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--- start [2019/10/19 11:18] – ethanminot
+++ start [2026/04/03 15:45] (current) – Added a new images and descriptions of our more current research gus
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+|{{:MoS2SAW1.png?500}}| A pair of inter-digital transducers (IDTs) with a transistor centered in the middle. By using a piezoelectric substrate, the IDT can send a surface acoustic wave (SAW) across the transistor. The SAW creates a time varying electric field across the substrate surface and pushes charge across the transistor.  Dublin's charge pumped graphene was [[https://pubs.aip.org/aip/jap/article/136/2/024302/3303084|featured on the cover of the Journal of Applied Physics]]. Image by Brett Pentecost, fabrication by Dublin Nichols (IDT), Brett Pentecost, and Augustin Griswold|
+|{{:KA 100X.png?500}}|A stack of 2D materials used to create a Van der Waals heterojunction. By using a thin piece of graphite as the gate (contact on the top of the image) and hexagonal Boron Nitride, sensitive 2D materials can be protected from charge traps that occur on SiO2 surfaces. Here, two transition metal dichalcogenides are overlapped to form a junction which has unique sensitivity to light. To build these, the flakes need to be picked up and stacked together mechanically. Image and fabrication by Augustin Griswold. Ethan Hogan and Miller Nelson assisted in finding clean flakes via mechanical exfoliation and AFM.|
 |{{:small_proteins_on_CNT.jpg|}}|Proteins tumbling in solution and binding to a nanotube. Binding events like these can modify the nanotube's resistance, allowing the device to be used as an electronic biosensor. We study the way these sensors operate and what they can accomplish. Hopefully, in the future, inexpensive biosensors devices will be available to rapidly/accurately analyze blood samples. Image by Landon Prisbrey.|
 | {{:suspended.png|}}|A suspended carbon nanotube bridging the gap between a pair of electrodes. The CNT diameter is about 2 nm, it is hanging about 1 micron above the oxide surface. We submerge these devices in liquid environments and introduce biological molecules such as single-stranded dna. Our experiments test the physical mechanisms involved in electronic biosensing, and push the limits of detection speed and sensitivity. Image by Tal Sharf. Fabrication by Tal Sharf and Josh Kevek. |