Abstract
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 nm and 405 nm showed the significant enhancement of the PC from the hybrid system, where the resonant excitation of the laser (355 nm) corresponding to the absorption of both ZnO and TSDB caused ∼3 times enhancement of the PC from the ZnO/TSDB hybrid microrods. [Figure not available: see fulltext.][Figure not available: see fulltext.]
| Original language | English |
|---|---|
| Pages (from-to) | 741-748 |
| Number of pages | 8 |
| Journal | Electronic Materials Letters |
| Volume | 11 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2015 Sep 25 |
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Keywords
- energy transfer
- photocurrent
- photoluminescence
- TSDB
- ZnO
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
Cite this
Enhanced luminescence and photocurrent of organic microrod/ZnO nanoparticle hybrid system : Nanoscale optical and electrical characteristics. / Neupane, Guru P.; Dhakal, Krishna P.; Cho, EunHei H.; Kim, Bong Gi; Lim, Seongchu; Lee, Jubok; Seo, Changwon; Kim, Young Bum; Kim, Min Su; Kim, Jinsang; Joo, Jinsoo; Kim, Jeongyong.
In: Electronic Materials Letters, Vol. 11, No. 5, 25.09.2015, p. 741-748.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Enhanced luminescence and photocurrent of organic microrod/ZnO nanoparticle hybrid system
T2 - Nanoscale optical and electrical characteristics
AU - Neupane, Guru P.
AU - Dhakal, Krishna P.
AU - Cho, EunHei H.
AU - Kim, Bong Gi
AU - Lim, Seongchu
AU - Lee, Jubok
AU - Seo, Changwon
AU - Kim, Young Bum
AU - Kim, Min Su
AU - Kim, Jinsang
AU - Joo, Jinsoo
AU - Kim, Jeongyong
PY - 2015/9/25
Y1 - 2015/9/25
N2 - 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 nm and 405 nm showed the significant enhancement of the PC from the hybrid system, where the resonant excitation of the laser (355 nm) corresponding to the absorption of both ZnO and TSDB caused ∼3 times enhancement of the PC from the ZnO/TSDB hybrid microrods. [Figure not available: see fulltext.][Figure not available: see fulltext.]
AB - 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 nm and 405 nm showed the significant enhancement of the PC from the hybrid system, where the resonant excitation of the laser (355 nm) corresponding to the absorption of both ZnO and TSDB caused ∼3 times enhancement of the PC from the ZnO/TSDB hybrid microrods. [Figure not available: see fulltext.][Figure not available: see fulltext.]
KW - energy transfer
KW - photocurrent
KW - photoluminescence
KW - TSDB
KW - ZnO
UR - http://www.scopus.com/inward/record.url?scp=84942124122&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84942124122&partnerID=8YFLogxK
U2 - 10.1007/s13391-015-4496-0
DO - 10.1007/s13391-015-4496-0
M3 - Article
AN - SCOPUS:84942124122
VL - 11
SP - 741
EP - 748
JO - Electronic Materials Letters
JF - Electronic Materials Letters
SN - 1738-8090
IS - 5
ER -