Photoluminescent properties of dye-doped poly(N-vinyleabzole) (PVK) in microcavity

Dongjiang Wu, Lijun Wang, Yun Liu, Shumei Wang, Yongqiang Ning, Changqing Jin, Jiamin Zhao, Xingyuan Liu, Shengli Wu, Xiaodong He, Lixiang Wang, Dongge Ma, Daike Wang, Xiabin Jing, Fosong Wang

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

A surface emitting microcavity was formed by sandwiching a polymer film containing poly(N-vinyleabzole) (PVK). 8-hydroxyquinoline aluminum (Alq3) and 4-(Dicyanome thylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-Pyran(DCM) between a distributed Bragg reflector (DBR) with a reflectivity of 99% and a silver film. The sample was optically pumped with 250 ps pulses at 2 Hz repetition rate by a 355 nm line of the third harmonic of a mode-lock Nd:YAG laser. The lasing phenomenon was observed in DCM-doped PVK microcavity. The full width at half maximum (FWHM) was 3 nm with the peak wavelength at 602 nm. The threshold energy for lasing was estimated to be about 3 μJ.

Original languageEnglish
Pages (from-to)198-200
Number of pages3
JournalThin Solid Films
Volume363
Issue number1
DOIs
StatePublished - Mar 1 2000
EventThe Asia-Pacific Symposium on Organic Electroluminescent Materials and Devices - Hong Kong, Hong Kong
Duration: Jun 8 1999Jun 11 1999

Funding

This work was supported by National Natural Science Foundation of China; the Key Project of Chinese Academy of Sciences and the Hundreds of Talents Program in Chinese Academy of Sciences.

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