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Abstract:
Rubrene thin films are deposited on quartz substrates and silver nanoparticles (Ag NPs) films by the thermal evaporation technique. The optical properties of rubrene thin film are investigated in a spectral range of 190 nm-1600 nm. The analysis of the absorption coefficient (alpha) reveals direct allowed transition with a corresponding energy of 2.24 eV. The photoluminescence (PL) peak of the rubrene thin film is observed to be at 563 nm (2.21 eV). With the use of Ag NPs which are fabricated by radio-frequency (RF) magnetron sputtering on the quartz, the PL intensity is 8.5 times that of as-deposited rubrene thin film. It is attributed to the fact that the surface plasmon enhances the photoluminescence.
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Source :
CHINESE PHYSICS B
ISSN: 1674-1056
Year: 2015
Issue: 4
Volume: 24
1 . 7 0 0
JCR@2022
ESI Discipline: PHYSICS;
ESI HC Threshold:190
JCR Journal Grade:2
CAS Journal Grade:3
Cited Count:
WoS CC Cited Count: 8
SCOPUS Cited Count: 9
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 7
Affiliated Colleges: