Abstract
Factors that affect crystalline growth of germanium (Ge) micro- and nanowires by the electrochemical liquid–liquid solid (ec-LLS) method in water have been identified. Alloys of gallium and indium (Ga1–xInx) were used as liquid metal microdroplet electrodes in ec-LLS to determine whether the resultant conductivity of as-grown Ge could be strongly modulated by adjusting the fraction of Ga. Current–potential measurements on individual microwires were performed as a function of alloy composition. All alloys of Ga and In yielded Ge microwires with low resistivity and showed evidence of metal incorporation beyond the solubility limit (i.e., hyperdoping). The observed Ge crystal growth rates were insensitive to the alloy composition. In contrast, lowering the concentration of GeO2 dissolved in solution and/or increasing the density of droplets noticeably slowed down the microwire growth rate. Cumulatively, these data help define what parameters should be useful in refining the ec-LLS method to produce materials...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.