Journal article

Authors list: Matsuo, T; Rössiger, C; Herr, J; Göttlich, R; Schlettwein, D; Mizuno, H; Sasaki, F; Yanagi, H

Publication year: 2020

Pages: 24057-24062

Journal: RSC Advances

Volume number: 10

Issue number: 40

Open access status: Gold

DOI Link: https://doi.org/10.1039/d0ra04742b

Publisher: Royal Society of Chemistry

Abstract: 
As new candidates of thiophene/phenylene co-oligomer (TPCO) species, 5,5 ''-bis(4'-methoxy-[1,1'-biphenyl]-4-yl)-2,2':5',2 ''-terthiophene (BP3T-OMe) and 4',4 '''-([2,2':5',2 ''-terthiophene]-5,5 ''-diyl)bis(([1,1'-biphenyl]-4-carbonitrile)) (BP3T-CN) were synthesized for lasing applications. Although most unsubstituted TPCO species crystallize in monoclinic form, BP3T-OMe and BP3T-CN crystallized in orthorhombic and triclinic forms, respectively. Since the unsubstituted species, 5,5 ''-bis(4-biphenylyl)-2,2':5',2 ''-terthiophene (BP3T), shows unique and superior lasing performance in single crystals, the newly synthesized BP3T-OMe and BP3T-CN have possibilities to show different or improved optoelectronic characteristics. Amplified spontaneous emission (ASE) and optically pumped lasing were observed from both of the single crystals based on their well-shaped crystalline cavity and high group refractive index values of 3.7-5.3 for excellent light confinement. The lasing threshold for the BP3T-OMe crystal was lower than that for the BP3T-CN crystal, which was attributed to their different molecular orientation, standing in the former and inclining in the latter.

Harvard Citation style: Matsuo, T., Rössiger, C., Herr, J., Göttlich, R., Schlettwein, D., Mizuno, H., et al. (2020) Synthesis and characterization of methoxy- or cyano-substituted thiophene/phenylene co-oligomers for lasing application, RSC Advances, 10(40), pp. 24057-24062. https://doi.org/10.1039/d0ra04742b

APA Citation style: Matsuo, T., Rössiger, C., Herr, J., Göttlich, R., Schlettwein, D., Mizuno, H., Sasaki, F., & Yanagi, H. (2020). Synthesis and characterization of methoxy- or cyano-substituted thiophene/phenylene co-oligomers for lasing application. RSC Advances. 10(40), 24057-24062. https://doi.org/10.1039/d0ra04742b