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]
Tawfique Hasan | |
---|---|
Born | |
Alma mater | Islamic University of Technology University of New South Wales University of Cambridge |
Scientific career | |
Fields | 2D materials Nanowires Porous materials Printed electronics Sensors[1] |
Institutions | University of Cambridge |
Thesis | Carbon nanomaterials for ultrafast photonics (2009) |
Website | www |
Early life and education
editHasan was born in Bangladesh. He attended the Islamic University of Technology, where he majored in electronic engineering.[citation needed] After completing his undergraduate degree, Hasan moved to Australia, where he joined the University of New South Wales as a Master's student in microelectronics. His Master of Engineering dissertation investigated CMOS processing.[4] He moved to the University of Cambridge for his 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
editHasan 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.[9] The company developed a scalable approach to producing graphene-based inks that are aqueous and non-toxic.[9] He is particularly interested in roll-to-roll printing of graphene based electronic devices. He worked with Novalia, a technology company in Cambridge, to print water-based graphene inks at high speed (100 m/min).[10][11] Hasan suspended tiny graphene particles of graphene in a solvent mixture that was incorporated into water-based inks. The graphene-based inks are quick to dry, stick to substrates well, and are waterproof.[10] He demonstrated that it was also possible to print 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
Selected publications
edit- F. Bonaccorso; Z. Sun; T. Hasan; A. C. Ferrari (31 August 2010). "Graphene photonics and optoelectronics". Nature Photonics. 4 (9): 611–622. arXiv:1006.4854. doi:10.1038/NPHOTON.2010.186. ISSN 1749-4885. Wikidata Q29041443.
- Zhipei Sun; Tawfique Hasan; Felice Torrisi; et al. (23 February 2010). "Graphene Mode-Locked Ultrafast Laser". ACS Nano. 4 (2): 803–810. arXiv:0909.0457. doi:10.1021/NN901703E. ISSN 1936-0851. PMID 20099874. Wikidata Q29304077.
- Felice Torrisi; Tawfique Hasan; Weiping Wu; et al. (26 March 2012). "Inkjet-Printed Graphene Electronics". ACS Nano. 6 (4): 2992–3006. doi:10.1021/NN2044609. ISSN 1936-0851. PMID 22449258. Wikidata Q57424668.
References
edit- ^ a b Tawfique Hasan publications indexed by Google Scholar
- ^ Tawfique Hasan publications from Europe PubMed Central
- ^ www
.nanoengineering .eng .cam .ac .uk - ^ Hasan, Tawfique (2005). A 5V charge pump in a standard 1.8V 0.18um CMOS process. trove.nla.gov.au (ME thesis). University of New South Wales. OCLC 226250915.
- ^ Hasan, Tawfique (2009). Carbon nanomaterials for ultrafast photonics. cam.ac.uk (PhD thesis). University of Cambridge. EThOS 603832.
- ^ a b Hasan, Tawfique; Sun, Zhipei; Wang, Fengqiu; Bonaccorso, Francesco; Tan, Ping Heng; Rozhin, Aleksey G.; Ferrari, Andrea C. (2009). "Nanotube–Polymer Composites for Ultrafast Photonics". Advanced Materials. 21 (38–39): 3874–3899. doi:10.1002/adma.200901122. ISSN 1521-4095. S2CID 36587931.
- ^ Hasan, Dr Tawfique (2013-01-28). "Dr Tawfique Hasan". graphene.cam.ac.uk. Retrieved 2021-11-23.
- ^ "People – Churchill College". chu.cam.ac.uk. Retrieved 2021-11-23.
- ^ a b "Cambridge Graphene". cambridgegraphene.com. Retrieved 2021-11-23.
- ^ 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.
- ^ Cambridge, University of. "New graphene-based inks for high-speed manufacturing of printed electronics". phys.org. Retrieved 2021-11-23.
- ^ Cambridge, University of. "Breakthrough ink discovery could transform the production of new laser and optoelectronic devices". phys.org. Retrieved 2021-11-23.
- ^ "Black Phosphorus Ink Compatible with Inkjet Printers Developed". designnews.com. 2017-11-20. Retrieved 2021-11-23.
- ^ a b c d "Alcohol beats the coffee ring effect". cosmosmagazine.com. Retrieved 2021-11-23.
- ^ Ouellette, Jennifer (2020-08-12). "Adding a dash of alcohol suppresses coffee ring effect in 2D printing inks". arstechnica.com. Retrieved 2021-11-23.
- ^ Extance, Andy (2019). "Nanowires become smallest-ever spectrometers". chemistryworld.com. Chemistry World. Retrieved 2021-11-23.
- ^ "Chemists build the tiniest spectrometer from a single nanowire". acs.org. Retrieved 2021-11-23.
- ^ "Single-nanowires make powerful spectrometers". physicsworld.com. Physics World. 2019-09-24. Retrieved 2021-11-23.
- ^ Yang, Zongyin; Albrow-Owen, Tom; Cui, Hanxiao; Alexander-Webber, Jack; Gu, Fuxing; Wang, Xiaomu; Wu, Tien-Chun; Zhuge, Minghua; Williams, Calum; Wang, Pan; Zayats, Anatoly V. (2019). "Single-nanowire spectrometers". Science. 365 (6457): 1017–1020. doi:10.1126/science.aax8814. PMID 31488686. S2CID 201845940.
- ^ "Nanowires replace Newton's famous glass prism". techexplorist.com. 2019-09-06. Retrieved 2021-11-23.