Triphenylamine- and triazine-containing hydrogen bonded complexes: liquid crystalline supramolecular semiconductors

被引：10

作者：

Feringan, Beatriz ^{[1
]}

Termine, Roberto ^{[2
]}

Golemme, Attilio ^{[2
]}

Granadino-Roldan, Jose M. ^{[3
]}

Navarro, Amparo ^{[3
]}

Gimenez, Raquel ^{[1
]}

Sierra, Teresa ^{[1
]}

机构：

[1] Univ Zaragoza, Fac Ciencias, Dept Quim Organ, Inst Nanociencia & Mat Aragon INMA,CSIC, Zaragoza 50009, Spain

[2] Univ Calabria, Dipartimento Fis, CNR NANOTEC SS Rende, LASCAMM CR INSTM, I-87036 Arcavacata Di Rende, Italy

[3] Univ Jaen, Dept Quim Fis & Analit, Fac Ciencias Expt, Campus Las Lagunillas, Jaen 23071, Spain

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2021年 / 9卷 / 06期

关键词：

Liquid crystals;

D O I：

10.1039/d0tc05186a

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Despite the fact that triphenylamine derivatives have been widely explored as hole-transporting materials, studies on charge transport properties in the liquid crystal phase have been overlooked. Here, it is reported that triphenylamine liquid crystals can attain very high hole mobility values in a hexagonal columnar mesophase, up to mu approximate to 5 cm(2) V-1 s(-1). The columnar liquid crystalline phase was obtained by a proper design of a supramolecular mesogen, and this is unprecedented for triphenylamine liquid crystals. In fact, the supramolecules were formed by hydrogen-bonded 1 : 3 complexes of a star-shaped triazine core and three triphenylamine peripheral units. The resulting hexagonal columnar mesophase acts as a successful scaffold that confines TPA units at the periphery of columns. Challenging DFT theoretical investigations into a model based on such supramolecular systems involving a large number of atoms were undertaken to explore the stability and geometry of the complexes and their electronic properties.

引用

页码：1972 / 1982

页数：11

共 73 条

[1] Unravelling the Pathway Complexity in Conformationally Flexible N-Centered Triarylamine Trisamides [J].