SINGLE-WALLED CARBON NANOTUBE FILM IR TRANCEIVER

1. SINGLE-WALLED CARBON NANOTUBE FILM IR TRANCEIVER SDP 11 team Yngvesson Ioan Tihenea Tomas Broka Dmitriy Stupak Sergey Derivolkov

2. Outline • Goals • System Overview and Components Design • Why Carbon Nanotubes • Fabrication Procedure • Suspension Procedure • Current Status and Group Breakup • Application and Advantage • Questions

3. Goals • To assemble a suspended single-walled carbon nanotube (SWNT) film device. • Integrate optoelectronics in device to detect Infrared radiation. • To implement device as a communication system. • Improve existing technology to achieve higher speed and increased range.

4. Outline • Goals • System Overview and Components Design • Why Carbon Nanotubes • Fabrication Procedure • Suspension Procedure • Current Status and Group Breakup • Application and Advantage • Questions

5. System Overview

6. Detector/Emitter concept • Detector and Emitter are similar devices, one Emits IR and one Detects IR. NANO LETTERS 2008 Vol. 8, No. 8 2224-2228

7. Optics concept • Lenses will be used to increase the transmittance range and focus light on the detector.

8. Outline • Goals • System Overview and Components Design • Why Carbon Nanotubes • Fabrication Procedure • Suspension Procedure • Current Status and Group Breakup • Application and Advantage • Questions

9. Why Carbon Nanotubes Science 305, 1273 (2004);

10. Outline • Goals • System Overview and Components Design • Why Carbon Nanotubes • Fabrication Procedure • Suspension Procedure • Current Status and Group Breakup • Application and Advantage • Questions

11. Fabrication procedure • Will use a method that does not limit film quality or production efficiency. • Three step procedure. • Vacuum filtering surfactant onto a filtration membrane. • Washing surfactant with purified water. • Dissolving of the filtration membrane with a solvent. • Advantages of filtration method. • Homogeneity of films • Yields maximal electrical conductivity and mechanical integrity. • Film thickness is readily controlled.

12. Outline • Goals • System Overview and Components Design • Why Carbon Nanotubes • Fabrication Procedure • Suspension Procedure • Current Status and Group Breakup • Application and Advantage • Questions

13. Suspension procedure • Basic concept. • Why do we suspend? • Fabrication of Supporting Washer • Electrical Contacts • Connecting SWCN Film to Supporting Washer Science 305, 1273 (2004);

14. Outline • Goals • System Overview and Components Design • Why Carbon Nanotubes • Fabrication Procedure • Suspension Procedure • Current Status and Group Breakup • Application and Advantage • Questions

15. Current status and group Breakup • Where we are now? • Researching fabrication & suspension procedures • Obtaining samples of the CNTs • Working on our own SWCNT Film • Learning how to use SEM & AFM microscopes • Starting Webpage design • Responsibilities: • Ordering and organizing supplies - Tomas • Suspension – Sergey • Fabrication – Ioan • Circuitry Design & Optics - Dmitriy

16. Outline • Goals • System Overview and Components Design • Why Carbon Nanotubes • Fabrication Procedure • Suspension Procedure • Current Status and Group Breakup • Application and Advantage • Questions

17. Application and advantage • This device can be used in a communication system. • Better for local network communication systems. • It can be interfaced with fiber optics. • This device is cheaper (presumably on the production line) than fiber optic lasers. • Though lasers are better technology because a lot of time and money has been invested into them, they are still very expensive. • With enough research, SWNT films can be made to have acceptable speeds for metropolitan and local area networks.

18. Outline • Goals • System Overview and Components Design • Why Carbon Nanotubes • Fabrication Procedure • Suspension Procedure • Current Status and Group Breakup • Application and Advantage • Questions

19. Questions ??