Coffee ring effect, Fluid dynamics, piezoelectric materials, Photonic crystals, self-assembly of particles, flexible electronic devices, inkjet printing, Micro- and bio-fluidics, Evaporating Drops
The study of the classical mechanics with applications related to Fluid Mechanics by using flow visualization techniques based on optical method and state-of-the-art flow measurement techniques; in particular, Particle Image Velocimetry, Particle Tracking Velocimetry, high-speed imaging, fluorescence imaging. Research interests include: Self-Assemble of Nanoparticles, Photonic Crystals, Inkjet Printing Based Micro-/Nanofabrication, Micro-/Nanofluidics, Piezoelectric, Flexible Electronic Devices, Photolithography, Electrokinetics Numerical Simulations and Biosensors.
Articles in peer-reviewed journals:
Ashish Kumar Thokchom, B. J. Medhi, S.K. Majumder and A. Singh. Analysis of circulation reversal and particle transport in evaporating drops. Microgravity Science and Technology 2021, 20.
Ashish Kumar Thokchom and S. Shin. Dynamical Clustering and band formation of particles in a Marangoni vortexing droplet. Langmuir 2019, 35, 27, 8977-8983. (Impact Factor- 3.683)
B. J. Medhi, Ashish Kumar Thokchom, Anugrah Singh and Sadhan Mahapatra. Experimental and computational study on flow over stepped spillway. JMST 2019, 33, 2101-2112. (Impact Factor- 1.221)
Q. Zhou, J. G. Park, R. Nie, Ashish Kumar Thokchom, D. Ha, J. Pan, S. I. Seok, and T. Kim. Nanochannel-Assisted Perovskite Nanowires: From Growth Mechanisms to Photodetector Applications. ACS Nano, 2018, 12, 8, 8406-8414. (Impact Factor- 13.903)
Q. Zhou, Jun Gyu Park, K.N. Kim, Ashish Kumar Thokchom, J. Bae, J.M. Baik, Taesung Kim. Transparent-Flexible-Multimodal Triboelectric Nanogenerators for Mechanical Energy Harvesting and Self-Powered Sensor Applications. Nano Energy 2018, 48, 471-480. (Impact Factor- 15.548)
H.K. Chang, G. T. Chang, Ashish Kumar Thokchom, T. Kim and J. Park. Ultra-fast responsive colloidal–polymer composite-based volatile organic compounds (VOC) sensor using nanoscale easy tear process. Scientific Reports 2018, 8, 5291. (Impact Factor- 4.525)
Ashish Kumar Thokchom, Q. Zhou, D.J. Kim, D. Ha and T. Kim. Characterizing self-assembly and deposition behavior of nanoparticles in inkjet-printed evaporating droplets. Sensors and Actuators B: Chemical 2017, 252, 1063–1070. (Impact Factor-6.393)
D.J. Kim, D. Ha, Q. Zhou, Ashish Kumar Thokchom, J. Lim, J. Lee and T. Kim. Cracking-assisted Micro-/Nanofluidic Fabrication Platform for Silver Nanobelt Arrays and Nanosensors. Nanoscale 2017, 9, 9622-9630. (Impact Factor- 6.97)
Q. Zhou, Ashish Kumar Thokchom, D.J. Kim and T. Kim. Inkjet-printed Ag Micro-/Nanostructures on Cu foil for In-situ Preconcentration and Surface Enhanced Raman Scattering. Sensors and Actuators: B-Chemicals 2017, 243, 176–183. (Impact Factor- 6.393)
Ashish Kumar Thokchom, S.K. Majumder and A. Singh. Internal fluid motion and particle transport in externally heated sessile droplets. AIChE, 2016, 62, 1308-1321. (Impact Factor- 3.463)
Ashish Kumar Thokchom, R. Swaminathan, and A. Singh. Fluid flow and particle dynamics inside an evaporating droplet containing live bacteria displaying chemotaxis. Langmuir 2014, 30, 12144–12153. (Impact Factor-3.683)
Ashish Kumar Thokchom, A. Gupta, P.J. Jaijus and A. Singh. Analysis of fluid flow and particle transport in evaporating droplets exposed to infrared heating. International Journal of Heat and Mass transfer 2014, 68, 67-77. (Impact Factor- 4.346)
Ashish Kumar Thokchom, B. M. Joyti, S. K. Majumder and A. Singh. Fluid flow and particle dynamic inside the evaporating droplet placed. (to be submitted soon).
Ashish Kumar Thokchom. Covert-overt transformation of Photonic Crystal based Structural Colors. (under preparation)
Peer-reviewed conference proceedings
Ashish Kumar Thokchom, Q. Zhou, J. Park, D. Ha and T. Kim. Visualization of microfluid mlow in evaporating droplets for self-assembly control of nanoparticles. Journal of the Visual Information Society of Korea 2017, 75-76.
Ashish Kumar Thokchom, J. Park, Q. Zhou, D. Ha, J. Park, K. Lee, and T. Kim. Permanent encapsulation of nanoparticle patterns formed by inkjet printer for transparent and flexible anti-counterfeit applications. Transducers June 18-22, 2017, Kaoshuing, Taiwan.
Q. Zhou, Ashish Kumar Thokchom, D.J. Kim, and T. Kim. Inkjet-printed Ag Micro-/Nanostructure Clusters on Cu Substrates for In-situ Pre-concentration and Surface-Enhanced Raman Scattering. Transducers June 18-22, 2017, Kaoshuing, Taiwan
H.K. Chang, Ashish Kumar Thokchom, T. Kim and J. Park Nanoscale easy tear process for ultra-fast responsive colloidal crystal-pdms composite VOCS sensors. Transducers June 18-22, 2017, Kaoshuing, Taiwan.
Ashish Kumar Thokchom and A. Singh. Microflow and particle transport in sessile evaporating droplet on curved surface. MicroTAS 2016, Gyeongju, South Korea.
Ashish Kumar Thokchom, A. Gupta and A. Singh, Dynamics of particle deposition in a heated evaporating droplet containing solute particles. International Conference on Multiphase 26-31 May 2013, Jeju, South Korea.
B. J. Medhi, Ashish Kumar Thokchom, S. Mahapatra and A. Singh. Dynamics of Free surface flow of non-colloidal suspension in stepped channel. International Conference on Multiphase Flow 26-31 May 2013, Jeju, South Korea