Transforming Nanoscience Using Spatially Graded 2D Materials
Abstract
Title: Transforming Nanoscience Using Spatially Graded 2D MaterialsObjective:To synthesize spatially graded bandgap nanomaterials using a bottom-up approach and create novel nano-scaledevices based on this new material platform.Approach:The spatially graded" nanomaterials include WS~Te1-~ and WSe~Te1-~ with the composition ratio, ~, varying from 0 to 1 in a designed spatial distribution"" ~(x, y). This new material platform has a unique characteristic: a spatially variant bandgap nano-engineered down to atomic scale."" Utilizing this characteristic, many innovative nanoscale devices can be created.SOW:PI will carry out the following four tasks:" (1) investigate the synthesis of these spatially graded two-dimensional (2D) materials and establish a methodology to control the composition of the nanomaterials with spatial resolution down to nanometer scale; (2) study the current transport in graded bandgap materials and demonstrate highspeed transistors based on these materials; (3) create hyperspectral photodetectors using thesegraded bandgap materials and evaluate their fundamental limits in spatial and spectral resolution;(4) explore the application of these materials as nano-barcodes for flow cytometry in biology and medicine.Future Naval Relevance:This new material platform and its novel devices and applications will advance Naval technologies. The hyperspectral photodetectors can facilitate ground reconnaissance and satellite monitoring. The heterogeneous flexible 2D transistors will enable high-speed wireless communication in smart armor and wound monitoring. The bio-barcodes will be very useful for identifying bio-hazards and disease diagnosis for soldiers. The broadband nanolasers based on thisnew material platform can enable wide-bandwidth optical interconnect and communication foroperation and control of aircraft carriers and missiles.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 29, 2017
- Source ID
- N000141712973
Entities
People
- Wenjuan Zhu
Organizations
- Office of Naval Research
- United States Navy
- University of Illinois Urbana–Champaign