By Topic

In-situ characterization of polymer crystallization using a low-cost light emitting diode array as optical receiver with photogain

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
De Santis, F. ; Chem. & Food Eng. Dept., Univ. of Salerno, Fisciano, Italy ; Neitzert, H.C.

An experiment useful to investigate crystallinity evolution during fast cooling, comparable with cooling rates attained in industrial processes, is extremely attractive. In this work, a setup able to quench thin polymer films while recording the sample thermal history and light intensity of a laser beam transmitted by the sample is described. A particular feature of the optical measurement setup is the use of a LED array as receiver enabling to monitor as well changes in the polarization properties as changes in light scattering of the polymer during crystallization. Furthermore it could be demonstrated that the LED array can be used as a linear optical detector with photocurrent gain values exceeding 10 when polarized slightly below reverse bias breakdown.

Published in:

Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE  (Volume:3 )

Date of Conference:

18-20 May 2004