NANOSCALE EXCITON-MECHANICAL SYSTEMS (NEXMS)
Abstract
We propose to investigate the interactions between exciton and mechanics by monitoring theexcitonic diffusion in an externally driven suspended membrane comprising of room temperatureexcitonic material such as molecular organic dye or their hybrids with monolayer transition metaldichalcogenides. Exciton, an excited state of matter is capable of transporting energy and plays animportant role in organic devices such as photovoltaics and light emitting diodes as well as naturalprocesses such as photosynthesis. Probing their interactions with mechanics, adds a new dimensionality to our understanding of exciton dynamics and the ability to govern such energy exchanges will significantly bolster the performance of the current energy conversion excitonic devices. In this work, we intent to utilize strain induced bathochromic effect i.e. change in the molecular orbital energy levels to direct exciton diffusion spatially towards the lowest energy state. We aim to strain the molecules using a travelling wave, thus facilitating continuous exciton diffusion along the wave. We hope the results from this work will not only influence current excitonic devices but also introduce a new platform for next generation optoexcitonic circuits. Such circuits, which require attojoule switching energies would utilize excitons for communication as well as processing. The knowledge from this research would result in devices with capabilities central to achieving DoD’s mission of land, air and water superiority serving applications in energy generation, information processing, communication, and sensing.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 28, 2017
- Source ID
- FA95501710208
Entities
People
- Parag B. Deotare
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Michigan