Remote epitaxy, a promising technology for thin film growth and exfoliation, suffers from substrate damage under harsh conditions. In this regard, researchers recently investigated the effect of nano-sized pits on AlN template surface on GaN remote epitaxy. While GaN thin film could be exfoliated at 750 °C, it failed at 1050 °C. At higher temperatures, the nano pits damaged the graphene layer between the template and the film, causing alterations in the film growth mode.
GIST Scientists Develop Efficient Iridium Catalyst for Hydrogen miragenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miragenews.com Daily Mail and Mail on Sunday newspapers.
Organometal halide perovskites (OHPs) are promising as photoanodes in photoelectrochemical water splitting for hydrogen production. However, the loss of photogenerated charge carriers through recombination along with slow reaction speeds limit their efficiency. Now, researchers from Korea and USA have developed highly efficient OHP-based photoanodes using an approach based on rational design that exhibits an unprecedented catalytic activity and light-to-current conversion efficiency.
Researchers Develop Injectable Bioelectrodes with Tunable Lifetimes miragenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miragenews.com Daily Mail and Mail on Sunday newspapers.
A warmer Arctic has been linked to extreme winter weather in the midlatitude regions. But, it is not clear how global warming affects this link. In a new study, researchers from Korea and USA show, using weather data and climate models, that while the “Warm Arctic-Cold Continent” pattern will continue as the climate continues to warm, Arctic warming will become a less reliable predictor of extreme winter weather in the future.