Presentation Title

Optimizing Copper Phthalocyanine Thin Films By Altering Spin Coating Parameters

Faculty Mentor

Dr. Thomas Gredig

Start Date

23-11-2019 8:45 AM

End Date

23-11-2019 9:30 AM

Location

218

Session

poster 2

Type of Presentation

Poster

Subject Area

physical_mathematical_sciences

Abstract

Optimizing Copper Phthalocyanine Thin Films By Altering Spin Coating Parameters

By Mary Usufzy, Dr. Thomas Gredig

California State University, Long Beach & Department of Physics & Astronomy

Copper phthalocyanine (CuPc) is a metallo-organic small planar molecule. In material sciences and chemical engineering, CuPc is used to create cost-effective electronic devices. Its numerous applications include gas sensors, thin-film transistors, and photovoltaic cells. The aim of this project was to optimize parameters on the spin coater in order to obtain higher quality samples of copper phthalocyanine. Spin coating creates thin film samples in a faster and more cost-effective process, but at the expense of quality. Compared to thermal evaporation, which usually takes several days due to high vacuum requirements, spin coating can produce samples in less than ten minutes. Silicon (100) and glass substrates (25 mm x 25 mm) were prepared and cleaned through sonication with acetone, isopropyl, and methanol. Copper phthalocyanine tetrasulfonic acid was spin coated onto the substrates. A total of 21 samples were created with varying parameters; the rotation spin was varied from 2500 - 4500 RPM (revolutions per minute) and the duration was changed from 30 or 60 s. Altering these variables on the spin coater program affected the quality of each thin film. Eight CuPc samples on silicon (100) substrates were analyzed with X-Ray Diffraction (XRD). Using Bragg-Brentano focusing and Rigaku SmartLab, the data was graphed to observe the crystalline properties of each sample. A peak was observed at 5.31° , but further analysis is needed to understand its significance in the data. Additionally, the XRD data of a spin coated sample and thermally evaporated sample were compared to understand the advantages of each method.

This document is currently not available here.

Share

COinS
 
Nov 23rd, 8:45 AM Nov 23rd, 9:30 AM

Optimizing Copper Phthalocyanine Thin Films By Altering Spin Coating Parameters

218

Optimizing Copper Phthalocyanine Thin Films By Altering Spin Coating Parameters

By Mary Usufzy, Dr. Thomas Gredig

California State University, Long Beach & Department of Physics & Astronomy

Copper phthalocyanine (CuPc) is a metallo-organic small planar molecule. In material sciences and chemical engineering, CuPc is used to create cost-effective electronic devices. Its numerous applications include gas sensors, thin-film transistors, and photovoltaic cells. The aim of this project was to optimize parameters on the spin coater in order to obtain higher quality samples of copper phthalocyanine. Spin coating creates thin film samples in a faster and more cost-effective process, but at the expense of quality. Compared to thermal evaporation, which usually takes several days due to high vacuum requirements, spin coating can produce samples in less than ten minutes. Silicon (100) and glass substrates (25 mm x 25 mm) were prepared and cleaned through sonication with acetone, isopropyl, and methanol. Copper phthalocyanine tetrasulfonic acid was spin coated onto the substrates. A total of 21 samples were created with varying parameters; the rotation spin was varied from 2500 - 4500 RPM (revolutions per minute) and the duration was changed from 30 or 60 s. Altering these variables on the spin coater program affected the quality of each thin film. Eight CuPc samples on silicon (100) substrates were analyzed with X-Ray Diffraction (XRD). Using Bragg-Brentano focusing and Rigaku SmartLab, the data was graphed to observe the crystalline properties of each sample. A peak was observed at 5.31° , but further analysis is needed to understand its significance in the data. Additionally, the XRD data of a spin coated sample and thermally evaporated sample were compared to understand the advantages of each method.