Abstract
This paper reports a new type betavoltaic (BV) microcell based on intrinsic p-type semiconductive single-walled carbon nanotubes (s-SWNTs). Our device composes of Au and Ti asymmetrical electrode pairs with s-SWNTs laid over them forming Schottky junction with Ti and ohmic contact with Au. SWNT bundles were self-assembled between Au and Ti electrodes by Dieletrophoretic (DEP) technique, and metallic SWNTs (m-SWNTs) were selectively eliminated by current-induced electrical breakdown method. 3.3mCi/cm2 thin-film 63Ni serves as ฮฒ particles source, with 100-year half-time and low toxicity. Test results show that SWNTs BV microcell has the open circuit voltage (VOC) of 26mV, short circuit current density (JSC) of 2.19ฮผA/cm2 and energy conversion efficiency (ฮท) of 4.44%.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
