Nanovadu nanoelektromehāniskais masas sensors

6533b870fe1ef96bd12d0996

RESEARCH PRODUCT

Nanovadu nanoelektromehāniskais masas sensors

Jeļena Kosmača

subject

description

Nanoelektromehāniskos (NEM) sensorus var izmantot mazas masas objektu svēršanai. Sensoru darbība balstas uz rezonanses frekvences nobīdes mērījumiem, izmainoties sistēmas masai. Pateicoties nanomēroga izmēriem nanovadu sensoru rezonanses frekvences ir augstas un ļoti mazas masas izmaiņas rada detektējamas rezonanses frekvences izmaiņas. Darba mērķis ir izstrādāt eksperimentālu metodi, kas ļautu nanovadu elektromehānisko masas sensoru izmantot dažādu nanoobjektu uznešanai definētā vietā uz sensora, noteikt objekta masu un struktūru, kā arī izpētīt uz nanovadiem balstītās NEM ierīces darbību ietekmējošus faktorus. Darbā demonstrēta kontrolēta grafēna parauga uznešana uz aktīvā elementa – Ge nanovada, kas balstās uz adhēzijas mijiedarbību starp grafēna un germānija virsmām. Pamatojoties uz iegūtiem eksperimentāliem datiem, tika noteikts atomāro monoslāņu skaits grafēna paraugā.

year	journal	country	edition	language
2012-01-01

https://dspace.lu.lv/dspace/handle/7/25687

PEPhysical Sciences and Engineering
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