Charge transport and injection to phenylamine-based hole transporters for OLEDs applications

Shu K. So; Shing C. Tse; Ka L. Tong

doi:10.1109/JDT.2007.895342

Charge transport and injection to phenylamine-based hole transporters for OLEDs applications

Shu K. So^*, Shing C. Tse, Ka L. Tong

^*Corresponding author for this work

Department of Physics

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

42 Citations (Scopus)

Abstract

We studied the hole injection and transporting properties of four phenylamine-based hole-transporters useful for organic light-emitting diodes. The hole-transporting properties were examined in details by time-of-flight technique whereas their hole-injecting properties by current-voltage measurements and dark-current space-charge-limited-current technique (DI-SCLC). All materials were found to exhibit essentially trap-free hole transports. We discovered that a conducting polymeric anode, PEDOT:PSS, can act effectively as an Ohmic contact for hole injection into the PA compounds for DI-SCLC experiments.

Original language	English
Pages (from-to)	225-232
Number of pages	8
Journal	IEEE/OSA Journal of Display Technology
Volume	3
Issue number	2
DOIs	https://doi.org/10.1109/JDT.2007.895342
Publication status	Published - Jun 2007

Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

User-Defined Keywords

Carrier mobility
Charge transport
Organic light-emitting diodes (OLEDs)
Phenylamines

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10.1109/JDT.2007.895342

Cite this

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title = "Charge transport and injection to phenylamine-based hole transporters for OLEDs applications",

abstract = "We studied the hole injection and transporting properties of four phenylamine-based hole-transporters useful for organic light-emitting diodes. The hole-transporting properties were examined in details by time-of-flight technique whereas their hole-injecting properties by current-voltage measurements and dark-current space-charge-limited-current technique (DI-SCLC). All materials were found to exhibit essentially trap-free hole transports. We discovered that a conducting polymeric anode, PEDOT:PSS, can act effectively as an Ohmic contact for hole injection into the PA compounds for DI-SCLC experiments.",

keywords = "Carrier mobility, Charge transport, Organic light-emitting diodes (OLEDs), Phenylamines",

author = "So, {Shu K.} and Tse, {Shing C.} and Tong, {Ka L.}",

note = "Funding Information: Manuscript received July 26, 2006; revised August 18, 2006. This work was supported in part by the Research Grant Council of Hong Kong, Hong Kong, China, under Grant HKBU/2173/04E and by the Research Committee of Hong Kong Baptist University, Kowloon, Hong Kong, under Grant #FRG/05-06/II-41.",

year = "2007",

month = jun,

doi = "10.1109/JDT.2007.895342",

language = "English",

volume = "3",

pages = "225--232",

journal = "IEEE/OSA Journal of Display Technology",

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AU - So, Shu K.

AU - Tse, Shing C.

AU - Tong, Ka L.

N1 - Funding Information: Manuscript received July 26, 2006; revised August 18, 2006. This work was supported in part by the Research Grant Council of Hong Kong, Hong Kong, China, under Grant HKBU/2173/04E and by the Research Committee of Hong Kong Baptist University, Kowloon, Hong Kong, under Grant #FRG/05-06/II-41.

PY - 2007/6

Y1 - 2007/6

N2 - We studied the hole injection and transporting properties of four phenylamine-based hole-transporters useful for organic light-emitting diodes. The hole-transporting properties were examined in details by time-of-flight technique whereas their hole-injecting properties by current-voltage measurements and dark-current space-charge-limited-current technique (DI-SCLC). All materials were found to exhibit essentially trap-free hole transports. We discovered that a conducting polymeric anode, PEDOT:PSS, can act effectively as an Ohmic contact for hole injection into the PA compounds for DI-SCLC experiments.

AB - We studied the hole injection and transporting properties of four phenylamine-based hole-transporters useful for organic light-emitting diodes. The hole-transporting properties were examined in details by time-of-flight technique whereas their hole-injecting properties by current-voltage measurements and dark-current space-charge-limited-current technique (DI-SCLC). All materials were found to exhibit essentially trap-free hole transports. We discovered that a conducting polymeric anode, PEDOT:PSS, can act effectively as an Ohmic contact for hole injection into the PA compounds for DI-SCLC experiments.

KW - Carrier mobility

KW - Charge transport

KW - Organic light-emitting diodes (OLEDs)

KW - Phenylamines

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DO - 10.1109/JDT.2007.895342

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JF - IEEE/OSA Journal of Display Technology

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Charge transport and injection to phenylamine-based hole transporters for OLEDs applications

Abstract

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