Due to their rapid improvements in a short amount of time, perovskite solar cells have become one of today's most promising up-and-coming photovoltaic technologies. Currently, the record efficiency for a perovskite solar cell is 15% and ...
Tags: perovskite solar cells, photovoltaic technology, perovskite material
It's taken nearly 200 years,but scientists in Arizona and Europe have teased out how the molecular switch for sex gradually and adaptively evolved in the honeybee. The first genetic mechanism for sex determination was proposed in the ...
Tags: honeybee, molecular switch for sex, genetic mechanism, sex determination
Polyurethane foam is a thermosetting polymer polymer, which is an excellent insulation material. Its general walls, high bond strength base material, without any adhesives and anchors. Die casting process using field, rigid polyurethane ...
University of California Santa Barbara (UCSB) has been using limited area epitaxy (LAE) to improve the performance of lasers diodes (LDs) grown on free-standing semipolar (20-21) gallium nitride (GaN) substrates [Matthew T. Hardy et al, J. ...
University of California Santa Barbara (UCSB) and Fuji Electric Corp of America have been developing indium gallium nitride (InGaN) solar cell structures in efforts to extend the conversion efficiency of multi-junction photovoltaic (PV) ...
Tags: Nitride Barriers, Electrical
University of California Santa Barbara (UCSB) has developed semipolar (20-2-1) nitride semiconductor laser diodes (LDs) without using aluminium gallium nitride (AlGaN) as the cladding material for optical confinement [A. Pourhashemi et al, ...
Myriad Genetics, a molecular diagnostic company, and biotechnology firm BioMarin Pharmaceutical have signed a research collaboration agreement for identifying tumor types that may be sensitive to BioMarin's investigational product ...
Tags: Myriad Genetics, Biomarin
Chinese Academy of Sciences' Semiconductor Lighting R&D Center at the Institute of Semiconductors in Beijing has developed an electrically driven color-tunable light-emitting diode (LED) based on indium gallium nitride (InGaN) quantum wells ...
Tags: LED, Electrical, Electronics, Semiconductor
Quantum dots are nano-sized semiconductor particles whose emission color can be tuned by simply changing their dimensions. They feature near-unity emission quantum yields and narrow emission bands, which result in excellent color purity. ...
Tags: semiconductor, Quantum
Taiwan’s National Cheng Kung University has developed near-green light-emitting diodes (LEDs) using a new indium gallium nitride (InGaN) growth process that gives devices with a higher peak external quantum efficiency of 48.6% ...
Tags: LEDs, Near-green LEDs, InGaN MOCVD
The Chinese Academy of Sciences’ Research and Development Center for Semiconductor Lighting has been exploring the effect of p-type doping of the barriers in multiple quantum well blue-green (~500nm) light-emitting diode (LED) ...
Tags: Blue-Green LEDs, Electronics
Researchers from the universities of California Santa Barbara (UCSB) and of New Mexico (UNM) have demonstrated semipolar nitride semiconductor blue and green laser diodes (LDs) with part of the upper cladding replaced by indium tin oxide ...
Tags: Iii-Nitride Lasers, Electrical
Researchers in South Korea and USA have been developing graded-composition superlattice electron-blocking layers (GSL-EBLs) for nitride semiconductor light-emitting diodes (LEDs) [Jun Hyuk Park et al, Appl. Phys. Lett., vol103, p061104 ...
Tags: LED, droop GaN EBL, Electrical, Electronics, nitride semiconductor
Researchers based in the USA and Korea have found "an unequivocal correlation between the onset of high injection and the onset of the efficiency droop" of gallium indium nitride (GaInN) light-emitting diodes (LEDs) [David S. Meyaard et al, ...
Tags: LED, Nitride LED, Electrical, Electronics
Researchers at the Georgia Institute of Technology want to put your signature up in lights – tiny lights, that is. Using thousands of nanometer-scale wires, the researchers have developed a sensor device that converts mechanical ...
Tags: Piezo-Phototronic Effect