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Zero-bias photocurrents in highly-disordered networks of Ge and Si nanowires
(
Institute of Physics Publishing
, 2015 , Article)
Semiconducting nanowire (NW) devices have garnered attention in self-powered electronic and optoelectronic applications. This work explores and exhibits, for the first time for visible light, clear evidence of the zero-biased ...
Modeling of dual-metal Schottky contacts based silicon micro and nano wire solar cells
(
Elsevier B.V.
, 2014 , Article)
We study solar cell properties of single silicon wires connected at their ends to two dissimilar metals of different work functions. Effects of wire dimensions, the work functions of the metals, and minority carrier lifetimes ...
Photoresponse of silicon with asymmetric area contacts
(
Institute of Physics Publishing
, 2016 , Article)
We report on high performance metal-semiconductor-metal (MSM) photosensors based on asymmetric metal pad areas. The reported devices require a single-step metal deposition, and exhibit large photo response even under ...
Tailoring optical absorption in silicon nanostructures from UV to visible light: A TDDFT study
(
Elsevier Ltd
, 2016 , Article)
The utilization of silicon nanostructures, from quantum dots to nanowires, for photovoltaic applications depends on understanding the effect of their physical structure on their optical absorption properties. In this work, ...
Photoconductive response of strained silicon nanowires: A Monte Carlo study
(
AIP Publishing LLC.
, 2014 , Article)
Using Ensemble Monte Carlo simulations, the photocurrent in a 500 nm long strained [110] silicon nanowire with diameter of 3.1 nm is investigated. It was observed that a phototransistor based on this nanowire can have ...
High-efficiency c-Si based interdigitated point contact back heterojunction solar cells
(
Springer New York LLC
, 2017 , Article)
We report on the modeling and performance optimization studies of point contact back heterojunction (BHJ) solar cells. BHJ solar cell technology is a combination of front heterojunction (a-Si:H/c-Si) solar cell technology ...