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47.1: Invited Paper : Charge Transporters for OLED's: Strategies and Performance
Author(s) -
Kathirgamanathan Poopathy,
Arkley Vincent,
Surendrakumar Sivagnanasundram,
Chan Yun Fu,
AntipanLara Juan,
Ganeshamurugan Subramaniam,
Kumaraverl Muttulingham,
Paramaswara Gnanamoly,
Ravichandran Seenivasagam
Publication year - 2008
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3069762
Subject(s) - oled , charge (physics) , voltage , optoelectronics , electron transport chain , doping , power (physics) , electron , materials science , power consumption , electrical engineering , computer science , chemistry , physics , nanotechnology , engineering , thermodynamics , nuclear physics , biochemistry , layer (electronics) , quantum mechanics
There is a continuing demand for the reduction in power consumption, operating voltage and lengthening the lifetime of OLED's. Charge transport (hole and electron) materials (pure or doped) are an integral part of any OLED. It has been reported that nearly 60% of the total electric power is lost through the charge transport layers, nearly 36% through etl and 5.7% through eil and the remainder through, hil, htl and hbl. The life time is also critically dependent on the nature of the charge transporters employed. Thus, there is an urgent need for electron transporters with high mobility and stability. We present and demonstrate here some strategies as to the selection of appropriate materials for efficient electron transport and injection resulting in lower operating voltage, higher efficiencies and longer life‐time.