Orientational ordering of polydisperse nanorods on a flat surface

Mizani, Sakineh and Naghavi, Shahab and Varga, Szabolcs (2023) Orientational ordering of polydisperse nanorods on a flat surface. JOURNAL OF MOLECULAR LIQUIDS. ISSN 0167-7322


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The use of two-dimensional liquid crystals (2D LCs) made of carbon nanorods has become increasingly popular in electronic, optical, and energy applications due to their unique properties. However, the orientational ordering of such liquid crystals remains poorly understood. Here, we model of 2D LCs using the length polydisperse hard needle model and apply the Onsager theory to explore the impact of length polydispersity on nematic ordering. Our results show that length polydispersity plays a crucial role in stabilizing the nematic phase over the isotropic phase, albeit at the expense of weaker orientational ordering. Longer rods, in particular, contribute to the sta­bilization of the nematic phase, whereas shorter rods result in weaker nematic ordering. To achieve a highly ordered 2D nematic phase, the polydispersity of the nanorods must be reduced.

Item Type: Article
Subjects: Q Science / természettudomány > QC Physics / fizika > QC03 Heat. Thermodinamics / hőtan, termodinamika
Q Science / természettudomány > QC Physics / fizika > QC06 Physics of condensed matter / szilárdtestfizika
Q Science / természettudomány > QD Chemistry / kémia > QD02 Physical chemistry / fizikai kémia
Depositing User: Professor Dezső Boda
Date Deposited: 09 Nov 2023 16:04
Last Modified: 09 Nov 2023 16:04

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