The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
III-nitride based nanostructures have gained interest as nanoscale light sources in the UV to visible wavelengths. Here we present a top-down approach to enable vertical, high aspect ratio III-nitride-based nanowires with controllable height, pitch, and diameter. Additionally, through the use of orientation-dependent etch rate measurements, the cross-sections of such nanostructures can be predicted...
Nanowires have gained interest as coherent, nanoscale light sources. Using a top-down approach, high quality III-nitride-based nanowires with controllable height, pitch and diameter have been realized. Here, the fabrication, and lasing characteristics of GaN-based and GaN/InGaN based nanowires fabricated by this approach will be presented, along with schemes for single optical mode selection, polarization...
Complex axial and radial type III‐nitride InGaN/GaN nanowire LEDs are realized using a recently developed top–down fabrication approach which enables high quality GaN‐based nanowires with independently controlled height, pitch, and diameter. In this paper, we report on the fabrication, structural characterization, and luminescence of these two different structures and discuss their relative merits,...
A temperature sensor based on photonic crystal fiber (PCF) surface plasmon resonance (SPR) is proposed in this paper. We use the dual function of the PCF filled with different concentrations of analyte and silver nanowires to realize temperature sensing. The proposed sensor has been analyzed through numerical simulations and demonstrated by experiments. The results of the simulations and experiments...
Spatially-resolved ultrafast transient absorption measurements on a single GaN nanowire give insight into carrier relaxation dynamics as a function of the laser polarization and position on the nanowire on a femtosecond timescale.
The optical and electrical transport of GaN nanowires grown by metal catalyzed metal organic chemical vapor deposition was investigated as a function of substrate temperature during growth. As the growth temperature increased from 800??C to 900??C the electrical conduction mechanism changed from space charge limited to ohmic transport , the nanowire resistivity dropped from ~107 ohm-cm to ~10??3 ohm-cm,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.