Navigation Links
Flat panel displays

One of the fastest-growing segments of the semiconductor industry is concerned with a new generation of graphic displays for communications and high-definition television sets. For phosphors that might be used as the active medium in such displays, the critical characteristics are the lifetimes and wavelengths of their emissions.

Experiment and Results
Because the lifetimes and wavelengths of emissions were required, the SPEX FLUOROLOG-τ steady-state and lifetime spectrofluorometer was chosen for this investigation. To further complicate matters, the lifetime of the phosphor had to be obtained in a short period (three to five minutes) because of the rapidly changing character of the material. In addition, the phosphor and matrix were highly scattering, so stray-light rejection was crucial.

Figure 1 shows the emission spectrum of the final phosphor, confirming a useful visible emission dominated by the 550-nm peak.

In Figure 2 the results of the quick lifetime study (eight frequencies scanned in five minutes) indicate a three-component system, dominated by a very fast (109 s) decay. This fast emission assures that the phosphor will produce a high quantum yield within a timeframe compatible with refreshing the CRTs screen.

This particular investigation of phosphor emission characteristics was made possible by the excellent stray-light reflection, sensitivity, and wide lifetime range of the FLUOROLOG-t producing rapid and accurate characterization of the phosphor.

back to top


Page: All 1

Related biology technology :

1. National stem-cell panel, including UW profs, urges close watch on research
2. Star panel re-evaluates Sarbanes-Oxley one year in at SEC headquarters
3. Gates displays softwares future to UW-Madison students
4. Outpouring of tsunami relief displays power of the Internet
Post Your Comments:

(Date:10/9/2017)... , ... October 09, 2017 , ... At its national ... Christopher Stubbs, a professor in Harvard University’s Departments of Physics and Astronomy, has been ... a member of the winning team for the 2015 Breakthrough Prize in Fundamental physics ...
(Date:10/7/2017)... ... October 06, 2017 , ... ... consulting for microscopy and surface analysis, Nanoscience Instruments is now expanding into ... a broad range of contract analysis services for advanced applications. Services will ...
(Date:10/6/2017)... ... October 06, 2017 , ... The HealthTech Venture Network (HTVN) ... their fourth annual Conference where founders, investors, innovative practitioners and collaborators are invited ... competition showcasing early stage digital health and med tech companies. , This day-long ...
(Date:10/5/2017)... ... October 05, 2017 , ... Understanding the microbiome, the millions ... human health. Gut Love: You Are My Future, the newest exhibit on display at ... it explores the human condition through the lens of the gut microbiome. , ...
Breaking Biology Technology:
(Date:5/16/2017)... , May 16, 2017   Bridge Patient ... organizations, and MD EMR Systems , an ... partner for GE, have established a partnership to ... product and the GE Centricity™ products, including Centricity ... These new integrations will allow ...
(Date:4/17/2017)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... its 2016 Annual Report on Form 10-K on Thursday April 13, ... ... the Investor Relations section of the Company,s website at ... . 2016 Year Highlights: ...
(Date:4/11/2017)... , April 11, 2017 No ... but researchers at the New York University Tandon ... of Engineering have found that partial similarities between ... systems used in mobile phones and other electronic ... The vulnerability lies in the fact ...
Breaking Biology News(10 mins):