Optoelectronic characteristics of close-packed HgTe nanoparticles in the infrared range

Hyunsuk Kim; Kyoungah Cho; Byungjun Park; Jin Hyoung Kim; Jun Woo Lee; Sangsig Kim; Taeyong Noh; Eunjoo Jang

doi:10.1016/j.ssc.2005.11.037

Optoelectronic characteristics of close-packed HgTe nanoparticles in the infrared range

Hyunsuk Kim, Kyoungah Cho, Byungjun Park, Jin Hyoung Kim, Jun Woo Lee, Sangsig Kim, Taeyong Noh, Eunjoo Jang

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

18 Citations (Scopus)

Abstract

Absorption, photoluminescence (PL), photoresponse, and I-V measurements were made for a close-packed HgTe nanoparticle film without organic capping materials to investigate its optoelectronic characteristics in the infrared (IR) range. In the absorption and PL spectra taken for the close-packed nanoparticle film, the wavelength of exciton peak was red-shifted, compared with 1-thioglycerol capped HgTe nanoparticles dispersed in solution. For the HgTe nanoparticle film, dark current was below several pA level, current was increased by about three orders of magnitude at a biased voltage of 3 V under the illumination, and photoresponse was very rapid compared with 1-thioglycerol capped HgTe nanoparticles. These optoelectronic characteristics illustrate that HgTe nanoparticles are one of promising materials for the photodetector in the IR range. Finally, the origin for the increase of photocurrent with increasing temperature observed in this study will be discussed.

Original language	English
Pages (from-to)	315-319
Number of pages	5
Journal	Solid State Communications
Volume	137
Issue number	6
DOIs	https://doi.org/10.1016/j.ssc.2005.11.037
Publication status	Published - 2006 Feb

Bibliographical note

Funding Information:
This work was supported by the National Research Laboratory Program, the 0.1 Terabit Non-Volatile Memory Development, National R&D Project for Nano Science and Technology, National Nuclear Technology Program supported by Ministry of Science and Technology (MOST), and Center for Integrated-Nano-Systems (CINS) supported by Korea Research Foundation (KRF-2004-005-D00087).

Keywords

A. HgTe nanoparticles
B. Trap-mediated hopping process
D. Photocurrent
E. Photoluminesence

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/j.ssc.2005.11.037

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title = "Optoelectronic characteristics of close-packed HgTe nanoparticles in the infrared range",

abstract = "Absorption, photoluminescence (PL), photoresponse, and I-V measurements were made for a close-packed HgTe nanoparticle film without organic capping materials to investigate its optoelectronic characteristics in the infrared (IR) range. In the absorption and PL spectra taken for the close-packed nanoparticle film, the wavelength of exciton peak was red-shifted, compared with 1-thioglycerol capped HgTe nanoparticles dispersed in solution. For the HgTe nanoparticle film, dark current was below several pA level, current was increased by about three orders of magnitude at a biased voltage of 3 V under the illumination, and photoresponse was very rapid compared with 1-thioglycerol capped HgTe nanoparticles. These optoelectronic characteristics illustrate that HgTe nanoparticles are one of promising materials for the photodetector in the IR range. Finally, the origin for the increase of photocurrent with increasing temperature observed in this study will be discussed.",

keywords = "A. HgTe nanoparticles, B. Trap-mediated hopping process, D. Photocurrent, E. Photoluminesence",

author = "Hyunsuk Kim and Kyoungah Cho and Byungjun Park and Kim, {Jin Hyoung} and Lee, {Jun Woo} and Sangsig Kim and Taeyong Noh and Eunjoo Jang",

note = "Funding Information: This work was supported by the National Research Laboratory Program, the 0.1 Terabit Non-Volatile Memory Development, National R&D Project for Nano Science and Technology, National Nuclear Technology Program supported by Ministry of Science and Technology (MOST), and Center for Integrated-Nano-Systems (CINS) supported by Korea Research Foundation (KRF-2004-005-D00087).",

year = "2006",

month = feb,

doi = "10.1016/j.ssc.2005.11.037",

language = "English",

volume = "137",

pages = "315--319",

journal = "Solid State Communications",

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T1 - Optoelectronic characteristics of close-packed HgTe nanoparticles in the infrared range

AU - Kim, Hyunsuk

AU - Cho, Kyoungah

AU - Park, Byungjun

AU - Kim, Jin Hyoung

AU - Lee, Jun Woo

AU - Kim, Sangsig

AU - Noh, Taeyong

AU - Jang, Eunjoo

N1 - Funding Information: This work was supported by the National Research Laboratory Program, the 0.1 Terabit Non-Volatile Memory Development, National R&D Project for Nano Science and Technology, National Nuclear Technology Program supported by Ministry of Science and Technology (MOST), and Center for Integrated-Nano-Systems (CINS) supported by Korea Research Foundation (KRF-2004-005-D00087).

PY - 2006/2

Y1 - 2006/2

N2 - Absorption, photoluminescence (PL), photoresponse, and I-V measurements were made for a close-packed HgTe nanoparticle film without organic capping materials to investigate its optoelectronic characteristics in the infrared (IR) range. In the absorption and PL spectra taken for the close-packed nanoparticle film, the wavelength of exciton peak was red-shifted, compared with 1-thioglycerol capped HgTe nanoparticles dispersed in solution. For the HgTe nanoparticle film, dark current was below several pA level, current was increased by about three orders of magnitude at a biased voltage of 3 V under the illumination, and photoresponse was very rapid compared with 1-thioglycerol capped HgTe nanoparticles. These optoelectronic characteristics illustrate that HgTe nanoparticles are one of promising materials for the photodetector in the IR range. Finally, the origin for the increase of photocurrent with increasing temperature observed in this study will be discussed.

AB - Absorption, photoluminescence (PL), photoresponse, and I-V measurements were made for a close-packed HgTe nanoparticle film without organic capping materials to investigate its optoelectronic characteristics in the infrared (IR) range. In the absorption and PL spectra taken for the close-packed nanoparticle film, the wavelength of exciton peak was red-shifted, compared with 1-thioglycerol capped HgTe nanoparticles dispersed in solution. For the HgTe nanoparticle film, dark current was below several pA level, current was increased by about three orders of magnitude at a biased voltage of 3 V under the illumination, and photoresponse was very rapid compared with 1-thioglycerol capped HgTe nanoparticles. These optoelectronic characteristics illustrate that HgTe nanoparticles are one of promising materials for the photodetector in the IR range. Finally, the origin for the increase of photocurrent with increasing temperature observed in this study will be discussed.

KW - A. HgTe nanoparticles

KW - B. Trap-mediated hopping process

KW - D. Photocurrent

KW - E. Photoluminesence

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M3 - Article

AN - SCOPUS:31344445947

SN - 0038-1098

VL - 137

SP - 315

EP - 319

JO - Solid State Communications

JF - Solid State Communications

IS - 6

ER -

Optoelectronic characteristics of close-packed HgTe nanoparticles in the infrared range

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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