Xudong W ang Assistant Professor Department of Materials Science - - PowerPoint PPT Presentation

Nanoscience and Nanotechnology Group http://nanoscience.engr.wisc.edu

Xudong W ang

Assistant Professor

Department of Materials Science and Engineering University of Wisconsin-Madison

Email: xudong@engr.wisc.edu The Tenth US-Korea Forum

• Oct. 16, 2013

Nanoscience and Nanotechnology Group

2 μm

Nanotechnology, 22, 225602 (2011)

Nanoscience and Nanotechnology Group

0 100 1 10-6 2 10-6 3 10-6 4 10-6 5 10-6 5 10 15

Drain Current (A) Drain Voltage (V)

Vg=0V-20V, 5V step Mobility=0.41cm

2/ V s

W/L=40um/4um

5 V 10 V 15 V 20 V 10-11 10-10 10-9 10-8 10-7 10-6 10-5

0.0005 0.001 0.002 0.002 0.003

• 10

10 20 30

Drain Current (A) SQRT Drain Current (A) Gate Voltage (V)

SS=0.82V/dec Vth=-1.0V

• n/off ratio=2.8*10

5

ACS Nano, 6, 2602 (2012)

Nanoscience and Nanotechnology Group

50 μm

(b) Diffusion-limited (a) Reaction-limited Growth (c) Completion of Phase transformation

ACS Nano, 7, 6007 (2013)