Enhanced luminescence and photocurrent of organic microrod/ZnO nanoparticle hybrid system: Nanoscale optical and electrical characteristics

Guru P. Neupane; Krishna P. Dhakal; Eun Hei Cho; Bong Gi Kim; Seongchu Lim; Jubok Lee; Changwon Seo; Young Bum Kim; Min Su Kim; Jinsang Kim; Jinsoo Joo; Jeongyong Kim

doi:10.1007/s13391-015-4496-0

Enhanced luminescence and photocurrent of organic microrod/ZnO nanoparticle hybrid system: Nanoscale optical and electrical characteristics

Guru P. Neupane, Krishna P. Dhakal, Eun Hei Cho, Bong Gi Kim, Seongchu Lim, Jubok Lee, Changwon Seo, Young Bum Kim, Min Su Kim, Jinsang Kim, Jinsoo Joo, Jeongyong Kim

Department of Physics

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

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	https://doi.org/10.1007/s13391-015-4496-0
Publication status	Published - 2015 Sept 25

Bibliographical note

Publisher Copyright:
© 2015, The Korean Institute of Metals and Materials and Springer Science+Business Media Dordrecht.

Keywords

TSDB
ZnO
energy transfer
photocurrent
photoluminescence

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials

Access to Document

10.1007/s13391-015-4496-0

Cite this

Neupane, G. P., Dhakal, K. P., Cho, E. H., Kim, B. G., Lim, S., Lee, J., Seo, C., Kim, Y. B., Kim, M. S., Kim, J., Joo, J., & Kim, J. (2015). Enhanced luminescence and photocurrent of organic microrod/ZnO nanoparticle hybrid system: Nanoscale optical and electrical characteristics. Electronic Materials Letters, 11(5), 741-748. https://doi.org/10.1007/s13391-015-4496-0

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title = "Enhanced luminescence and photocurrent of organic microrod/ZnO nanoparticle hybrid system: Nanoscale optical and electrical characteristics",

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.]",

keywords = "TSDB, ZnO, energy transfer, photocurrent, photoluminescence",

author = "Neupane, {Guru P.} and Dhakal, {Krishna P.} and Cho, {Eun Hei} and Kim, {Bong Gi} and Seongchu Lim and Jubok Lee and Changwon Seo and Kim, {Young Bum} and Kim, {Min Su} and Jinsang Kim and Jinsoo Joo and Jeongyong Kim",

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doi = "10.1007/s13391-015-4496-0",

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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, Eun Hei

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.]

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KW - ZnO

KW - energy transfer

KW - photocurrent

KW - photoluminescence

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Enhanced luminescence and photocurrent of organic microrod/ZnO nanoparticle hybrid system: Nanoscale optical and electrical characteristics

Abstract

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Keywords

ASJC Scopus subject areas

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