Company Profile

LumiSands Inc
Profile last edited on: 12/20/13      CAGE: 6S6L5      UEI:

Business Identifier: development of Silicon-based nanoparticles to replace Rare-Earth Elements in LED applications
Year Founded
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Location Information

800 Northeast 42nd Street Apartment 303
Seattle, WA 98105
   (206) 403-7887
Location: Single
Congr. District: 07
County: King

Public Profile

LumiSands Inc, a spinout from the University of Washington’s Center for Commercialization, is a Silicon Nano-materials Research & Development firm, working on cost-effective, non-toxic, and eco-friendly options for REE-phosphors with silicon quantum dot phosphor (SiQD-phosphor) technology. Phosphors used in lighting and display solutions are mostly derived from rare-earth elements (REEs), an environmental hazard for both extraction and processing. An added issue is one of cost, as persistently elevated prices and IP restrictions on LED applications have driven the lighting industry to seek alternatives for REE-phosphors. By creating LEDs made of sand, LumiSands has developed an alternative to the rare earth elements. Rare earth elements are used in LEDs to help soften their harsh, blue light. To create an alternative LumiSands uses silicon, derived from sand, which is produced via etching off nano-particles from silicon wafers. Although this element will not usually produce light, it will start to glow if its crystalline particle size is less than five nanometers. The surface is then reinforced and the material added to LED bulbs, red-emitting silicon particles warm and soften the blue light. LumiSands intends to perfect the red technology before moving to other colors, ultimately enabling LEDs to cast a pure, white light with no rare earth elements required at all

Extent of SBIR involvement

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Synopsis: Awardee Business Condition

Employee Range
Revenue Range
Less than .5M
VC funded?
Privately Held
Stock Info
IP Holdings

Awards Distribution by Agency

Most Recent SBIR Projects

Year Phase Agency Total Amount
2012 1 NSF $150,000
Project Title: Silicon Quantum-dot Phosphors for LED General Illumination

Key People / Management

  Chang-Ching Tu -- Chief Executive Officer

  Ji Hoo -- Chief Financial Officer