color. OLEFETs revealed fine device characteristics based on deposition of highly crystalline active layers. The combination of the highly fluorescent DCM doping and asymmetric electrode configuration (Au and Li:Al or LiF/Al) exhibited efficient energy transfer and enhanced electroluminescence (EL) emission. The operating light-emission mechanisms were discussed based on EL photos acquired using a charge-coupled device (CCD) camera.

Original language	English
Pages (from-to)	13716-13724
Number of pages	9
Journal	Journal of Physical Chemistry C
Volume	120
Issue number	25
DOIs	https://doi.org/10.1021/acs.jpcc.6b02964
Publication status	Published - 2016 Jun 30

Bibliographical note

Funding Information:
This work was supported by a grant from the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT and Future Planning (NRF2014R1A2A2A01005719), the Basic Science Research Program through the NRF funded by the Ministry of Education (NRF20100020209).

Publisher Copyright:
© 2016 American Chemical Society.

Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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title = "Effects of Doping and Electrode Contacts on Performance of Organic Light-Emitting Transistors Based on Pentacene and Tris(8-hydroxyquinoline)aluminum",

abstract = "Heterojunction-based organic light-emitting field-effect transistors (OLEFETs) with a top-contact, long-channel geometry were fabricated and comparatively characterized. The neutral cluster beam deposition (NCBD) method was used to successively deposit two layers of p-type pentacene and n-type tris(8-hydroxyquinoline)aluminum (Alq3). For doped OLEFETs, 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) was used as a highly fluorescent dye dopant to enhance the light-emission efficiency and change the emission color. OLEFETs revealed fine device characteristics based on deposition of highly crystalline active layers. The combination of the highly fluorescent DCM doping and asymmetric electrode configuration (Au and Li:Al or LiF/Al) exhibited efficient energy transfer and enhanced electroluminescence (EL) emission. The operating light-emission mechanisms were discussed based on EL photos acquired using a charge-coupled device (CCD) camera.",

author = "Kim, {Dae Kyu} and Oh, {Jeong Do} and Kim, {Jang Woon} and Lee, {Han Young} and Choi, {Jong Ho}",

note = "Funding Information: This work was supported by a grant from the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT and Future Planning (NRF2014R1A2A2A01005719), the Basic Science Research Program through the NRF funded by the Ministry of Education (NRF20100020209). Publisher Copyright: {\textcopyright} 2016 American Chemical Society. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

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doi = "10.1021/acs.jpcc.6b02964",

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AU - Kim, Dae Kyu

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AU - Kim, Jang Woon

AU - Lee, Han Young

AU - Choi, Jong Ho

N1 - Funding Information: This work was supported by a grant from the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT and Future Planning (NRF2014R1A2A2A01005719), the Basic Science Research Program through the NRF funded by the Ministry of Education (NRF20100020209). Publisher Copyright: © 2016 American Chemical Society. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

PY - 2016/6/30

Y1 - 2016/6/30

N2 - Heterojunction-based organic light-emitting field-effect transistors (OLEFETs) with a top-contact, long-channel geometry were fabricated and comparatively characterized. The neutral cluster beam deposition (NCBD) method was used to successively deposit two layers of p-type pentacene and n-type tris(8-hydroxyquinoline)aluminum (Alq3). For doped OLEFETs, 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) was used as a highly fluorescent dye dopant to enhance the light-emission efficiency and change the emission color. OLEFETs revealed fine device characteristics based on deposition of highly crystalline active layers. The combination of the highly fluorescent DCM doping and asymmetric electrode configuration (Au and Li:Al or LiF/Al) exhibited efficient energy transfer and enhanced electroluminescence (EL) emission. The operating light-emission mechanisms were discussed based on EL photos acquired using a charge-coupled device (CCD) camera.

AB - Heterojunction-based organic light-emitting field-effect transistors (OLEFETs) with a top-contact, long-channel geometry were fabricated and comparatively characterized. The neutral cluster beam deposition (NCBD) method was used to successively deposit two layers of p-type pentacene and n-type tris(8-hydroxyquinoline)aluminum (Alq3). For doped OLEFETs, 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) was used as a highly fluorescent dye dopant to enhance the light-emission efficiency and change the emission color. OLEFETs revealed fine device characteristics based on deposition of highly crystalline active layers. The combination of the highly fluorescent DCM doping and asymmetric electrode configuration (Au and Li:Al or LiF/Al) exhibited efficient energy transfer and enhanced electroluminescence (EL) emission. The operating light-emission mechanisms were discussed based on EL photos acquired using a charge-coupled device (CCD) camera.

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Effects of Doping and Electrode Contacts on Performance of Organic Light-Emitting Transistors Based on Pentacene and Tris(8-hydroxyquinoline)aluminum

Abstract

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