Abstract
We demonstrate a method that uses the pillars on a stamp to cut and exfoliate graphene islands from a graphite and then uses transfer printing to place the islands from the stamp into the device active-areas on a substrate with a placement accuracy potentially in nanometers. The process can be repeated to cover all device active-areas over an entire wafer. We also report the transistors fabricated from the printed graphene. The transistors show a hole and electron mobility of 3735 and 795 cm2/V-s, respectively, and a maximum drive-current of 1.7 mA/μm (at VDS = 1 V), which are among the highest reported for room temperature. The effects of various transferring and fixing layers on sticking graphenes to a stamp and to a substrate, respectively, were also investigated.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3840-3844 |
| Number of pages | 5 |
| Journal | Nano Letters |
| Volume | 7 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 2007 |
All Science Journal Classification (ASJC) codes
- Bioengineering
- General Chemistry
- General Materials Science
- Condensed Matter Physics
- Mechanical Engineering