Phonon-suppressing intermolecular adhesives : catechol-based broadband organic THz generators

Yoon, Ga-Eun; Seok, Jin-Hong; Puc, Uros; Shin, Bong-Rim; Yoon, Woojin; Yun, Hoseop; Kim, Dongwook; Yu, In Cheol; Rotermund, Fabian; Jazbinsek, Mojca; Kwon, O-Pil

doi:10.1002/advs.202201391

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-27086

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Phonon-suppressing intermolecular adhesives : catechol-based broadband organic THz generators
Authors:	Yoon, Ga-Eun Seok, Jin-Hong Puc, Uros Shin, Bong-Rim Yoon, Woojin Yun, Hoseop Kim, Dongwook Yu, In Cheol Rotermund, Fabian Jazbinsek, Mojca Kwon, O-Pil
et. al:	No
DOI:	10.1002/advs.202201391 10.21256/zhaw-27086
Published in:	Advanced Science
Volume(Issue):	9
Issue:	24
Page(s):	2201391
Issue Date:	Aug-2022
Publisher / Ed. Institution:	Wiley
ISSN:	2198-3844
Language:	English
Subjects:	Catechol; Nonlinear optics; Organic crystal; Terahertz wave
Subject (DDC):	621.3: Electrical, communications, control engineering
Abstract:	Solid-state molecular phonons play a crucial role in the performance of diverse photonic and optoelectronic devices. In this work, new organic terahertz (THz) generators based on a catechol group that acts as a phonon suppressing intermolecular adhesive are developed. The catechol group is widely used in mussel-inspired mechanical adhesive chemistry. Newly designed organic electro-optic crystals consist of catechol-based nonlinear optical 4-(3,4-dihydroxystyryl)-1-methylpyridinium (DHP) cations and 4-(trifluoromethyl)benzenesulfonate anions (TFS), which both have multiple interionic interaction capability. Interestingly, compared to benchmark organic crystals for THz generators, DHP-TFS crystals concomitantly achieve top level values of the lowest void volume and the highest crystal density, resulting in an exceptionally small amplitude of solid-state molecular phonons. Simultaneously achieving small molecular phonon amplitude, large optical nonlinearity and good phase matching at infrared optical pump wavelengths, DHP-TFS crystals are capable of generating broadband THz waves of up to 16 THz with high optical-to-THz conversion efficiency; one order of magnitude higher than commercial inorganic THz generators.
URI:	https://digitalcollection.zhaw.ch/handle/11475/27086
Fulltext version:	Published version
License (according to publishing contract):	CC BY 4.0: Attribution 4.0 International
Departement:	School of Engineering
Organisational Unit:	Institute of Computational Physics (ICP)
Published as part of the ZHAW project:	Molecular Phonon-Mode Engineering for All-Organic Gap-Free THz Photonics
Appears in collections:	Publikationen School of Engineering

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Yoon, G.-E., Seok, J.-H., Puc, U., Shin, B.-R., Yoon, W., Yun, H., Kim, D., Yu, I. C., Rotermund, F., Jazbinsek, M., & Kwon, O.-P. (2022). Phonon-suppressing intermolecular adhesives : catechol-based broadband organic THz generators. Advanced Science, 9(24), 2201391. https://doi.org/10.1002/advs.202201391

Yoon, G.-E. et al. (2022) ‘Phonon-suppressing intermolecular adhesives : catechol-based broadband organic THz generators’, Advanced Science, 9(24), p. 2201391. Available at: https://doi.org/10.1002/advs.202201391.

G.-E. Yoon et al., “Phonon-suppressing intermolecular adhesives : catechol-based broadband organic THz generators,” Advanced Science, vol. 9, no. 24, p. 2201391, Aug. 2022, doi: 10.1002/advs.202201391.

YOON, Ga-Eun, Jin-Hong SEOK, Uros PUC, Bong-Rim SHIN, Woojin YOON, Hoseop YUN, Dongwook KIM, In Cheol YU, Fabian ROTERMUND, Mojca JAZBINSEK und O-Pil KWON, 2022. Phonon-suppressing intermolecular adhesives : catechol-based broadband organic THz generators. Advanced Science. August 2022. Bd. 9, Nr. 24, S. 2201391. DOI 10.1002/advs.202201391

Yoon, Ga-Eun, Jin-Hong Seok, Uros Puc, Bong-Rim Shin, Woojin Yoon, Hoseop Yun, Dongwook Kim, et al. 2022. “Phonon-Suppressing Intermolecular Adhesives : Catechol-Based Broadband Organic THz Generators.” Advanced Science 9 (24): 2201391. https://doi.org/10.1002/advs.202201391.

Yoon, Ga-Eun, et al. “Phonon-Suppressing Intermolecular Adhesives : Catechol-Based Broadband Organic THz Generators.” Advanced Science, vol. 9, no. 24, Aug. 2022, p. 2201391, https://doi.org/10.1002/advs.202201391.