Si
Nanowire pH Sensor
- p-type Si nanowire modified with 3-aminopropyltriethoxysilane
- amine and silanol function as receptors for hydrogen ions over a wide pH range
- protonation/deprotonation changes nanowire surface charge which changes FET
conductance
F. Patolsky and C. M. Lieber, “Nanowire Sensors,” Materials Today, April 2005, pages 20-28,
Y. Cui, Q. Wei, H. Park, and C.M. Lieber, "Nanowire nanosensors,"Science 293, 1289-1292 (2001)
