scholarly journals Charge transport properties of a metal-free phthalocyanine discotic liquid crystal

2006 ◽  
Vol 7 (6) ◽  
pp. 495-499 ◽  
Author(s):  
C. Deibel ◽  
D. Janssen ◽  
P. Heremans ◽  
V. De Cupere ◽  
Y. Geerts ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Charge Transport ◽  
Transport Properties ◽  
Metal Free ◽  
Discotic Liquid Crystal

scholarly journals 3D Charge Transport Pathway in Organic Solar Cells via Incorporation of Discotic Liquid Crystal Columns

Solar RRL ◽  
2020 ◽  
Vol 4 (5) ◽  
pp. 2070056
Author(s):  
Tong Wang ◽  
Meng-Si Niu ◽  
Jia-Jia Guo ◽  
Kang-Ning Zhang ◽  
Zhen-Chuan Wen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Liquid Crystal ◽  
Charge Transport ◽  
Organic Solar Cells ◽  
Transport Pathway ◽  
Discotic Liquid Crystal

scholarly journals Substrate Induced Polymorphism in Organic Thin Films

2014 ◽  
Vol 70 (a1) ◽  
pp. C728-C728
Author(s):  
Basab Chattopadhyay ◽  
Yves Geerts
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Liquid Crystal ◽  
Charge Transport ◽  
Field Effect Transistors ◽  
Crystal Packing ◽  
Morphological Changes ◽  
Solid Substrate ◽  
Experimental Proof ◽  
Discotic Liquid Crystal

The presence of substrate induced polymorphic phases in thin films is an intriguing phenomenon with the physical and chemical factors responsible for its formation are not yet clearly understood. In particular, this is really crucial in the field of organic electronics, where the charge-transport properties are highly dependent on crystal packing, especially for organic field-effect transistors where charge transport occurs at the interface between the organic semiconductor and the dielectric. In pharmaceutical sector, thin film drug delivery is the new emerging alternative to traditional tablets and oral suspensions. The need to identify and control polymorphism induced by the substrate is thus very crucial. In this presentation, we report the structure and morphological changes associated with a substrate induced polymorphic phases in a discotic liquid crystal and a rod shaped DPP-thiophene-based molecule [1, 2]. The bulk compound and the thin films are characterized by a combination of various X-ray diffraction methods to investigate the structural properties. Atomic force microscopy and polarized optical microscopy are used to determine the thin film morphologies. This is the first experimental proof of presence of a substrate induced phase in discotic liquid crystal showcasing an unique example where the 2-D liquid crystalline phase converts to a 3-D crystal plastic phase due to nucleation caused by the solid substrate over a time scale of a month or longer. The presentation also highlights the importance of polymorphism in DPP-thiophene-based material and the specific organization that could arise from the interaction with the substrate depending on the growing conditions. Here the exact structural and the spectroscopic signatures of different polymorphic forms in bulk and in thin films could be identified. These are clearly factors to consider to induce the formation of a particular polymorph and to help to design deposition methodologies.

Charge transport in phenazine-fused triphenylene discotic mesogens doped with CdS nanowires

2020 ◽  
Vol 44 (35) ◽  
pp. 14872-14878
Author(s):  
Asmita Shah ◽  
Benoit Duponchel ◽  
Ashwathanarayana Gowda ◽  
Sandeep Kumar ◽  
Matthieu Becuwe ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Charge Transport ◽  
Temperature Dependent ◽  
Discotic Liquid Crystal ◽  
Cds Nanowires ◽  
Discotic Mesogens

We report the synthesis of oleylamine capped CdS nanowires and we have dispersed a small optimized amount of these NWs in the Colh phase of a recently synthesized phenazine-fused-triphenylene discotic liquid crystal to understand the temperature-dependent charge transport.

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

2021 ◽  
Author(s):  
Beatriz Feringán ◽  
Roberto Termine ◽  
Attilio Golemme ◽  
Jose M. Granadino-Roldan ◽  
Amparo Navarro ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Charge Transport ◽  
Transport Properties ◽  
Liquid Crystalline ◽  
Crystal Phase ◽  
Liquid Crystal Phase ◽  
Hole Transporting ◽  
Hole Transporting Materials ◽  
Bonded Complexes ◽  
Hydrogen Bonded

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...

Conformation, Defects, and Dynamics of a Discotic Liquid Crystal and Their Influence on Charge Transport

2011 ◽  
Vol 115 (47) ◽  
pp. 13809-13816 ◽  
Author(s):  
Lucas A. Haverkate ◽  
Mohamed Zbiri ◽  
Mark R. Johnson ◽  
Bruno Deme ◽  
Fokko M. Mulder ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Charge Transport ◽  
Discotic Liquid Crystal

scholarly journals Fluorinated triphenylenes and a path to short tailed discotic liquid crystals: synthesis, structure and transport properties

2021 ◽  
Author(s):  
Zhe Li ◽  
Mitchell Powers ◽  
Kayla Ivey ◽  
Sonya Adas ◽  
Brett Ellman ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Transport Properties ◽  
Synthesis Method ◽  
Discotic Liquid Crystals ◽  
Discotic Liquid Crystal

We present a versatile synthesis method capable of creating triphenylene discotic liquids with enhanced control of the number and type of tails. The compounds obtained from this method include a discotic liquid crystal with unusually short methoxy tails.

Correction to “Conformation, Defects, and Dynamics of a Discotic Liquid Crystal and Their Influence on Charge Transport”

2012 ◽  
Vol 116 (12) ◽  
pp. 3908-3908 ◽  
Author(s):  
Lucas A. Haverkate ◽  
Mohamed Zbiri ◽  
Mark R. Johnson ◽  
Bruno Deme ◽  
Fokko M. Mulder ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Charge Transport ◽  
Discotic Liquid Crystal

3D Charge Transport Pathway in Organic Solar Cells via Incorporation of Discotic Liquid Crystal Columns

Solar RRL ◽  
2020 ◽  
Vol 4 (5) ◽  
pp. 2000047 ◽  
Author(s):  
Tong Wang ◽  
Meng-Si Niu ◽  
Jia-Jia Guo ◽  
Kang-Ning Zhang ◽  
Zhen-Chuan Wen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Liquid Crystal ◽  
Charge Transport ◽  
Organic Solar Cells ◽  
Transport Pathway ◽  
Discotic Liquid Crystal

Enhanced electronic transport properties in complementary binary discotic liquid crystal systems

2000 ◽  
Vol 262 (2-3) ◽  
pp. 489-497 ◽  
Author(s):  
T Kreouzis ◽  
K Scott ◽  
K.J Donovan ◽  
N Boden ◽  
R.J Bushby ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Transport Properties ◽  
Electronic Transport ◽  
Electronic Transport Properties ◽  
Discotic Liquid Crystal
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