Day 2 | Friday

For the material focused sessions taking place on Day 2 of the conference, attendees are not limited to one interest area and are free to attend presentations from either conference track!

Day 2 | Friday

Registration & Opening Remarks

  1. Registration Table Open and Hot Breakfast Available

  2. Opening Remarks

Quantum Dots Track

Quantum Dots Track

This session will deep-dive into the latest and greatest QD innovations in academia and industry.

  1. QD-BCP Hybrids

    Yeon Sik Jung | Associate Professor of KAIST

    8:30 QD- BCP Hybrids This talk introduces how the photoluminescence (PL) of QD composite films can be enhanced through an assembly of QDs and a block copolymer (BCP). A BCP matrix casted under controlled humidity provides multi-scale phase-separation features based on (1) sub-μm-scale spinodal decomposition between polymer-rich and water-rich phases and (2) sub-10-nm-scale microphase separation between polymer blocks. The BCP-QD composite induces significant enhancement of both light absorption and extraction efficiencies via effective random light scattering, collectively achieving 21-fold enhanced PL over a broad spectral range.

  2. Status and Outlook for QD-photoresist Applications in the Display Industry

    Ryu Takeko | Mgr. of Planning & Coordination Office, It-related Chemicals Sector of Sumitomo Chemical

    QD-color filter is a promising material that delivers wide color gamut and wide view angle to future display.  We’ve been developing QD-photoresist that is able to form patterned QD-color filter utilizing our color-photoresist technology.  This presentation will discuss recent progress in QD-photoresist and its application in the display industry.

  3. Quantum Dots For Color Conversion Applications

    Dr. Ravi Tangirala | R&D Program Manager of Nanosys Inc.

    Quantum dot color conversion (QDCC) technology, in which traditional color filters are replaced by patterned subpixels containing green or red QDs, will lead to displays with higher brightness, color tunability and viewing angles. QDCC layers can be applied to any display containing a blue light source, including LCDs, OLEDs and micro-LEDs, and fabricated using inkjet printing or photolithography, depending on the feature size requirement. Nanosys has developed specially designed Cd-free QDs with enhanced blue absorption and green/red emission for use in color conversion. We will discuss these design criteria, as well as the strategies used for compatibilizing the QDs with inks or photoresists used for deposition.

  4. QD EL update on TCL’s Progress and Introduction to Their Current Work

    Dr. Longjia Wu | Materials Development Expert of TCL Corporate Research

    Detailed Abstract Coming Soon!

  5. Networking Break & Coffee

  6. QLEDs for Photomedical Applications

    Yajie Dong, Ph. D. | Founder and Chief Scientific Officer of QLEDCures LLC

    Quantum dot light emitting diodes (QLEDs) with outstanding wavelength tunability, ideal color purity, sufficient power density and unique flexible form factors are high promising photomedical light sources that could facilitate widespread clinical applications of photodynamic therapy (PDT) or photobiomodulations (PBM). In this talk, I will share the progresses on flexible QLEDs development and photomedical in-vitro studies at QLEDCures, University of Central Florida and our medical partner institutions. The perspective of flexible QLEDs for various photomedical applications in the near and long term will also be discussed.

  7. Novel Photodefinable QD Ligand Systems

    Yu Kambe, CEO & Co-Founder, NanoPattern

    Abstract and speaker details coming soon!

  8. Presentation To Be Confirmed

  9. Networking Lunch

    Both conference tracks will eat lunch together

Phosphor Track

Phosphors Track

This session will deep-dive into the latest phosphors innovations in academia and industry.

  1. Group VI Metalates as Thermosensitive Phosphors

    Prof. Federico Rabuffetti | Assistant Professor of Chemistry of Wayne State University

    Group VI metal oxides featuring MoO4–2 and WO4–2 anions are ideal host materials for thermosensitive phosphors activated by Mn4+ or rare-earth metals. A distinct feature of these materials is their structural diversity in terms of metal coordination and connectivity, which makes them an ideal platform to exercise compositional control of their temperature-dependent luminescence response. In this talk, I will highlight the potential of molybdate and tungstate phosphors as luminescent thermometers. I will show that selected Mn4+-activated metalates serve as bandshift thermometers with a temperature sensitivity comparable to that of quantum dots but with a much broader usable temperature range.

  2. Development of Yellow/Orange Nitride Phosphors for High-Power Excitation

    Dr. Shiho Takashina | Senior Manager of Mitsubishi Chemical Corporation

    Lights under high power excitation is collecting a lot of attention in solid state lighting fields lately. Applications under blue laser excitation instead of LED are being developed actively. Phosphors which can be used under blue laser excitation are limited due to their saturation and thermal quenching issues. Orange and red phosphors suitable for such an application are needed. We succeeded in widening emission color of La3Si6N11:Ce between yellow and orange with superior saturation and thermal quenching properties. We will report this phosphor and our recent activities.

