Relationship between molecular structure and photoinduced surface relief grating formation using azobenzene-based photochromic amorphous molecular materials

Autor:	Yasuhiko Shirota, Hiroyuki Ando, Takahiro Tanino, Toru Takahashi, Hideyuki Nakano
Rok vydání:	2008
Předmět:	chemistry.chemical_compound Photochromism Azobenzene Chemistry Materials Chemistry Molecule Moiety General Chemistry Photochemistry Glass transition Isomerization Cis trans isomerization Amorphous solid
Zdroj:	J. Mater. Chem.. 18:242-246
ISSN:	1364-5501 0959-9428
Popis:	The relationship between molecular structure and photoinduced surface relief grating (SRG) formation has been investigated by using azobenzene-based photochromic amorphous molecular materials. It was shown that modulation depth of SRG formed by irradiation with two coherent Ar+ laser beams (488 nm) becomes larger with increasing glass-transition temperature of the material. However, introduction of bulky substituents at both phenyl groups of the azobenzene moiety was undesirable for photoinduced SRG formation. These results were discussed from the viewpoints of frequency of trans–cis and cis–trans isomerization cycles and fluidity of the material upon irradiation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7279b9b34c07bc5e41b4a3d292f01ccc https://doi.org/10.1039/b713400b Zobrazit plný text záznamu