Major

Physics

Degree Name

Bachelor of Science

Date of Graduation

Spring 2018

Abstract

Thiophenes are π-conjugated organic molecules with applications in electronic devices. Alpha-sexithiophene (α-6T) is a rod-like molecule consisting of six thiophene rings. Previous experimental research has shown that vapor deposition of rod-like organic molecules onto substrates at different temperatures yields films with a range of phases. These include smectic liquid crystalline phases, which have been shown to promote anisotropic charge carrier mobility. In this work, we use a course-grained model for α-6T, representing it as a chain of discotic particles with fixed bond lengths and fixed bond angles. We perform Monte Carlo simulations of multiple chains introduced at different rates in vacuum near two adsorbing surfaces. These simulations are not chemically realistic, instead focusing on the general features of the physical systems. The goal of this work is to simulate vapor deposition of materials on a substrate over a range of temperatures and deposition rates and to investigate the resulting structures.

Research Sponsor

Dr. Jutta Luettmer-Strathmann

First Reader

Dr. Robert Mallik

Second Reader

Dr. Ben Hu

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.