Conditions for optimal efficiency of PCBM-based terahertz modulators

Conditions for optimal efficiency of PCBM-based terahertz modulators

We demonstrate the conditions for optimal modulation efficiency of active terahertz modulators based on phenyl-C61-butyric acid methyl ester (PCBM)-silicon hybrid structures. Highly efficient active control of the terahertz wave modulation was realized by controlling organic film thickness, annealin...

Full description

Bibliographic Details
Main Authors: Hyung Keun Yoo, Hanju Lee, Kiejin Lee, Chul Kang, Chul-Sik Kee, In-Wook Hwang, Joong Wook Lee
Format: Article
Language:English
Published: AIP Publishing LLC 2017-10-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.5001561
id doaj-c25b0373e4b5433a8bb34a33f222d796
record_format Article
spelling doaj-c25b0373e4b5433a8bb34a33f222d7962020-11-25T02:01:53ZengAIP Publishing LLCAIP Advances2158-32262017-10-01710105008105008-610.1063/1.5001561016710ADVConditions for optimal efficiency of PCBM-based terahertz modulatorsHyung Keun Yoo0Hanju Lee1Kiejin Lee2Chul Kang3Chul-Sik Kee4In-Wook Hwang5Joong Wook Lee6S. LSI Metrology & Inspection, Samsung Electronics, Yongin 17113, KoreaDepartment of Physics, Sogang University, Seoul 121-742, KoreaDepartment of Physics, Sogang University, Seoul 121-742, KoreaIntegrated Optics Laboratory, Advanced Photonics Research Institute, GIST, Gwangju 500-712, KoreaIntegrated Optics Laboratory, Advanced Photonics Research Institute, GIST, Gwangju 500-712, KoreaIntegrated Optics Laboratory, Advanced Photonics Research Institute, GIST, Gwangju 500-712, KoreaDepartment of Physics and Optoelectronics Convergence Research Center, Chonnam National University, Gwangju 500-757, KoreaWe demonstrate the conditions for optimal modulation efficiency of active terahertz modulators based on phenyl-C61-butyric acid methyl ester (PCBM)-silicon hybrid structures. Highly efficient active control of the terahertz wave modulation was realized by controlling organic film thickness, annealing temperature, and laser excitation wavelength. Under the optimal conditions, the modulation efficiency reached nearly 100%. Charge distributions measured with a near-field scanning microwave microscanning technique corroborated the fact that the increase of photo-excited carriers due to the PCBM–silicon hybrid structure enables the enhancement of active modulation efficiency.http://dx.doi.org/10.1063/1.5001561
collection DOAJ
language English
format Article
sources DOAJ
author Hyung Keun Yoo
Hanju Lee
Kiejin Lee
Chul Kang
Chul-Sik Kee
In-Wook Hwang
Joong Wook Lee
spellingShingle Hyung Keun Yoo
Hanju Lee
Kiejin Lee
Chul Kang
Chul-Sik Kee
In-Wook Hwang
Joong Wook Lee
Conditions for optimal efficiency of PCBM-based terahertz modulators
AIP Advances
author_facet Hyung Keun Yoo
Hanju Lee
Kiejin Lee
Chul Kang
Chul-Sik Kee
In-Wook Hwang
Joong Wook Lee
author_sort Hyung Keun Yoo
title Conditions for optimal efficiency of PCBM-based terahertz modulators
title_short Conditions for optimal efficiency of PCBM-based terahertz modulators
title_full Conditions for optimal efficiency of PCBM-based terahertz modulators
title_fullStr Conditions for optimal efficiency of PCBM-based terahertz modulators
title_full_unstemmed Conditions for optimal efficiency of PCBM-based terahertz modulators
title_sort conditions for optimal efficiency of pcbm-based terahertz modulators
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2017-10-01
description We demonstrate the conditions for optimal modulation efficiency of active terahertz modulators based on phenyl-C61-butyric acid methyl ester (PCBM)-silicon hybrid structures. Highly efficient active control of the terahertz wave modulation was realized by controlling organic film thickness, annealing temperature, and laser excitation wavelength. Under the optimal conditions, the modulation efficiency reached nearly 100%. Charge distributions measured with a near-field scanning microwave microscanning technique corroborated the fact that the increase of photo-excited carriers due to the PCBM–silicon hybrid structure enables the enhancement of active modulation efficiency.
url http://dx.doi.org/10.1063/1.5001561
work_keys_str_mv AT hyungkeunyoo conditionsforoptimalefficiencyofpcbmbasedterahertzmodulators
AT hanjulee conditionsforoptimalefficiencyofpcbmbasedterahertzmodulators
AT kiejinlee conditionsforoptimalefficiencyofpcbmbasedterahertzmodulators
AT chulkang conditionsforoptimalefficiencyofpcbmbasedterahertzmodulators
AT chulsikkee conditionsforoptimalefficiencyofpcbmbasedterahertzmodulators
AT inwookhwang conditionsforoptimalefficiencyofpcbmbasedterahertzmodulators
AT joongwooklee conditionsforoptimalefficiencyofpcbmbasedterahertzmodulators
_version_ 1724955333385781248

Similar Items