Navigation Links
Flat panel displays


Introduction
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.


Conclusion
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
'"/>

Source:


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:
*Name:
*Comment:
*Email:


(Date:12/2/2016)... , Dec. 2, 2016  The Multiple Myeloma ... from the MMRF CoMMpass Study SM —the largest and ... precision medicine in multiple myeloma—will be presented at the ... Meeting & Exposition in San Diego ... to optimize treatment strategies, as well as identify pathways ...
(Date:12/2/2016)... ... December 01, 2016 , ... ... share findings demonstrating the value of DNA microarray comparative genomic hybridization (array ... San Antonio Breast Cancer Symposium. Using molecular test results from tumors with ...
(Date:12/2/2016)... ... 2016 , ... Orthogonal, a Chicago-based medical device software company, ... 510(k) clearance for their flagship medical device, SimplECG. , With this FDA approval, ... rely on cloth-based nanosensors. While other companies have attempted to focus on wearable ...
(Date:12/2/2016)... Laboratories, a world leader in rapid infectious disease tests, introduced the Company,s newest product, ... (Photo: http://photos.prnewswire.com/prnh/20161201/444905 ) Continue Reading ... ... , , bioLytical was invited by ... the INSTI HIV Self Test to 350 pharmacy representatives in Nairobi ...
Breaking Biology Technology:
(Date:6/27/2016)... Research and Markets has announced the addition ... to their offering. The report ... to grow at a CAGR of 12.28% during the period 2016-2020. ... in-depth market analysis with inputs from industry experts. The report covers ... The report also includes a discussion of the key vendors operating ...
(Date:6/22/2016)... 22, 2016 On Monday, the Department of ... to share solutions for the Biometric Exit Program. The ... Border Protection (CBP), explains that CBP intends to add ... the United States , in order to ... imposters. Logo - http://photos.prnewswire.com/prnh/20160622/382209LOGO ...
(Date:6/16/2016)... SAN FRANCISCO , June 16, 2016 /PRNewswire/ ... Market size is expected to reach USD ... report by Grand View Research, Inc. Technological proliferation ... and banking applications are expected to drive the ... ) , The development of ...
Breaking Biology News(10 mins):