Hybrid effects of CdSe/ZnS quantum dots on p-n heterojunction organic nanowire

Seok Ho Lee; Hyunsoo Lee; Sung Yeoun Park; Kihyun Kim; Yong Baek Lee; Jeongyong Kim; Kwang Sup Lee; Jinsoo Joo

doi:10.1016/j.synthmet.2012.12.022

Hybrid effects of CdSe/ZnS quantum dots on p-n heterojunction organic nanowire

Seok Ho Lee, Hyunsoo Lee, Sung Yeoun Park, Kihyun Kim, Yong Baek Lee, Jeongyong Kim, Kwang Sup Lee, Jinsoo Joo

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

6 Citations (Scopus)

Abstract

We demonstrate that the optical and photoresponsive electrical properties of a single nanowire (NW) consisting of a p-type poly(3-hexylthiophene) (P3HT) and n-type [6,6]-phenyl-C₆₁-butyric acid methyl ester (PCBM) were changed by hybridization with functionalized CdSe/ZnS QDs. Surface decorating and bulky infiltrating methods were employed for the hybridization of the QDs with the NWs. For the QD-infiltrated P3HT/PCBM single NW, the current density in both dark and light conditions was clearly enhanced and the nanoscale photoluminescence (PL) intensity was reduced due to the charge transfer effect. For the P3HT/PCBM NWs decorated with QDs, the current density was not changed much, however, the PL characteristics of both the QDs and the NWs were simultaneously changed by the energy transfer effect. From time-resolved PL spectra, the exciton lifetimes of the QDs in the hybrid NWs drastically decreased through the hybridization with the NWs, supporting the charge and/or energy transfer effects.

Original language	English
Pages (from-to)	1-6
Number of pages	6
Journal	Synthetic Metals
Volume	163
Issue number	1
DOIs	https://doi.org/10.1016/j.synthmet.2012.12.022
Publication status	Published - 2013

Bibliographical note

Funding Information:
This study was supported by a National Research Foundation (NRF) of Korea grant funded by the Korean government (MEST) (No. 2012R1A2A2A01045102 ). One of us, KSL, acknowledge funding of this work from the Midcareer Researcher Program through an NRF grant funded by the MEST (2011-0000247) and the Asian office of Aerospace and Development (F/A 2386-211-1-4043).

Keywords

Charge transfer
Energy transfer
Heterojunction nanowire
Poly(3-hexylthiophene)
Quantum dots

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.synthmet.2012.12.022

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title = "Hybrid effects of CdSe/ZnS quantum dots on p-n heterojunction organic nanowire",

abstract = "We demonstrate that the optical and photoresponsive electrical properties of a single nanowire (NW) consisting of a p-type poly(3-hexylthiophene) (P3HT) and n-type [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) were changed by hybridization with functionalized CdSe/ZnS QDs. Surface decorating and bulky infiltrating methods were employed for the hybridization of the QDs with the NWs. For the QD-infiltrated P3HT/PCBM single NW, the current density in both dark and light conditions was clearly enhanced and the nanoscale photoluminescence (PL) intensity was reduced due to the charge transfer effect. For the P3HT/PCBM NWs decorated with QDs, the current density was not changed much, however, the PL characteristics of both the QDs and the NWs were simultaneously changed by the energy transfer effect. From time-resolved PL spectra, the exciton lifetimes of the QDs in the hybrid NWs drastically decreased through the hybridization with the NWs, supporting the charge and/or energy transfer effects.",

keywords = "Charge transfer, Energy transfer, Heterojunction nanowire, Poly(3-hexylthiophene), Quantum dots",

author = "Lee, {Seok Ho} and Hyunsoo Lee and Park, {Sung Yeoun} and Kihyun Kim and Lee, {Yong Baek} and Jeongyong Kim and Lee, {Kwang Sup} and Jinsoo Joo",

note = "Funding Information: This study was supported by a National Research Foundation (NRF) of Korea grant funded by the Korean government (MEST) (No. 2012R1A2A2A01045102 ). One of us, KSL, acknowledge funding of this work from the Midcareer Researcher Program through an NRF grant funded by the MEST (2011-0000247) and the Asian office of Aerospace and Development (F/A 2386-211-1-4043). ",

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AU - Lee, Seok Ho

AU - Lee, Hyunsoo

AU - Park, Sung Yeoun

AU - Kim, Kihyun

AU - Lee, Yong Baek

AU - Kim, Jeongyong

AU - Lee, Kwang Sup

AU - Joo, Jinsoo

N1 - Funding Information: This study was supported by a National Research Foundation (NRF) of Korea grant funded by the Korean government (MEST) (No. 2012R1A2A2A01045102 ). One of us, KSL, acknowledge funding of this work from the Midcareer Researcher Program through an NRF grant funded by the MEST (2011-0000247) and the Asian office of Aerospace and Development (F/A 2386-211-1-4043).

PY - 2013

Y1 - 2013

N2 - We demonstrate that the optical and photoresponsive electrical properties of a single nanowire (NW) consisting of a p-type poly(3-hexylthiophene) (P3HT) and n-type [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) were changed by hybridization with functionalized CdSe/ZnS QDs. Surface decorating and bulky infiltrating methods were employed for the hybridization of the QDs with the NWs. For the QD-infiltrated P3HT/PCBM single NW, the current density in both dark and light conditions was clearly enhanced and the nanoscale photoluminescence (PL) intensity was reduced due to the charge transfer effect. For the P3HT/PCBM NWs decorated with QDs, the current density was not changed much, however, the PL characteristics of both the QDs and the NWs were simultaneously changed by the energy transfer effect. From time-resolved PL spectra, the exciton lifetimes of the QDs in the hybrid NWs drastically decreased through the hybridization with the NWs, supporting the charge and/or energy transfer effects.

AB - We demonstrate that the optical and photoresponsive electrical properties of a single nanowire (NW) consisting of a p-type poly(3-hexylthiophene) (P3HT) and n-type [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) were changed by hybridization with functionalized CdSe/ZnS QDs. Surface decorating and bulky infiltrating methods were employed for the hybridization of the QDs with the NWs. For the QD-infiltrated P3HT/PCBM single NW, the current density in both dark and light conditions was clearly enhanced and the nanoscale photoluminescence (PL) intensity was reduced due to the charge transfer effect. For the P3HT/PCBM NWs decorated with QDs, the current density was not changed much, however, the PL characteristics of both the QDs and the NWs were simultaneously changed by the energy transfer effect. From time-resolved PL spectra, the exciton lifetimes of the QDs in the hybrid NWs drastically decreased through the hybridization with the NWs, supporting the charge and/or energy transfer effects.

KW - Charge transfer

KW - Energy transfer

KW - Heterojunction nanowire

KW - Poly(3-hexylthiophene)

KW - Quantum dots

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JF - Synthetic Metals

IS - 1

ER -

Hybrid effects of CdSe/ZnS quantum dots on p-n heterojunction organic nanowire

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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