Color control through FRET efficiency modulation using CDI (Conference Presentation)

Karni Wolowelsky; Eric Guyes; Shimon Rubin; Matthew Suss; Moran Bercovici; Carmel Rotschild

doi:10.1117/12.2251309

21 April 2017 Color control through FRET efficiency modulation using CDI (Conference Presentation)

Karni Wolowelsky, Eric Guyes, Shimon Rubin, Matthew Suss, Moran Bercovici, Carmel Rotschild

Proceedings Volume 10126, Advances in Display Technologies VII; 101260F (2017) https://doi.org/10.1117/12.2251309
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

Although much progress was made in light emitting devices, the ability to electrically control their spectral emission remains limited. We will present a novel approach and experimental results for dynamic color control, by electrically modulating the non-radiative Forster resonance energy transfer (FRET) efficiency between donor and acceptor dyes in a solution. FRET efficiency depends on the 6th power of the distance between donor and acceptor dye molecules, and thus, it is sensitive to variations in acceptor's concentration. Controlled acceptor concentrations could be achieved by attracting or repelling ionic dyes from the electrodes using a capacitive deionization (CDI) cell, with high surface area porous electrodes. This approach to dynamic color control may open new directions in 100% fill-factor displays, and can be expanded to energy saving applications such as controlling building’s external wall emissivity. We studied the modulation of a single dye emission using a CDI cell with negatively charged Fluorescein Sodium Salt in aquatic solution. Photoluminescence was measured along few charging-discharging CDI cycles and showed the ability to control extensive optical response through CDI. We experimented with two types of FRET-pair dyes: a) anion-cation, where the acceptor and the donor ions are oppositely charged, and b) zwitterion and ion, where the donor is neutral. We found that electrical control on FRET in aquatic solution is weak, due to hydrophobic attractive interaction between the acceptor and the donor. In order to avoid this effect, we are experimenting FRET control in organic solvents. These results will be presented in the talk.

Conference Presentation

Citation Download Citation

Karni Wolowelsky, Eric Guyes, Shimon Rubin, Matthew Suss, Moran Bercovici, and Carmel Rotschild "Color control through FRET efficiency modulation using CDI (Conference Presentation)", Proc. SPIE 10126, Advances in Display Technologies VII, 101260F (21 April 2017); https://doi.org/10.1117/12.2251309

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

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Fluorescence resonance energy transfer

Modulation

Electrodes

Ions

Control systems

Energy efficiency

Luminescence

Show All Keywords

Keywords/Phrases

Search In:

Publication Years