A biristor based on a floating-body silicon nanowire for biosensor applications

Dong-Il Moon, Maxime Peycelon, Jee-Yeon Kim, Jae-Hyuk Ahn, Tae Jung Park, Yang-Kyu Choi
2013 Applied Physics Letters  
A silicon nanowire (SiNW), which has been named "biristor" (bistable resistor), is demonstrated for biosensor applications. The SiNW is composed of three segments: n-type (source), p-type (floating-body), and n-type (drain). Its structure is based on a metal-oxide-semiconductor field-effect transistor without a gate. The biristor uses the uncovered floating-body as a sensing site, and it is triggered by impact ionization. A charge effect arising from biomolecules influences the triggering
more » ... he triggering voltage, which is a sensing metric and changes the resistance of the SiNW. The biristor can be a promising candidate for biosensors in terms of complementary metal-oxide-semiconductor compatibility, low-cost, and compact density. V C 2013 American Institute of Physics. [http://dx.
doi:10.1063/1.4789904 fatcat:s2rubjb67jdblc2cjnnz5s5vbq