The effect of external mechanical stress on the fullerite conductivity

A.S. Berdinsky1, D. Fink2, A. Petrov2, L.T. Chadderton3, S.M. Krasnoshtanov1, E.S. Rylova1
1Novosibirsk State Technical University, Novosibirsk, Russia
2Hahn Meitner Institut Berlin GmbH, Germany
3Australian National University, Canberra Australia

Tóm tắt

The possibility to use powder consisting of fullerite microcrystals as device sensitive in external mechanical load is considered. As we suppose the change of conductivity of fullerite microcrystal powder as function of environmental mechanical stress is useful for creation of nanoscale devices of sensor electronics. This new effect based on changing of intermolecular distance between fullerene molecules due to action of external mechanical force, which can change the distance between fullerene molecules because of weak van-der-Waals interaction exists. The founded effect is quite linear and sensitivity of this effect to external mechanical stress more then in well-known pressure transducers based on silicon technology.

Từ khóa

#Stress #Conductivity #Sensor phenomena and characterization #Chemical sensors #Polymers #Mechanical sensors #Silicon #Nanostructured materials #Solids #Dielectrics

Tài liệu tham khảo

berdinsky, 2000, Sensor Properties of Fullcrcnc Films and Fullerene Compounds with Iodine, Chemistry for Sustainable Development, 8, 141 bcrdinsky, 1998, Humidity-sensitive resistive sensors from C60 films, International Symposium on Carbon Science and Technology of New Carbons, 540 shevtsov yu, 1998, Mol Mat, 10, 131 berdinsky, 0, Formation and Conductive Properties of Fullerite in Etched Ion Tracks in a Polymer Film, MRS Fall Meeting 10.1103/PhysRevB.55.4766 okotrub, 1994, Sverkhprovodimost' Fizika Khimiya Tekhnika, 7, 866 loktev, 1992, Fizika Nizkikh Temperatur, 18, 217