Effects of single walled carbon nanotubes on the electroluminescent performance of organic light-emitting diodes

Ming Shao; Matthew P. Garrett; Xinjun Xu; Ilia N. Ivanov; Stanislaus S. Wong; Bin Hu

doi:10.1016/j.orgel.2011.03.003

Effects of single walled carbon nanotubes on the electroluminescent performance of organic light-emitting diodes

Ming Shao
, Matthew P. Garrett
, Xinjun Xu
, Ilia N. Ivanov
, Stanislaus S. Wong
, Bin Hu

Chemistry

University of Tennessee
Huazhong University of Science and Technology
University of Science and Technology Beijing
Oak Ridge National Laboratory

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

4 Scopus citations

Abstract

Effects of single walled carbon nanotubes (SWNTs) on the electroluminescent performance of organic light-emitting diodes (OLEDs) have been investigated by mixing them in a hole-conducting layer and in a light-emitting layer in OLEDs. We found that SWNTs play different roles when used as polymer:SWNT composites in OLEDs. When used in a hole-conducting layer, SWNTs facilitate the charge transport in the transport layer and on the other hand they also act as the exciton quenching centers at the transporting/emitting interface provided their concentration is high enough. When used in a light-emitting layer, SWNTs act as an n-type dopant to increase electron transport in p-type electroluminescent film and subsequently improve the balancing degree of bipolar injection, leading to an enhancement in the electroluminescence efficiency.

Original language	English
Pages (from-to)	1098-1102
Number of pages	5
Journal	Organic Electronics
Volume	12
Issue number	6
DOIs	https://doi.org/10.1016/j.orgel.2011.03.003
State	Published - Jun 2011

Keywords

Carrier transport
Electroluminescence
Organic light-emitting diodes (OLEDs)
Single walled carbon nanotubes (SWNTs)

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10.1016/j.orgel.2011.03.003

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title = "Effects of single walled carbon nanotubes on the electroluminescent performance of organic light-emitting diodes",

abstract = "Effects of single walled carbon nanotubes (SWNTs) on the electroluminescent performance of organic light-emitting diodes (OLEDs) have been investigated by mixing them in a hole-conducting layer and in a light-emitting layer in OLEDs. We found that SWNTs play different roles when used as polymer:SWNT composites in OLEDs. When used in a hole-conducting layer, SWNTs facilitate the charge transport in the transport layer and on the other hand they also act as the exciton quenching centers at the transporting/emitting interface provided their concentration is high enough. When used in a light-emitting layer, SWNTs act as an n-type dopant to increase electron transport in p-type electroluminescent film and subsequently improve the balancing degree of bipolar injection, leading to an enhancement in the electroluminescence efficiency.",

keywords = "Carrier transport, Electroluminescence, Organic light-emitting diodes (OLEDs), Single walled carbon nanotubes (SWNTs)",

author = "Ming Shao and Garrett, \{Matthew P.\} and Xinjun Xu and Ivanov, \{Ilia N.\} and Wong, \{Stanislaus S.\} and Bin Hu",

year = "2011",

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doi = "10.1016/j.orgel.2011.03.003",

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journal = "Organic Electronics",

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AU - Shao, Ming

AU - Garrett, Matthew P.

AU - Xu, Xinjun

AU - Ivanov, Ilia N.

AU - Wong, Stanislaus S.

AU - Hu, Bin

PY - 2011/6

Y1 - 2011/6

N2 - Effects of single walled carbon nanotubes (SWNTs) on the electroluminescent performance of organic light-emitting diodes (OLEDs) have been investigated by mixing them in a hole-conducting layer and in a light-emitting layer in OLEDs. We found that SWNTs play different roles when used as polymer:SWNT composites in OLEDs. When used in a hole-conducting layer, SWNTs facilitate the charge transport in the transport layer and on the other hand they also act as the exciton quenching centers at the transporting/emitting interface provided their concentration is high enough. When used in a light-emitting layer, SWNTs act as an n-type dopant to increase electron transport in p-type electroluminescent film and subsequently improve the balancing degree of bipolar injection, leading to an enhancement in the electroluminescence efficiency.

AB - Effects of single walled carbon nanotubes (SWNTs) on the electroluminescent performance of organic light-emitting diodes (OLEDs) have been investigated by mixing them in a hole-conducting layer and in a light-emitting layer in OLEDs. We found that SWNTs play different roles when used as polymer:SWNT composites in OLEDs. When used in a hole-conducting layer, SWNTs facilitate the charge transport in the transport layer and on the other hand they also act as the exciton quenching centers at the transporting/emitting interface provided their concentration is high enough. When used in a light-emitting layer, SWNTs act as an n-type dopant to increase electron transport in p-type electroluminescent film and subsequently improve the balancing degree of bipolar injection, leading to an enhancement in the electroluminescence efficiency.

KW - Carrier transport

KW - Electroluminescence

KW - Organic light-emitting diodes (OLEDs)

KW - Single walled carbon nanotubes (SWNTs)

UR - https://www.scopus.com/pages/publications/79954595083

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M3 - Article

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JF - Organic Electronics

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ER -

Effects of single walled carbon nanotubes on the electroluminescent performance of organic light-emitting diodes

Abstract

Keywords

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