Journal
ELECTRONIC MATERIALS LETTERS
Volume 11, Issue 5, Pages 741-748Publisher
KOREAN INST METALS MATERIALS
DOI: 10.1007/s13391-015-4496-0
Keywords
TSDB; ZnO; photoluminescence; energy transfer; photocurrent
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Funding
- National Research Foundation [2012R1A1A2A10043220]
- [IBS-R011-D1]
- National Research Foundation of Korea [2012R1A1A2A10043220] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We studied the enhanced photoluminescence (PL) and photocurrent (PC) of 1,4-bis(3,5-bis(trifluoromethyl)styryl)-2,5-dibromobenzene (TSDB) microrods decorated with ZnO nanoparticles (NPs). Chemically synthesized crystalline ZnO NPs with an average size of 40 nm were functionalized with (3-aminopropyl)trimethoxysilane to result in the chemical bonding of the NPs onto the surface of the TSDB microrods. We observed a 2-fold PL enhancement in the ZnO/TSDB hybrid microrods compared with the PL of the pure TSDB microrods. In addition, PC measurement carried out on the TSDB and ZnO/TSDB hybrid microrods at two different excitation wavelengths of 355 urn and 405 nm showed the significant enhancement of the PC from the hybrid system, where the resonant excitation of the laser (355 urn) corresponding to the absorption of both ZnO and TSDB caused 3 times enhancement of the PC from the ZnO/TSDB hybrid microrods.
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