GE Global Research Shares Exclusive Insights on Quantum Dots
Smithers Apex had the opportunity to sit down with Dr. James Murphy, Senior Research Scientist at GE Global Research ahead of his presentation, Red PFS Phosphor as a Competitive Material to Red Emitting QDs for Displays and Lighting, at this year's Quantum Dots Forum.
How did you become involved with Quantum Dots?
Dr. Murphy: I synthesized my first quantum dot sample (InP) in 2000 working in graduate school at the University of Colorado under Art Nozik. Art’s group was among the first groups to synthesize InP QDs, so it was great for me to see this material become commercialized.
What is the greatest and most exciting advancement you've seen in the quantum dots industry so far?
Dr. Murphy: I enjoy learning about the advancements in core shell quantum dots and quantum dot containing films. A shell is required around QDs to make them less sensitive to air and moisture but this shell can also create lattice strain and defects that lower the quantum efficiency of the material. The progress that has been made in balancing this trade off and upscaling this process is truly exciting to me.
What are some of the obstacles facing the application of quantum dots?
Dr. Murphy: Reliability and system cost are the two biggest issues. QDs are competing against on-chip, wide color gamut phosphor solutions such as GE’s TriGain technology that have recently been commercialized by multiple vendors.
What is the biggest area of advancement in the quantum dots market?
Dr. Murphy: An on-chip, reliable QD containing package would result in much faster penetration into display and lighting markets. Personally, I’d also love to see QDs overcome the challenges that Art Nozik covered in his QD Forum talk of 2016 to be used as revolutionary next generation solar materials.
Why should attendees register to hear your presentation?
Dr. Murphy: As a graduate student and postdoc working on quantum dots, I did not really appreciate how impressive the existing technologies were that QDs were working towards displacing from a reliability point of view. I hope that I can use my experience in both quantum dot and conventional phosphor synthesis to present a more clear picture of these performance differences.