CUED Publications database

Vertical CNT-Si photodiode array.

Ahnood, A and Zhou, H and Dai, Q and Vygranenko, Y and Suzuki, Y and Esmaeili-Rad, M and Amaratunga, G and Nathan, A (2013) Vertical CNT-Si photodiode array. Nano Lett, 13. pp. 4131-4136.

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A photodiode consisting of nanopillars of thin-film silicon p-i-n on an array of vertically aligned carbon nanotubes (CNTs) with a noncontinuous cathode electrode is demonstrated. The structure exploits the intrinsic enhancement of the CNTs' electric field, which leads to reduction in the photodiode's operating voltage and response time and enhancement of optical coupling due to better light trapping, as compared with the conventional planar photodiode. These improvements translate to higher resolution and higher frame rate flat-panel imaging systems for a broad range of applications, including computed tomography and particle detection.

Item Type: Article
Depositing User: Cron job
Date Deposited: 04 Feb 2015 22:38
Last Modified: 26 Mar 2015 01:33
DOI: 10.1021/nl401636v