-
Article
Open AccessDeep-learning-based gas identification by time-variant illumination of a single micro-LED-embedded gas sensor
Electronic nose (e-nose) technology for selectively identifying a target gas through chemoresistive sensors has gained much attention for various applications, such as smart factory and personal health monitor...
-
Article
Open AccessInfluence of wafer quality on chip size-dependent efficiency variation in blue and green micro light-emitting diodes
We propose a key factor associated with both surface recombination velocity and radiative efficiency of an LED to estimate its chip size-dependent radiative efficiencies. The validity of the suggested factor i...
-
Article
Open AccessStrong and robust polarization anisotropy of site- and size-controlled single InGaN/GaN quantum wires
Optical polarization is an indispensable component in photonic applications, the orthogonality of which extends the degree of freedom of information, and strongly polarized and highly efficient small-size emit...
-
Article
Open AccessA discrete core-shell-like micro-light-emitting diode array grown on sapphire nano-membranes
A discrete core-shell-like micro-light-emitting diode (micro-LED) array was grown on a 100 nm-thick sapphire nano-membrane array without harmful plasma etching for chip singulation. Due to proper design for th...
-
Article
Open AccessFormation of a-plane facets in three-dimensional hexagonal GaN structures for photonic devices
Control of the growth front in three-dimensional (3D) hexagonal GaN core structures is crucial for increased performance of light-emitting diodes (LEDs), and other photonic devices. This is due to the fact tha...
-
Article
Stabilization of papain and lysozyme for application to cosmetic products
For cosmetic applications, papain or lysozyme was conjugated to a soluble biopolymer produced by Schizophyllum commune. Stability of the conjugated enzymes were significantly enhanced, such that more than 90% of ...
