Extending the near-infrared band-edge absorption spectrum of silicon by proximity to a 2D semiconductor

Wideband enhancement of infrared absorption in a direct band-gap semiconductor by using nonabsorptive pyramids.

Efficient trapping of the light in a photon absorber or a photodetector can improve its performance and reduce its cost. In this paper we investigate two designs for light-trapping in application to infrared absorption. Our numerical simulations demonstrate that nonabsorptive pyramids either located on top of an absorbing film or having embedded absorbing rods can efficiently enhance the absorp...

Near-infrared free carrier absorption in heavily doped silicon

Compensating the Degradation of Near-Infrared Absorption of Black Silicon Caused by Thermal Annealing.

We propose the use of thin Ag film deposition to remedy the degradation of near-infrared (NIR) absorption of black Si caused by high-temperature thermal annealing. A large amount of random and irregular Ag nanoparticles are formed on the microstructural surface of black Si after Ag film deposition, which compensates the degradation of NIR absorption of black Si caused by thermal annealing. The ...

Emergence of very broad infrared absorption band by hyperdoping of silicon with chalcogens

with chalcogens Ikurou Umezu, Jeffrey M. Warrender, Supakit Charnvanichborikarn, Atsushi Kohno, James S. Williams, Malek Tabbal, Dimitris G. Papazoglou, Xi-Cheng Zhang, and Michael J. Aziz Department of Physics, Konan University, Kobe 658-8501, Japan U.S. Army ARDEC–Ben et Laboratories, Watervliet, New York 12189, USA Research School of Physics and Engineering, The Australian National Universit...

from linguistics to literature: a linguistic approach to the study of linguistic deviations in the turkish divan of shahriar

chapter i provides an overview of structural linguistics and touches upon the saussurean dichotomies with the final goal of exploring their relevance to the stylistic studies of literature. to provide evidence for the singificance of the study, chapter ii deals with the controversial issue of linguistics and literature, and presents opposing views which, at the same time, have been central to t...