UV sensors based on liquid crystals mixtures

Andro Chanishvili; Gia Petriashvili; Guram Chilaya; Riccardo Barberi; Maria P. De Santo; Mario A. Matranga; F. Ciuchi

doi:10.1117/12.663352

20 April 2006 UV sensors based on liquid crystals mixtures

Andro Chanishvili, Gia Petriashvili, Guram Chilaya, Riccardo Barberi, Maria P. De Santo, Mario A. Matranga, F. Ciuchi

Author Affiliations +

Proceedings Volume 6192, Organic Optoelectronics and Photonics II; 619226 (2006) https://doi.org/10.1117/12.663352
Event: SPIE Photonics Europe, 2006, Strasbourg, France

Abstract

The Erythemal Response Spectrum is a scientific expression that describes the sensitivity of the skin to the ultraviolet radiation. The skin sensitivity strongly depends on the UV wavelength: a long exposition to UV radiation causes erythema once a threshold dose has been exceeded. In the past years several devices have been developed in order to monitor the UV exposure, most of them are based on inorganic materials that are able to mimic the human skin behaviour under UV radiation. We present a new device based on liquid crystals technology. The sensor is based on a liquid crystalline mixture that absorbs photons at UV wavelength and emits them at a longer one. This system presents several innovative features: the absorption range of the mixture can be varied to be sensitive to different wavelengths, the luminescence intensity can be tuned, the system can be implemented on flexible devices.

Citation Download Citation

Andro Chanishvili, Gia Petriashvili, Guram Chilaya, Riccardo Barberi, Maria P. De Santo, Mario A. Matranga, and F. Ciuchi "UV sensors based on liquid crystals mixtures", Proc. SPIE 6192, Organic Optoelectronics and Photonics II, 619226 (20 April 2006); https://doi.org/10.1117/12.663352

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE