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S4: LEDs and Photovoltaics Beyond the Light: Common Challenges and Opportunities

 

EMA 2013

 

In today’s Green Economy, there are two seemingly unrelated markets whose maturing technologies are each centered around semiconductors and light. Photovoltaics and LEDs: One generates electricity by efficiently capturing (sun)light, and the other generates light by efficiently consuming electricity. Both technologies have similar challenges to overcome before widespread adoption will take place. Yet there has been little dialog between the two fields. This symposium attempts to draw these two technical disciplines together in an effort to attack similar problems from alternative points of view. The greatest challenge in common is Cost. This challenge could be overcome in both disciplines, for example, with the development of highly efficient semiconductors (>60%), high light extraction/absorption of the substrate/chip/optical systems, better optical coupling, and high-speed, low-cost manufacturing. Another challenge in common is Reliability. This challenge can be addressed by development of environmentally stable materials and encapsulants, better thermal management, and reliable thermal and electrical interconnects.

 

Proposed Symposium Topics

  • Efficient semiconductor materials—traditional (Si, GaN) and nontraditional
  • Transparent conductive electrodes
  • Transparent, thermally conductive encapsulants
  • Thermal management (substrates, die-attach, TIMs, cooling, etc.)
  • Environmental Stability & Lifetime
  • Optical coupling I: structured surfaces and high index materials
  • Optical coupling II: novel light extraction and absorption
  • Low cost, high speed manufacturing

 

Symposium Organizers

  • Adam M. Scotch, OSRAM SYLVANIA, USA
  • Erik D. Spoerke, Sandia National Laboratories, USA

 

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