LED Phosphors - GTP

LED Phosphors
GTP Family of LED Phosphors
GTP Offers:
• Customization to meet unique customer needs
• Broad range of standard LED phosphors offered
• Dedicated technical support to optimize phosphor performance
• Coating capabilities to enhance critical phosphor characteristics
• In-house research & development to expand potential of LED phosphors
• Nearly 100 years of phosphor development and manufacturing experience

Wide range of LED phosphor produced by GTP
While the amount of phosphor in your LED may be small, your products could not function properly
without it. For your LED’s to perform at the highest level, you need the best phosphor available - LED
phosphor from GTP. GTP has been developing and manufacturing phosphors for nearly 100 years. Our
scientists and technicians constantly push the boundaries of phosphor technology to provide the highest
quality materials available.
YAG Phosphor by GTP
GTP offers Ten types of standard YAG phosphor to meet your immediate needs. GTP also works with our
customers to meet your specific phosphor requirements.
GTP Type
50% Size
Micron (±1)
CIE Color Coordinates
x (±0.006) y (±0.006)
Excitation
Range (nm)
Emission Peak
(±2nm) *
9800 15 0.434 0.547 450-470 540
9801 9 0.434 0.547 450-470 540
9800L 15 0.443 0.541 450-470 544
9801L 9 0.443 0.541 450-470 544
9802 15 0.451 0.535 450-470 548
9803 9 0.451 0.535 450-470 548
9804 15 0.472 0.517 450-470 554
9805 9 0.472 0.517 450-470 554
9806 15 0.495 0.497 450-470 562
9807 9 0.495 0.497 450-470 562
GTP can customize color coordinates, particle size, and emission peaks to meet the unique needs of our customers.
* Emission peaks were obtained from an excitation by blue LED with 18 nm of FWHM
GTP YAG phosphors range from 540 to 562 nm offering
a “drop-in” solution for your product needs.
Global Tungsten & Powders Corp.
1 Hawes Street
Towanda, PA 18848 / USA
As color shifts to more red, thermal stability drops.
GTP YAG offers exceptional thermal stability.
Phone: (570) 268-5000
Fax: (570) 268-5323
e-mail: info@globaltungsten.com

Why LED’s?
• Efficiency - LED’s consume 50% - 90% less power than conventional bulbs
• Longevity - A lifespan of 50,000 hours means you won’t change a bulb for years
• Environmental - LED’s do not contain mercury & are made of recyclable materials
• Quality - LED’s offer light with unnoticeable lumen deterioration
• Color - LED bulbs can produce a color very similar to incandescent bulbs
• Safety / Heat - LED’s produce up to 90% less heat than incandescent bulbs
Why LED Phosphor from GTP?
• GTP offers a wide range of YAG phosphor with superior performance
• GTP scientists work with our customers to develop leading-edge phosphor solutions
• GTP provides high volume, high quality manufacturing capabilities
• GTP phosphor offers exceptional stability and long life
• GTP analysis laboratory ensures consistent quality
• GTP phosphor experience spans nearly 100 years
Global Tungsten & Powders Corp.
1 Hawes Street
Towanda, PA 18848 / USA
Silicates by GTP
GTP continues to expand it’s silicate based LED phosphor
offerings. Starting with Red/Orange, GTP offers high quality
silicate LED phosphors that offer brilliant color and unmatched
efficiency. GTP will continue to add new silicates to
our portfolio.
GTP Type
50% Size
Micron (±1)
CIE Color Coordinates
x (±0.006) y (±0.006)
Excitation
Range (nm)
Emission Peak
(±2nm)
9840 15 0.585 0.413 300-550 598
Silicate phosphors are quite
sensitive to the effects of humidity.
GTP’s coatings will
greatly increase the life of
silicate phosphors in your application.
GTP has applied
protective coatings to various
phosphor for over 30 years.
We are now applying that expertise
to LED phosphor.
Phone: (570) 268-5000
Fax: (570) 268-5323
e-mail: info@globaltungsten.com

LED Phosphor
Global Tungsten & Powders
1 Hawes Street
Towanda, PA 18848
USA
Phone: +1 (570) 268-5000
Fax: +1 (570) 268-5323
Info@globaltungsten.com
Powders That Shape Your World
Phosphor Family Excitation Range (nm) Emission Peak (nm)
Yttrium Aluminum Garnet 450 - 470 535 - 565
Strontium/Barium Ortho-
and Tri-Silicates
200 - 500 510 - 600
Calcium Sulfide 365 - 470 650
Strontium Sulfide 365 - 470 622
Strontium Thiogallate 254 - 470 538
GTP can customize color coordinates, particle size, and emission peaks to meet the unique needs of our
customers.
LED Phosphors - Coatings
• Vapor deposition technology with fluidized bed reactors
• Conformal, impermeable coatings on phosphor particle
• Batch sizes range from 50 grams to 100 kilogram
• Coating of GTP phosphors or toll coating of your phosphor
• GTP has several coating options that can expand critical characteristics
Kesha Sinsabaugh
Customer Care Specialist
Telephone: (570) 268-5398
Fax: (570) 268-5323
e-mail: kesha.sinsabaugh@globaltungsten.com
David Sheppeck
Business Segment Manager - Lighting
Telephone: (570) 268-5376
Fax: (570) 268-5323
e-mail: david.sheppeck@globaltungsten.com
Company Website
www.globaltungsten.com
Company Contact Information
1 Hawes Street
Towanda, PA 18848 USA
Telephone: (570) 268-5000
Fax: (570) 268-5323
• Dedicated Technical Support
• In-house R&D
History of Global Tungsten & Powders:
GTP has been on the cutting edge of phosphor development
and production for nearly 100 years. Beginning
in 1916 as the Towanda Phosphor Works,
GTP first produced phosphor for X-Ray intensifying
screens. In 1936, GTP started producing phosphor for
fluorescent lamps, followed by television phosphors,
EL phosphor, UV phosphor and now LED phosphor.
The information and recommendations contained in this publication are based upon data collected by Global Tungsten & Powders Corp. and believed to be
correct. However, no guarantee or warranty of any kind, expressed or implied, is made with respect to the information contained herein, Global Tungsten
& Powders Corp. assumes no responsibility for the results of the use of products and processes described herein. No statements or recommendations made
herein are to be construed as inducements to infringe any relevant patent, now or hereafter in existence.