NDLI: Sub-400 nm ultra-violet luminescence of (4'-methoxy)-9-phenylcarbazole

Content Provider	IEEE Xplore Digital Library
Author	Li, K.F. Luo, L. Leung, L.M.L. Cheah, K.W.
Copyright Year	2003
Description	Author affiliation: Dept. of Phys., Hong Kong Baptist Univ., China (Li, K.F.; Luo, L.)
Abstract	Intense ultra-violet photoluminescence at 380 nm (3.26 eV) was observed from a small organic molecule, (4'-methoxy)-9-phenylcarbazole (MeOKPA) at room temperature. The intensity is at least three times of that of Alq/sub 3/, which is most widely used for organic LED application. Excitation spectrum and low temperature photoluminescence (PL) results show that the shortest emission is at 360 nm (3.44 eV). The small stoke shift of 180 meV from excitation to emission indicates that the radiative recombination of MeOKPA is extremely efficient and the compound is robust over a wide temperature range. Moreover, it also has strong upconversion efficiency. Its upconversion PL is a little different from normal PL. The result indicates that it is a strong candidate as organic laser.
Sponsorship	Nat. Sci. Council Minist. of Educ. Taipei City Gov. Graduate Inst. of Electro-Optical Eng., Nat. Taiwan Univ. Center for Inf. and Electron. Technol., Nat. Taiwan Univ. Center for Nano Sci. and Technol., Nat. Taiwan Univ. Southern Taiwan Opto-electron. Center of Excellence, Nat. Sun Yat-Sen Univ. Inst. of Electro-Optical Eng., Nat. Chiao Tung Univ. Inst. of Optical Sci., Nat. Central Univ. Inst. of Atomic and Molecular Sci., Academia Sinica Opto-Electron. and Syst. Lab., Ind. Technol. Res. Inst. Int. Program Center, Ind. Technol. Res. Inst. AOARD/AFOSR and AFOFE, USA RiTdisplay Corp. Hamamatsu Photonics K.K. Chunghwa Telecom Lab
File Size	78411
File Format	PDF
ISBN	0780377664
DOI	10.1109/CLEOPR.2003.1274725
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-12-15
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Luminescence Photoluminescence Organic materials Temperature Light emitting diodes Biomedical optical imaging Biological materials Optical materials Inorganic materials Physics
Content Type	Text
Resource Type	Article

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