skip to main content

Title: NREL Invention Speeds Solar Cell Quality Testing for Industry (Fact Sheet)

A solid-state optical system, invented by the National Renewable Energy Laboratory (NREL), measures solar cell quantum efficiency (QE) in less than a second, enabling a suite of new capabilities for solar cell manufacturers. QE is a measurement of how cells respond to light across the solar spectrum, but traditional methods for measuring QE had been too slow, limiting its application to small samples pulled from the production line and analyzed in laboratories. NREL's technique, commercialized by Tau Science as the FlashQE(TM) system, uses a solid-state light source, synchronized electronics, and advanced mathematical analysis to parallel-process QE data in a tiny fraction of the time required by the current method, allowing its use on every solar cell passing through a production line.
Publication Date:
OSTI Identifier:
1090164
Report Number(s):
NREL/FS-6A42-59016
DOE Contract Number:
AC36-08GO28308
Resource Type:
Technical Report
Resource Relation:
Related Information: Innovation Impact: Solar Manufacturing, NREL (National Renewable Energy Laboratory)
Research Org:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy Solar Energy Techologies Program
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 77 NANOSCIENCE AND NANOTECHNOLOGY; SOLAR CELL; QUANTUM EFFICIENCY; QE; TAU SCIENCE; FLASHQE; REAL-TIME QE; LIGHT-EMITTING DIODES; LEDS; PRODUCTION LINE; IN-LINE TESTING; FOURIER TRANSFORMS; BEAVERTON, OREGON; PARALLEL PROCESSING; OREGON STATE UNIVERSITY; DIAGNOSTIC; Solar Energy - Photovoltaics