Tawfique Hasan

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Tawfique Hasan
Born
Sensors[1]
InstitutionsUniversity of Cambridge
ThesisCarbon nanomaterials for ultrafast photonics (2009)
Websitewww.nanoengineering.eng.cam.ac.uk Edit this at Wikidata

Tawfique Hasan is a Bangladeshi scientist who is Professor of Nanomaterials at the University of Cambridge.[1][2] He leads the nanoengineering group in the Cambridge graphene centre and serves as deputy head of division B (electrical engineering) in the Department of Engineering, University of Cambridge.[3]

Early life and education

Hasan was born in

PhD, where he worked on carbon nanomaterials for ultrafast photonic devices.[5][6] Hasan was particularly interested in polymer composites, which can be used as saturable absorbers for optical switches and optical amplifier noise suppressors.[6]

Research and career

Hasan joined King's College, Cambridge as a junior research fellow. He was awarded a Royal Academy of Engineering research fellowship to work on graphene-based processable electronic devices. He is particularly interested in computation-enabled smart devices. He was made a University Lecturer and Title A Fellow at Churchill College, Cambridge in 2013.[7][8]

Whilst at the University of Cambridge, Hasan was a founder of Cambridge Graphene Limited.

black phosphorus-based inks using the same approach.[12][13]

The coffee ring effect, a phenomenon of fluid mechanics, can have a detrimental impact on printed electronic devices.[14] The effect occurs because liquid evaporates rapidly at the edges of a droplet, causing particles within the droplets to accumulate and an uneven surface to form.[14] Hasan studied the formation of these coffee rings using high-speed photography.[14] He showed that by combining isopropyl alcohol and 2-butanol it was possible to better distribute the ink particles, creating thin films of uniform thickness.[14][15]

In 2019, Hasan developed the world's smallest spectrometers (approx. 100 μm long), that he showed could be used to image onion cells.[16] The spectrometers were made from semiconductor-based nanowires.[17] The composition of the nanowire (semiconductor) is gradually changed from one end of the nanowire to another, which altered the optical properties (and band gaps) along the length of the nanowires.[18][19][20]

Selected publications

  • F. Bonaccorso; Z. Sun; T. Hasan; A. C. Ferrari (31 August 2010). "Graphene photonics and optoelectronics".
    Wikidata Q29041443
    .
  • Zhipei Sun; Tawfique Hasan; Felice Torrisi; et al. (23 February 2010). "Graphene Mode-Locked Ultrafast Laser".
    Wikidata Q29304077
    .
  • Felice Torrisi; Tawfique Hasan; Weiping Wu; et al. (26 March 2012). "Inkjet-Printed Graphene Electronics".
    Wikidata Q57424668
    .

References

  1. ^ a b Tawfique Hasan publications indexed by Google Scholar Edit this at Wikidata
  2. ^ Tawfique Hasan publications from Europe PubMed Central
  3. ^ www.nanoengineering.eng.cam.ac.uk Edit this at Wikidata
  4. OCLC 226250915
    .
  5. EThOS 603832
    .
  6. ^
    S2CID 36587931
    .
  7. ^ Hasan, Dr Tawfique (2013-01-28). "Dr Tawfique Hasan". graphene.cam.ac.uk. Retrieved 2021-11-23.
  8. ^ "People – Churchill College". chu.cam.ac.uk. Retrieved 2021-11-23.
  9. ^ a b "Cambridge Graphene". cambridgegraphene.com. Retrieved 2021-11-23.
  10. ^ a b "New graphene based inks for high-speed manufacturing of printed electronics". cam.ac.uk. University of Cambridge. 2015-10-19. Retrieved 2021-11-23.
  11. ^ Cambridge, University of. "New graphene-based inks for high-speed manufacturing of printed electronics". phys.org. Retrieved 2021-11-23.
  12. ^ Cambridge, University of. "Breakthrough ink discovery could transform the production of new laser and optoelectronic devices". phys.org. Retrieved 2021-11-23.
  13. ^ "Black Phosphorus Ink Compatible with Inkjet Printers Developed". designnews.com. 2017-11-20. Retrieved 2021-11-23.
  14. ^ a b c d "Alcohol beats the coffee ring effect". cosmosmagazine.com. Retrieved 2021-11-23.
  15. ^ Ouellette, Jennifer (2020-08-12). "Adding a dash of alcohol suppresses coffee ring effect in 2D printing inks". arstechnica.com. Retrieved 2021-11-23.
  16. ^ Extance, Andy (2019). "Nanowires become smallest-ever spectrometers". chemistryworld.com. Chemistry World. Retrieved 2021-11-23.
  17. ^ "Chemists build the tiniest spectrometer from a single nanowire". acs.org. Retrieved 2021-11-23.
  18. ^ "Single-nanowires make powerful spectrometers". physicsworld.com. Physics World. 2019-09-24. Retrieved 2021-11-23.
  19. S2CID 201845940
    .
  20. ^ "Nanowires replace Newton's famous glass prism". techexplorist.com. 2019-09-06. Retrieved 2021-11-23.
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