BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Nanomechanics of materials used in flexible electronics -  Dr Deep
 ak Venkateshvaran  Cavendish Laboratory\, University of Cambridge
DTSTART:20221130T140000Z
DTEND:20221130T150000Z
UID:TALK193169@talks.cam.ac.uk
CONTACT:Dr Mark Leadbeater
DESCRIPTION:!https://www.cape.eng.cam.ac.uk/sites/www.cape.eng.cam.ac.uk/f
 iles/styles/leading/public/venkateshvaran_20221130.png?itok=Clt5L1V_!<br>\
 n*Abstract*<br>\nOrganic semiconductors are multifunctional soft electroni
 c materials that play an impactful role in the flexible electronics indust
 ry. Their use spans printed electronic circuits\, large area displays\, fl
 exible solar energy harvesters\, and implantable bioelectronics. For their
  competitive optical\, electronic\, thermoelectric\, and spin-based proper
 ties\, these soft electronic materials continue to attract significant aca
 demic engagement\, seeding new technologies for the future. [1\, 2\, 3] Al
 though macroscopic flexibility on the centimetre to metre scale has been a
  unique selling point for organic semiconductor technology\, not much is k
 nown about their mechanical properties on the nanoscale. Quantification of
  these nanomechanical properties together with demonstrations of nanoscale
  stiffness tunability and nanoscale homogenisation hold significant potent
 ial for both fundamental and applied science. [4\, 5]\n\nDuring the last d
 ecade\, the development of high precision atomic force microscopes has mad
 e it possible to quantify the mechanical properties of organic polymers on
  the scale of a few polymer chains. In addition\, techniques such as highe
 r eigen mode imaging make it possible to visualise molecular ordering on t
 he nanoscale under ambient conditions with relative ease. These techniques
  allow one to draw a correlation between molecular ordering and the stiffn
 ess that such ordering manifests.\n\nIn this talk\, the science and techno
 logy of precision nanoscale measurement of mechanics will be spotlight. Th
 e interrelation between molecular organisation and nanomechanical properti
 es in high-performance polymers used for organic electronics will be shown
 . [6\, 7] A quantification of differences in strain within organic nanocry
 stal polymorphs will also be demonstrated. The measurement techniques demo
 nstrated in this talk are extendable to a wide variety of multifunctional 
 materials with a broad range of elastic properties and have significant us
 e in both academia and industry.\n\n*About the speaker*\n\nDr Deepak Venka
 teshvaran is a Royal Society University Research Fellow at the Cavendish L
 aboratory of the University of Cambridge. He conducts research on organic 
 semiconductor nanomechanics\, the fabrication and characterisation of micr
 o/nanoscale devices\, and the development of novel measurement techniques.
  Deepak is also a Fellow and Director of Studies in Physics at Selwyn Coll
 ege in Cambridge.\n!https://www.cape.eng.cam.ac.uk/files/styles/inline/pub
 lic/media/deepak.jpg?itok=-GPv6--p!<br>\n_References_</br>\n[1] D. Venkate
 shvaran\, M. Nikolka et al.\, Nature 515\, 384–388 (2014) https://www.na
 ture.com/articles/nature13854\n\n[2] S. J. Wang\, D. Venkateshvaran et al.
 \, Nature Electronics 2\, 98–107 (2019) https://www.nature.com/articles/
 s41928-019-0222-5\n\n[3] P. Skalski\, O. Zadvorna et al.\, Physical Review
  Materials 6\, 024601 (2021) https://journals.aps.org/prmaterials/abstract
 /10.1103/PhysRevMaterials.6.024601\n\n[4] L. Ouyang\, C.-c. Kuo et al.\, J
 . Mater. Chem. B 3\, 5010 (2015) https://pubs.rsc.org/en/content/articlela
 nding/2015/TB/C5TB00053J\n\n[5] C. D. Gerardo et al.\, Microsystems and Na
 noengineering 4\, 19 (2018)  https://www.nature.com/articles/s41378-018-00
 22-5\n\n[6] V. Panchal\, I. Dobryden … D. Venkateshvaran\, Advanced Elec
 tronic Materials 8\, 2101019 (2022) https://onlinelibrary.wiley.com/doi/10
 .1002/aelm.202101019\n\n[7] I. Dobryden\, V. V. Korolkov … D. Venkateshv
 aran\, Nature Communications 13\, 3076 (2022) https://www.nature.com/artic
 les/s41467-022-30801-x
LOCATION:EEDB Seminar Room\, Electrical Engineering and Online (registrati
 on required)
END:VEVENT
END:VCALENDAR