Tracking Cation Exchange in Individual Nanowires via Transistor Characterization.

ABSTRACT: Cation exchange is a versatile method for modifying the material composition and properties of nanostructures. However, control of the degree of exchange and material properties is difficult at the single-particle level. Successive cation exchange from CdSe to Ag₂Se has been utilized here on the same individual nanowires to monitor the change of electronic properties in field-effect transistor devices. The transistors were fabricated by direct synthesis of CdSe nanowires on prepatterned substrates followed by optical lithography. The devices were then subjected to cation exchange by submerging them in an exchange solution containing silver nitrate. By removal of the devices from solution and probing the electrical transport properties at different times, the change in electronic

SUBMITTER: Lengle D 

PROVIDER: S-EPMC11238621 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature