Open Boundary Quantum LED Simulator is now available

Open Boundary Quantum LED Simulator (OBQ-LEDsim) is the next-generation self-consistent quantum-corrected drift-diffusion simulator that eliminates artificial boundaries between quantum wells and classical continuum. It

  1. Eliminates the discontinuities of carrier concentrations caused by the artificial boundary conditions,
  2. Numerically captures the wavefunction penetration into barriers and other regions,
  3. Models the recombination rates outside active regions with higher accuracy than the state-of-the-art software, and
  4. Models quantum-confined Stark effects and excitonic effects in various kinds of quantum well structures.

More at OBQ-LEDsim.

Prof. Bayram gave a series of Invited Talks

Prof. Bayram gave a series of invited talks titled “Monolithic Integration of III-V emitters on Si for Ultra-low-power Photonics” and “Through Physics and Smart Materials, Breaking the Efficiency (Droop) Barrier in Light Emitting Diodes for the Ultimate Solid-State Lighting”. Many thanks to the Center for Aggressive Scaling by Advanced Processes for Electronics and Photonics, University of Illinois at Urbana-Champaign and IEEE NTC Mumbai and SPIE IIT Bombay Student Chapters, Indian Institute of Technology, Bombay for their invitation.


Prof. Bayram awarded under DOE’s ARPA-E, the OPEN program

for project titled “Green Light Emitting Diodes for the Ultimate Solid-State Lighting“.

Thanks to the ARPA-E OPEN, ICORLAB led by Prof. Can Bayram in the Department of Electrical and Computer Engineering will pursue direct-emitting novel green light emitting diodes (LEDs) that can enable accelerated solid-state lighting (SSL) adoption to reduce lighting-related energy needs and greenhouse gas emissions by approximately 25% compared to non-SSL. The transition to SSL could reduce U.S. energy needs and greenhouse gas emissions by an additional 55% by 2035 compared to non-SSL, accounting for 5% of the U.S.’ primary energy budget. High efficiency green LEDs enabled by cubic gallium nitride (GaN) is used to eliminate polarization and reduce droop, making them significantly more efficient than traditional III-V based LED technology. Our design could reduce manufacturing costs and facilitate widespread adoption of high efficient color-mixed SSL illumination by commercial and residential markets.

Select Highlights by

– All About Circuits

– Department of Energy

– University of Illinois

LED Lighting awarded Queen Elizabeth Prize for Engineering

The 2021 Queen Elizabeth Prize for Engineering was awarded to Isamu Akasaki, Shuji Nakamura, Nick Holonyak Jr, M. George Craford and Russell Dupuis for the creation and development of LED lighting, which forms the basis of all solid state lighting technology.

Solid state lighting technology has changed how we illuminate our world. It can be found everywhere from digital displays and computer screens to handheld laser pointers, automobile headlights and traffic lights. Today’s high-performance LEDs are used in efficient solid state lighting products across the world and are contributing to the sustainable development of world economies by reducing energy consumption.

Visible LEDs are now a global industry predicted to be worth over $108 billion by 2025 through low cost, high efficiency lighting. LED lighting is 75% more energy efficient than traditional incandescent and compact fluorescent bulbs, and is playing a crucial role in reducing carbon dioxide emissions. LED bulbs last 25 times longer than incandescent bulbs and their large-scale use reduces the energy demand required to cool buildings. For this, they are often referred to as the ‘green revolution’ within lighting.

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