-
Article
Open AccessValence conversion and site reconstruction in near-infrared-emitting chromium-activated garnet for simultaneous enhancement of quantum efficiency and thermal stability
Achievement of high photoluminescence quantum efficiency and thermal stability is challenging for near-infrared (NIR)-emitting phosphors. Here, we designed a “kill two birds with one stone” strategy to simulta...
-
Article
Open AccessHighly efficient Fe3+-doped A2BB′O6 (A = Sr2+, Ca2+; B, B′ = In3+, Sb5+, Sn4+) broadband near-infrared-emitting phosphors for spectroscopic analysis
Near-infrared (NIR)-emitting phosphor-converted light-emitting diodes have attracted widespread attention in various applications based on NIR spectroscopy. Except for typical Cr3+-activated NIR-emitting phosphor...
-
Article
Open AccessThermally stable and highly efficient red-emitting Eu3+-doped Cs3GdGe3O9 phosphors for WLEDs: non-concentration quenching and negative thermal expansion
Red phosphor materials play a key role in improving the lighting and backlit display quality of phosphor-converted white light-emitting diodes (pc-WLEDs). However, the development of a red phosphor with simult...
-
Article
Open AccessNew strategy for designing orangish-red-emitting phosphor via oxygen-vacancy-induced electronic localization
Phosphor-converted white-light-emitting diodes (pc-WLED) have been extensively employed as solid-state lighting sources, which have a very important role in people’s daily lives. However, due to the scarcity o...
-
Article
Open AccessSynthesis and Characterization of Hierarchical ZSM-5 Zeolites with Outstanding Mesoporosity and Excellent Catalytic Properties
A novel soft-template (ST) is fabricated and successfully employed as mesoporogen to synthesis hierarchical ZSM-5 zeolites with outstanding mesoporosity and high hierarchy factors. The as-produced soft-templat...
-
Article
TDLAS–WMS based near-infrared methane sensor system using hollow-core photonic crystal fiber as gas-chamber
A near-infrared methane (CH4) sensor system was implemented using a hollow-core photonic crystal fiber (HC-PCF) as gas-chamber. Coupling joints including ceramic ferrules and ceramic mating sleeve were used to re...
-
Article
Silicon-microring-based thermo-optic non-blocking four-port optical router for optical networks-on-chip
By using silicon-on-insulator platform and only four parallel-coupling one microring resonator routing elements, an active non-blocking four-port optical router was theoretically proposed for large-scale optic...
-
Article
Comparative study of three wavelength-routed four-port optical routers based on different polymeric microring routing elements
Based on different basic routing elements, device architectures and design schemes of three kinds of four-port optical routers with the same routing function are studied. First, the structural parameters of th...
