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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 34, Number 5
BKCSDE 34(5)
May 20, 2013 

 
Title
A Multifunctional Material Based on Triphenylamine and a Naphthyl Unit for Organic Light-Emitting Diodes, Organic Solar Cells, and Organic Thin-Film Transistors
Author
Jongchul Kwon, Myoung Ki Kim, Jung-Pyo Hong, Woochul Lee, Seonghoon Lee, Jong-In Hong*
Keywords
Multifunctional materials, Organic light-emitting diode, Organic solar cells, Organic thin-film transistor
Abstract
We have developed a new multifunctional material, 4,4',4''-tris(4-naphthalen-2-yl-phenyl)amine (2-TNPA), which can be used as a blue-emitting and hole-transporting material in organic light-emitting diodes (OLEDs), as well as a donor material in organic solar cells (OSCs) and an active material in organic thin-film transistors (OTFTs). The OLED device doped with 3% 2-TNPA shows a maximum current efficiency of 3.0 cdA–1 and an external quantum efficiency of 3.0%. 2-TNPA is a more efficient hole-transporting material than 4,4'-bis[N- (naphthyl-N-phenylamino)]biphenyl (NPD). Furthermore, 2-TNPA shows a power-conversion efficiency of 0.39% in OSC and a field-effect mobility of 3.2 × 10–4 cm2V–1s–1 in OTFTs.
Page
1355 - 1360
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