Welcome to
Nano Opto-Electronics Lab WEBSITE
Nano-OptoElectronics Lab (NOEL) has three main research areas including Semiconductor-laser devices, Organic optoelectronic devices and solar thermal photovoltaics. The lab has the capability of fabricating and testing for various devices. This includes core IiI/V fabrication tools (such as mask aligner, inductively coupled plasma etcher (ICP), oxidation furnaces), photoluminescence and electroluminescence testing system with spectral range from visible to NIR and with temperature range from liquid helium to room temperature, ultrafast optical measurement system with femtosecond laser and streak camera, organic devices fabrication and testing tools (glovebox-thermal evaporation system, EQE measurement system) and solar simulator.
Perovskite Light-Emitting Diodes Based on Perovskite Nanocrystals
Organic–inorganic hybrid perovskite materials with mixed cations have demonstrated tremendous advances in photovoltaics recently, by showing a signifcant enhancement of power conversion effciency and improved perovskite stability. The recent hot research on perovskite has demonstrated tremendous advances in photoelectronic devices. HC(NH2)2 (FA) cation based perovskite is rarely studied, espectially FA-based perovskite LEDs. Inspired by the great achievement of mixed-cation perovskite solar cells, we have synthesized mixed-cation perovskite (FA(1-x)CsxPbBr3) NCs and successfully demonstrated bright and efficient LEDs.
Ultra-low threshold InAs/GaAs quantum dot microdisk lasers on planar on-axis Si (001) substrates
Here, we present InAs/GaAs QD microdisk lasers monolithically grown on on-axis Si (001) substrate. The lasing characteristics of microdisk lasers with small diameter (D) around 2 μm and subwavelength scale (D～1.1μm) are demonstrated, with a lasing threshold as low as ～3 μW.
