Overview

We love physical electronics. We believe electronics and internet can do more to our life. Thus, we want to integrate them together so the physical electronics become interactive (live). To enhance their applicability, we want them to be of "free" form: flexible, stretchable, reconfigurable in their physical form. We want to democratize (take) such electronics to anyone, anywhere, anytime to empower us with information. By anyone, we mean any age group - the electronics will be such that anyone can use them, their interactivity will allow them to be user friendly, whoever has a great idea will be able to use such electronics to build new things, to demonstrate the beauty and power of the conceived idea. By anyone, we also mean the electronics will be of low cost so they can be easily affordable. By anywhere and anytime, we mean easy accessibility, reliable and robust communication. All these requirements will shape our engineering focused research.
 
Traditional way to build physical electronics is to focus on a material, a specific physics, a process, a characterization methodology, a device. But for us, we interface with the end users (in our case, various disciplines) to understand how a new electronics or electronic system can enable a new application which is not possible with the existing materials, processes, devices, physics and such. Based on their inputs, we design and build new physical electronics. To do so, we explore new physics, discover new materials, develop new processes, plan integration strategy, design new characterization methodology, equipment and such.
 
Impact of our research is resonated in future generation computing including big data, cloud computation, cyber-physical systems and augmented reality, clean and readily available energy, and health care. The uniquely distinguishable strength of our research is "papers to wafers" - anything drawn on the paper, we can fabricate on wafer! 
 
Two principles we follow before undertaking any research project: (i) are we going to address one of the most difficult engineering challenges (i.e. impact of the topic)? and (ii) is it the first ever to open a new frontier in science (i.e. novelty)? High risk, high gain is our mantra. One of the riskiest factors of our group is we have only students as researchers, but they are the richest assets for our group too.
 
Leveraging their vigor and positive energy, we relentlessly pursue to succeed against all odds by stretching the limit of human imagination by innovative integration of science and engineering to make this world better than we have found her.

The first ever from our group:

Devices: 
1. Silicon nanotube field effect transistor with core-shell gate stacks (Nano Lett. 2011)
2. Saliva generated power using micro-scale microbial fuel cell (NPG Asia Mater. 2014)
3. Wavy transistors and circuits (APL 2012, APL 2013, pss-RRL 2013, EDL 2015, T-ED 2016)
4. Flexible thermoelectric generators (Small 2012)
5. Flexible FinFET CMOS with sub-20 nm fins (Adv. Mater. 2014)
6. Stretchable TEG (Nano Energy 2016)

Materials:
1. Reversibly bi-stable flexible materials (APL 2015 - Top paper 2015)
2. Amorphous metal WNx based nanoelectromechanical switch (NEMS) with sub 0.7V pull-in voltage and operational for 8 trillion cycles. (Nanotechnology 2015)
3. Silicon tin (SiSn) using a low-cost CMOS compatible deposition and annealing process. (JAP, 2015, APL 2015, pss-RRL 2013)
4. Room temperature mobility of 11,000 cm2/V.s at Vdd = 1V from g-FET. (ACS Nano 2013)

Integration:
1. Decal electronics (Adv. Mater. Tech. 2016)
2. Coin electronics (Small 2016)
3. Lefo electronics (2016)
4. Embedded electronics (2016)

Applications:
1. Thermoelectric windows (Sci. Rep. 2012)
2. Smart thermal patch (Adv. Healthcare Mater. 2014)
3. Reconfigurable electronics (APL 2014)
4. Wearable stretchable antenna with 390 meters communication at 2.54 GHz (Adv. Funct. Mater. 2015)
5. Paper skin (Adv. Mater. Tech. 2016) 
6. Self destructible CMOS electronics (2016)
7. Personalized medicinal platform (2016)
8. Paper watch (2016)
9. Smart orthodontic (2016)
10. Smart robonics (2016)​





 
 
 

Multimedia: Integrated Nanotechnology for Smart Living and Sustainable Future

Silicon nanotube FET [Click video here]

Flexible silicon [Click video here]