  3. Single Crystal Phosphor Based Components and Applications

    Jan Kubat, Ph.D. | Product Line Manager of CRYTUR

    Solution with single crystal as an excellent phosphor with internal quantum efficiency over 95% up to 250°C, high thermal conductivity (~10 W/m.K) and luminescence thermal quenching over 200°C provides new opportunities for a components and design of high power lighting applications. But even employing highly efficient monocrystalline phosphor with multiple high power laser diodes can lead to overheating and then thermal management become crucial. We have optimized solutions based on principles of metal contact which assures the most efficient connection of the phosphor to the copper heat sink to deal with the heat. Unique single crystal phosphor based applications and will be introduced.

  4. Presentation To Be Confirmed

  5. Networking Break & Coffee

    Both conference tracks will break together

  6. Far Red Phosphors for Horticulture LED Systems

    William Beers, Ph.D. | Principal Engineer - Phosphors of GE Current

    The far-red (FR) region (700 nm-740 nm) of the electromagnetic spectrum has significant implication for plant growth and development. Exposure to red light regulates processes ranging from seed germination, height, leaf expansion, branching, plant immunity, circadian rhythm, leaf chlorophyll concentration to freezing tolerance. Additionally, FR light plays a role in photosynthesis. In this talk we will discuss research undertaken to develop phosphor converted far-red LEDs for horticultural lighting. In particular, the FR luminescence from transition metal and rare earth ions in oxide and fluoride lattices that are excitable by the blue light from the LED device is emphasized.

  7. Presentation to be Confirmed - Diode Laser Pumped/High Power Density LEDs

    Abstract to come!

  8. Presentation To Be Confirmed

    Abstract to come!

  9. Networking Lunch

    Both conference tracks will eat lunch together

Session V: Novel Materials and Applications

This closing session will bring all delegates back together to explore and highlight the novel and emerging uses of phosphors and quantum dots in several different applications.  Presentations from both academia and industry will provide an in-depth look at new technologies and applications being explored by both the phosphor and QD communities - and what is potentially going commercial next.

  1. Towards the Optimum Single Ion Luminescence Thermometer – An Account for Simple and Quantitative Guidelines

    Dr. Markus Suta | Postdoctoral Researcher of Utrecht University

    Despite the quickly emerging importance of luminescence nanothermometry for, e.g. catalysis or especially bio-applications to remotely measure temperatures, a general and widely applicable theoretical framework is still lacking. Not only would this save the effort to find new suited nanothermometers by a trial-and-error strategy and lots of optimization, but even clarify what the appropriate conditions relevant for the achievable temperature precision are in order to use a certain nanothermometer. In this contribution, an introduction for a generalized model for luminescence thermometers working with dopant ions such as transition metal or lanthanide ions will be presented. The emphasis will lie on the simple quantitative guidelines following from the fundamental properties of the Boltzmann distribution as the governing temperature calibration law. Moreover, the boundary conditions for the validity and failure of that calibration law will be addressed. Finally, it will also be demonstrated that the predicted thermometry performances of potential candidates are indeed experimentally realized.

  2. Interparticle Energy Transfer: A Novel Toolbox for Spectral Design

    Dr. Anne Berends | Materials Scientist of Seaborough Research

    Line emitters (FWHM <5 meV) have an enormous potential for use in LEDs, because they allow both improvement of color rendering while maintaining high lm/W for white LEDs. However, conventional line emitters (i.e. trivalent lanthanide doped phosphors) lack absorption in the blue spectral region, thus limiting their use as color converters on blue LEDs. This bottleneck can be overcome by our nanoscale engineering approach, based on inter particle energy transfer. Making use of inter particle energy transfer allows tuning of absorption and emission wavelengths over a wide range of the spectrum. When the initial challenge of preparing high quality nanoparticles has been overcome, the nanoscale brings in various additional advantages, such as solution processability and a gamut of material treatment possibilities borrowed from the well developed field of semiconductor quantum dots. This talk will discuss the relevant energy transfer process in more detail and provide experimental evidence for this new sensitization mechanism paving the road towards blue excitable line emitters.

  3. Photovoltaic Form Factors for Quantum Dot Luminescent Solar Concentrators

    David Needell | PhD Researcher in Solar PV of Caltech

    With over 50 years of research and development, luminescent solar concentrator (LSC) designs for photovoltaic (PV) applications continues to progress toward a commercially realizable technology.  With the advent of the quantum dot (QD) for LSCs in the late 20th century, unprecedented levels of light trapping and harvesting for LSCs at the lab scale have shown promise for sunlight-harvesting applications.  However, despite accomplishments in these small-scale devices, a performance-scalable LSC device for solar energy conversion remains an enormous and unanswered challenge.  Here we examine several form factors for LSCs to enable both high light to electrical power efficiency as well as device-size scalability.

  4. Presentation to be Confirmed - Wave Length Conversion for Solar

  5. Panel: Open Discussion with the 2020 Advisory Board

    • Future Outlook and Perceptions
    • Industry Call to Action
    • Vision for 2021 Meeting

    Participating Board Members TBA!

  6. Poster Session Winner Announced

    More details on this year's poster session will be available soon!

  7. Closing Remarks for 2020