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SMART Investigates The Science Behind Varying Performance Of Different Colored LEDs

SMART Investigates The Science Behind Varying Performance Of Different Colored LEDs The findings pave the way to develop more efficient next-gen LEDs that cover the entire visible spectrum. Researchers from the Low Energy Electronic Systems (LEES) interdisciplinary research group at Singapore-MIT Alliance for Research and Technology (SMART), MIT’s research enterprise in Singapore, together with MIT and National University of Singapore (NUS), have found a method to quantify the distribution of compositional fluctuations in the indium gallium nitride (InGaN) quantum wells at different indium concentrations. InGaN light emitting diodes (LEDs) have revolutionized the field of solid-state lighting due to their high efficiencies and durability, and low costs. The color of the LED emission can be changed by varying the indium concentration in the InGaN compound, giving InGaN LEDs the potential to cover the entire visible spectrum. InGaN LEDs with relatively low amounts of indium compar

Study: Ride-Sharing Increases Urban Congestion

Study: Ride-Sharing Increases Urban Congestion New research shows that ride sharing contributes to increased congestion and decreased transit ridership. April 28, 2021, 12pm PDT | Diana Ionescu | While ride-sharing has been credited with being more environmentally friendly than taxis and private vehicles, a new study from the the Future Urban Mobility (FM) Interdisciplinary Research Group (IRG) at Singapore-MIT Alliance for Research and Technology (SMART), MIT, and Tongji University assessing the impacts of ride-sharing on urban mobility in the U.S. found that the entrance of TNCs [Transportation Network Companies] led to increased road congestion in terms of both intensity and duration. The study also found that public transit ridership decreased by 8.9 percent, while private car ownership experienced an insignificant decrease of only 1 percent.

Ride-Hailing Makes Road Congestion Worse, Study Finds (Again)

Ride-Hailing Makes Road Congestion Worse, Study Finds (Again)
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SMART investigates the science behind varying performance of different colored LEDs

Credits: Image courtesy of the Singapore-MIT Alliance for Research and Technology Previous image Next image Researchers from the Low Energy Electronic Systems (LEES) interdisciplinary research group at Singapore-MIT Alliance for Research and Technology (SMART), MIT’s research enterprise in Singapore, together with MIT and National University of Singapore (NUS), have found a method to quantify the distribution of compositional fluctuations in the indium gallium nitride (InGaN) quantum wells at different indium concentrations. InGaN light emitting diodes (LEDs) have revolutionized the field of solid-state lighting due to their high efficiencies and durability, and low costs. The color of the LED emission can be changed by varying the indium concentration in the InGaN compound, giving InGaN LEDs the potential to cover the entire visible spectrum. InGaN LEDs with relatively low amounts of indium compared to gallium, such as the blue, green, and c

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