Electrical properties of organic light-emitting diodes using PECCP Langmuir-Blodgett films

Ho Sik Lee; Doo Seok Kim; Jong Wook Park; Won Jae Lee; Kyung Uk Jang; Tae Wan Kim; Young Soo Kwon

doi:10.1016/j.tsf.2005.07.023

Electrical properties of organic light-emitting diodes using PECCP Langmuir-Blodgett films

Ho Sik Lee, Doo Seok Kim, Jong Wook Park, Won Jae Lee, Kyung Uk Jang, Tae Wan Kim, Young Soo Kwon

Research output: Contribution to journal › Conference article › peer-review

5 Citations (Scopus)

Abstract

Organic light-emitting diodes were fabricated using Langmuir-Blodgett (LB) technique with new emissive organic material. This new emissive organic material was synthesized and called PECCP [poly(3,6-N-2-ethylhexyl carbazolyl cyanoterephthalidene)], which has strong electron donor group and electron acceptor group in main chain repeated unit. This material has good solubility in common organic solvent and has a good stability in air. We made PECCP LB films and investigated current-voltage (I-V) characteristics in ITO/PECCP LB/Al and ITO/PECCP LB/Alq₃/Al structures, and the Alq₃ was used as an electron transport layer. We have observed that the peak in electroluminescent spectrum of ITO/PECCP LB/Alq₃/Al device shifts to lower wavelength as the number of LB layer increases. The electroluminescent peaks are at about 507 nm, 505 nm, 503 nm, and 491 nm when the number of LB layers are 5, 7, 9, and 11 layers, respectively. From the I-V characteristics, the barrier height was obtained using Fowler-Nordheim analysis and it is in the range of 0.18 eV-0.26 eV.

Original language	English
Pages (from-to)	402-405
Number of pages	4
Journal	Thin Solid Films
Volume	499
Issue number	1-2
DOIs	https://doi.org/10.1016/j.tsf.2005.07.023
Publication status	Published - 21 Mar 2006
Event	Proceedings of the Sixth International Conference on Nano-Molecular Electronics (ICNME 2004) - Duration: 15 Dec 2004 → 17 Dec 2004

Keywords

Langmuir-Blodgett films
OLEDs
PECCP

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10.1016/j.tsf.2005.07.023

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title = "Electrical properties of organic light-emitting diodes using PECCP Langmuir-Blodgett films",

abstract = "Organic light-emitting diodes were fabricated using Langmuir-Blodgett (LB) technique with new emissive organic material. This new emissive organic material was synthesized and called PECCP [poly(3,6-N-2-ethylhexyl carbazolyl cyanoterephthalidene)], which has strong electron donor group and electron acceptor group in main chain repeated unit. This material has good solubility in common organic solvent and has a good stability in air. We made PECCP LB films and investigated current-voltage (I-V) characteristics in ITO/PECCP LB/Al and ITO/PECCP LB/Alq3/Al structures, and the Alq3 was used as an electron transport layer. We have observed that the peak in electroluminescent spectrum of ITO/PECCP LB/Alq3/Al device shifts to lower wavelength as the number of LB layer increases. The electroluminescent peaks are at about 507 nm, 505 nm, 503 nm, and 491 nm when the number of LB layers are 5, 7, 9, and 11 layers, respectively. From the I-V characteristics, the barrier height was obtained using Fowler-Nordheim analysis and it is in the range of 0.18 eV-0.26 eV.",

keywords = "Langmuir-Blodgett films, OLEDs, PECCP",

author = "Lee, {Ho Sik} and Kim, {Doo Seok} and Park, {Jong Wook} and Lee, {Won Jae} and Jang, {Kyung Uk} and Kim, {Tae Wan} and Kwon, {Young Soo}",

year = "2006",

month = mar,

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doi = "10.1016/j.tsf.2005.07.023",

language = "English",

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journal = "Thin Solid Films",

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note = "Proceedings of the Sixth International Conference on Nano-Molecular Electronics (ICNME 2004) ; Conference date: 15-12-2004 Through 17-12-2004",

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TY - JOUR

T1 - Electrical properties of organic light-emitting diodes using PECCP Langmuir-Blodgett films

AU - Lee, Ho Sik

AU - Kim, Doo Seok

AU - Park, Jong Wook

AU - Lee, Won Jae

AU - Jang, Kyung Uk

AU - Kim, Tae Wan

AU - Kwon, Young Soo

PY - 2006/3/21

Y1 - 2006/3/21

N2 - Organic light-emitting diodes were fabricated using Langmuir-Blodgett (LB) technique with new emissive organic material. This new emissive organic material was synthesized and called PECCP [poly(3,6-N-2-ethylhexyl carbazolyl cyanoterephthalidene)], which has strong electron donor group and electron acceptor group in main chain repeated unit. This material has good solubility in common organic solvent and has a good stability in air. We made PECCP LB films and investigated current-voltage (I-V) characteristics in ITO/PECCP LB/Al and ITO/PECCP LB/Alq3/Al structures, and the Alq3 was used as an electron transport layer. We have observed that the peak in electroluminescent spectrum of ITO/PECCP LB/Alq3/Al device shifts to lower wavelength as the number of LB layer increases. The electroluminescent peaks are at about 507 nm, 505 nm, 503 nm, and 491 nm when the number of LB layers are 5, 7, 9, and 11 layers, respectively. From the I-V characteristics, the barrier height was obtained using Fowler-Nordheim analysis and it is in the range of 0.18 eV-0.26 eV.

AB - Organic light-emitting diodes were fabricated using Langmuir-Blodgett (LB) technique with new emissive organic material. This new emissive organic material was synthesized and called PECCP [poly(3,6-N-2-ethylhexyl carbazolyl cyanoterephthalidene)], which has strong electron donor group and electron acceptor group in main chain repeated unit. This material has good solubility in common organic solvent and has a good stability in air. We made PECCP LB films and investigated current-voltage (I-V) characteristics in ITO/PECCP LB/Al and ITO/PECCP LB/Alq3/Al structures, and the Alq3 was used as an electron transport layer. We have observed that the peak in electroluminescent spectrum of ITO/PECCP LB/Alq3/Al device shifts to lower wavelength as the number of LB layer increases. The electroluminescent peaks are at about 507 nm, 505 nm, 503 nm, and 491 nm when the number of LB layers are 5, 7, 9, and 11 layers, respectively. From the I-V characteristics, the barrier height was obtained using Fowler-Nordheim analysis and it is in the range of 0.18 eV-0.26 eV.

KW - Langmuir-Blodgett films

KW - OLEDs

KW - PECCP

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DO - 10.1016/j.tsf.2005.07.023

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SN - 0040-6090

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T2 - Proceedings of the Sixth International Conference on Nano-Molecular Electronics (ICNME 2004)

Y2 - 15 December 2004 through 17 December 2004

ER -

Electrical properties of organic light-emitting diodes using PECCP Langmuir-Blodgett films

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