Journal ArticleDOI
Tailoring room temperature photoluminescence of antireflective silicon nanofacets
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TLDR
In this article, a fluence-dependent antireflection performance is presented from ion-beam fabricated nanofaceted-Si surfaces, which can produce room temperature ultra-violet and blue photoluminescence which can be attributed to interband transitions of the localized excitonic states of different Si-O bonds at the Si/SiOx interface.Abstract:
In this paper, a fluence-dependent antireflection performance is presented from ion-beam fabricated nanofaceted-Si surfaces. It is also demonstrated that these nanofacets are capable of producing room temperature ultra-violet and blue photoluminescence which can be attributed to inter-band transitions of the localized excitonic states of different Si-O bonds at the Si/SiOx interface. Time-resolved photoluminescence measurements further confirm defect-induced radiative emission from the surface of silicon nanofacets. It is observed that the spectral characteristics remain unchanged, except an enhancement in the photoluminescence intensity with increasing ion-fluence. The increase in photoluminescence intensity by orders of magnitude stronger than that of a planar Si substrate is due to higher absorption of incident photons by nanofaceted structures.read more
Citations
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All-Oxide-Based Highly Transparent Photonic Synapse for Neuromorphic Computing
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Surfing Silicon Nanofacets for Cold Cathode Electron Emission Sites
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References
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Semiconductor Clusters, Nanocrystals, and Quantum Dots
TL;DR: In this article, the authors focus on the properties of quantum dots and their ability to join the dots into complex assemblies creates many opportunities for scientific discovery, such as the ability of joining the dots to complex assemblies.
Journal ArticleDOI
Improved broadband and quasi-omnidirectional anti-reflection properties with biomimetic silicon nanostructures
Yi Fan Huang,Yi Fan Huang,Surojit Chattopadhyay,Yi-Jun Jen,Cheng Yu Peng,Tze An Liu,Yu-Kuei Hsu,Ci-Ling Pan,Hung Chun Lo,Chih Hsun Hsu,Yuan Huei Chang,Chih Shan Lee,Kuei-Hsien Chen,Li-Chyong Chen +13 more
TL;DR: A simple aperiodic array of silicon nanotips on a 6-inch wafer with a sub-wavelength structure that can suppress the reflection of light at a range of wavelengths from the ultraviolet, through the visible part of the spectrum, to the terahertz region is reported.
Journal ArticleDOI
Formation of Ordered Nanoscale Semiconductor Dots by Ion Sputtering.
Stefan Facsko,Thomas Dekorsy,Clemens Koerdt,C. Trappe,Heinrich Kurz,Alexander Vogt,Hans L. Hartnagel +6 more
TL;DR: A formation process for semiconductor quantum dots based on a surface instability induced by ion sputtering under normal incidence is presented andCrystalline dots 35 nanometers in diameter and arranged in a regular hexagonal lattice were produced on gallium antimonide surfaces.
Journal ArticleDOI
Correlation between luminescence and structural properties of Si nanocrystals
TL;DR: In this paper, strong room-temperature photoluminescence (PL) in the wavelength range 650-950 nm has been observed in high temperature annealed (1000-1300 °C) substoichiometric silicon oxide (SiOx) thin films prepared by plasma enhanced chemical vapor deposition.
Journal ArticleDOI
Gradient-index antireflection coatings.
TL;DR: It is shown that the control of the index gradient as a design parameter can significantly enhance the performance of interference coatings.