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Fundamentals and Application of Large Area Dielectrowetting Optical Shutters

Russell, Ann C
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1418909378

Abstract Details

2014, PhD, University of Cincinnati, Engineering and Applied Science: Electrical Engineering.
The size of electro-optic devices has greatly increased as high-resolution displays with diagonals now exceed 100”. This shows significant maturity in the electronics and materials used to construct large area and inexpensive electro-optical devices. However, there is an unmet need to create large area electro-optic devices which can also exhibit a highly transparent state, with desired transparencies near that of a sheet of glass which is far beyond ~45% transparency of a standard liquid crystal optical shutter and ~60% for suspended particle devices. This is an important problem because numerous applications such as smart windows and transparent signage are most attractive when high optical transparencies can be achieved, especially with simple and low-cost techniques. The aim of this dissertation is to create the 1st large-area electro-optic shutter technology that can provide >80% transparency, and do so with an ultra-simple and economical structure. Our central hypothesis, is that dielectrowetting of an opaque insulating fluid on interdigitated electrodes can provide robust large-area switching even without need for pixilation. Our rationale for conducting this research as a complete dissertation is that the physics of this new device must be fundamentally understood before the true value of such a device can judged in the context of real world applications. Physical effects explored include optical diffraction, switching speed, and microscale wetting/dewetting. Results also include sophisticated 3D modeling which closely matches experimental results. This dissertation provides a solid research foundation for the continued development of large scale dielectrowetting optical shutters.
Jason Heikenfeld, Ph.D. (Committee Chair)
Fred Beyette, Ph.D. (Committee Member)
Altan Ferendeci, Ph.D. (Committee Member)
Sang Young Son, Ph.D. (Committee Member)
Andrew Steckl, Ph.D. (Committee Member)
82 p.
Engineering
dielectrowetting; microfluidics; optical shutters; dielectrophoresis; smart windows; transparent signage

Recommended Citations

Citations

  • Russell, A. C. (2014). Fundamentals and Application of Large Area Dielectrowetting Optical Shutters [Doctoral dissertation, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1418909378

    APA Style (7th edition)

  • Russell, Ann. Fundamentals and Application of Large Area Dielectrowetting Optical Shutters. 2014. University of Cincinnati, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1418909378.

    MLA Style (8th edition)

  • Russell, Ann. "Fundamentals and Application of Large Area Dielectrowetting Optical Shutters." Doctoral dissertation, University of Cincinnati, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1418909378

    Chicago Manual of Style (17th edition)

ucin1418909378
1,361
© 2014, some rights reserved.Creative Commons License Fundamentals and Application of Large Area Dielectrowetting Optical Shutters by Ann C Russell is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Cincinnati and OhioLINK.