Cover Growth of Self-Assembled Patterned Films on Dielectric Surfaces Using Langmuir-Blodgett Deposition Technique

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Growth of Self-Assembled Patterned Films on Dielectric Surfaces Using Langmuir-Blodgett Deposition Technique

Name: Growth of Self-Assembled Patterned Films on Dielectric Surfaces Using Langmuir-Blodgett Deposition Technique
Author: Satyabrat Behera

Satyabrat Behera

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GRIN Verlag

Naturwissenschaften, Medizin, Informatik, Technik / Thermodynamik

Beschreibung

Master's Thesis from the year 2020 in the subject Physics - Applied physics, , course: M.Tech in Functional Materials and Devices, language: English, abstract: L-α-dipalitoylphosphatidylcholine(DPPC) is a phospholipid, and a lung surfactant is used for dielectric surface patterning. In this technique, the self-assembling property of DPPC along with meniscus oscillation, which occurs in LangmuirBlodgett transfer, results in a spatially inhomogeneous distribution of two different phases of DPPC. This way, nanometre height rigid, tightly packed, and durable lateral structures separated by micron size channels are grown on the dielectric surface using the Langmuir-Blodgett deposition technique. The effect of surface modification and deposition parameters on the growth of the patterned surface is studied in detail. A simplified relationship between the surface energy of substrate and deposition parameters is explained in this work. Thus, deposition parameters can be tuned based on the modification of the surface gives more control over the growth of these structures. Lastly, the effect of post-annealing temperatures on the patterned surface is investigated. In conclusion, an easy, affordable, and less timeconsuming method of dielectric surface patterning using phospholipid is investigated, which has potential applications in improving the properties (such as charge mobility and contact resistance) of OFET, TFT and in bioelectronics.

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