3 November 2011

Singapore‘s Nanyang Technological University receives Aixtron CCS system for solid state lighting research

Deposition equipment maker Aixtron SE of Herzogenrath, Germany has announced that Nanyang Technological University (NTU) Singapore has received its new Close Coupled Showerhead (CCS) metal-organic chemical vapor deposition (MOCVD) system. Commissioned by the local Aixtron support team, the CCS 3x2-inch wafer configuration system is being used for research into ultra-high-brightness LEDs and related material systems.

“We have established a solid-state lighting (SSL) lab to develop cost-saving, green solutions to generate and harvest light, ” comments NTU associate professor Hilmi Volkan Demir, director of Luminous! Center of Excellence for Semiconductor Lighting and Displays.“ Already we have fabricated and tested nanostructured white LEDs of nanocrystal quantum dot emitters for high-quality mesopic SSL. Areas where the CCS system will be absolutely vital include III-N epitaxy, doping engineering and epitaxial growth optimization as well as color-converting LEDs with high scotopic/photopic ratio, ” he adds.

“As well as being dedicated to GaN LED research, the CCS will provide a much needed teaching facility for our school students getting familiar with MOCVD technology, ” Demir continues. “So, in more than one way the CCS is already proving its usefulness and will continue to do so for many years to come.”

Demir is a faculty member of the Division of Microelectronics at the School of Electrical & Electronic Engineering and Division of Physics and Applied Physics at School of Physical and Mathematical Sciences. He is a recipient of awards including the Singapore National Research Foundation (NRF) Fellowship, the European Science Foundation European Young Investigator Award (EURYI), and the Marie Curie Intra-European Fellowship. He completed his PhD at Stanford University, USA.

The Luminous! Center of Excellence for Semiconductor Lighting and Displays is focused on multidisciplinary studies offering solutions addressing energy efficiency and photometric quality problems in lighting, including the Super-Excitonics Program funded by the NRF Competitive Research Program. Luminous! pursues an integrated approach including materials research, device physics, and applications. The MOCVD facility is dedicated to SSL and displays by developing a new class of solid-state lighting white LEDs integrated with semiconductor nanophosphors.

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Tags: Aixtron MOCVD GaN LEDs SSL

Visit: www.luminous.eee.ntu.edu.sg

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