Vapor Phase Self-Assembly of Electrooptic Thin Films via Triple Hydrogen Bonds
摘要:
The donor-acceptor pi-electron chromophore 5-{4-[2-(4,6-diamino-[1,3,5]triazin-2-yl)-vinyl]-benzylidene}-pyrimidine-2,4,6-trione (DTPT) was designed and synthesized. Triple H-bonding interactions between neighboring molecules direct self-assembled chromophore alignment in a head-to-tail orientation using a straightforward vapor phase deposition process. Angle-dependent SHG interference patterns and the quadratic dependence of the 532 nm light output intensity on the thickness of the DTPT films for glass substrates coated on both sides demonstrate high, reproducible film quality and uniformity. XRD also demonstrates long-range order in the film and yields a molecular tilt angle in good agreement with polarized SHG data, clearly showing that out-of-plane ordering of chromophore molecules has been achieved.
Vapor Phase Self-Assembly of Electrooptic Thin Films via Triple Hydrogen Bonds
摘要:
The donor-acceptor pi-electron chromophore 5-{4-[2-(4,6-diamino-[1,3,5]triazin-2-yl)-vinyl]-benzylidene}-pyrimidine-2,4,6-trione (DTPT) was designed and synthesized. Triple H-bonding interactions between neighboring molecules direct self-assembled chromophore alignment in a head-to-tail orientation using a straightforward vapor phase deposition process. Angle-dependent SHG interference patterns and the quadratic dependence of the 532 nm light output intensity on the thickness of the DTPT films for glass substrates coated on both sides demonstrate high, reproducible film quality and uniformity. XRD also demonstrates long-range order in the film and yields a molecular tilt angle in good agreement with polarized SHG data, clearly showing that out-of-plane ordering of chromophore molecules has been achieved.
Vapor deposited electro-optic films self-assembled through hydrogen bonding
申请人:Marks J. Tobin
公开号:US20050127337A1
公开(公告)日:2005-06-16
The present invention introduces a novel route toward microstructural orientation into organic films, using multiple hydrogen-bonding to self-assemble chromophore molecules into electro-optic films in a net polar orientation. High-quality, thick films (up to micrometers) with molecular net dipole orientations can be fabricated under vacuum in hours. The film microstructure is intrinsically acentric; and the orientation is robust.
[EN] VAPOR DEPOSITED ELECTRO-OPTIC FILMS SELF-ASSEMBLED THROUGH HYDROGEN BONDING<br/>[FR] FILMS ELECTRO-OPTIQUES DEPOSES PAR EVAPORATION SOUS VIDE AUTOASSEMBLES PAR UNE LIAISON HYDROGENE
申请人:UNIV NORTHWESTERN
公开号:WO2004079434A2
公开(公告)日:2004-09-16
The present invention introduces a novel route toward microstructural orientation into organic films, using multiple hydrogen-bonding to self-assemble chromophore molecules into electro-optic films in a net polar orientation. Highquality, thick films (up to micrometers) with molecular net dipole orientations can be fabricated under vacuum in hours. The film microstructure is intrinsically acentric; and the orientation is robust.
Vapor Phase Self-Assembly of Electrooptic Thin Films via Triple Hydrogen Bonds
作者:Peiwang Zhu、Hu Kang、Antonio Facchetti、Guennadi Evmenenko、Pulak Dutta、Tobin J. Marks
DOI:10.1021/ja037164a
日期:2003.9.1
The donor-acceptor pi-electron chromophore 5-4-[2-(4,6-diamino-[1,3,5]triazin-2-yl)-vinyl]-benzylidene}-pyrimidine-2,4,6-trione (DTPT) was designed and synthesized. Triple H-bonding interactions between neighboring molecules direct self-assembled chromophore alignment in a head-to-tail orientation using a straightforward vapor phase deposition process. Angle-dependent SHG interference patterns and the quadratic dependence of the 532 nm light output intensity on the thickness of the DTPT films for glass substrates coated on both sides demonstrate high, reproducible film quality and uniformity. XRD also demonstrates long-range order in the film and yields a molecular tilt angle in good agreement with polarized SHG data, clearly showing that out-of-plane ordering of chromophore molecules has been achieved.