Using Si for n-type doping and Mg/In co-doping for p-type, AlN nanowire p-n junctions were demonstrated [1]. Optimal electrical activation of acceptor impurities was achieved by electron irradiation. Current voltage characteristics in forward bias conditions have established that the current was varying as Vn, (with n larger than 6) before activation while a space charge limited current regime was observed after activation. The formation of AlN NW p-n junction was assessed by electron beam induced current (EBIC) experiments, putting in evidence the electrical field associated with the junction.
[1] A. M. Siladie et al, Nano Lett. 2019, 19, 8357−8364
InGaN/GaN core-shell wire-based LEDs are a promising alternative to the c-plane two-dimensional LEDs for µLED display technologies. Developing correlative doping characterization techniques adapted to wires is essential to optimize the epitaxial structure.
The impact of different LED growth conditions was investigated through current-voltage (I-V) and capacitance–voltage (C–V) characteristics on both single wire and assembly of wires. A statistical C-V study was carried out on ~70 single wires to evaluate the agreement in depletion width and effective doping level Neff values between single and assembly of connected wires. To corroborate the results, EBIC measurement were also performed to determine the position of the p-n junction and depletion region width.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.