Overview

My Research

I am an experimental physicist specialising in studies of electrical conduction in nanostructures. Since 2006, my research has focused on charge carrier scattering processes in graphene. These processes are investigated through measurements of quantum interference effects such as universal conductance fluctuations and the weak localisation correction to the classical conductance.

My group was the first to experimentally distinguish the two elastic scattering mechanisms in monolayer [Phys. Rev. Lett. 100, 056802 (2008)] and bilayer [Phys. Rev. Lett. 98, 176805 (2007)] graphene responsible for the unusual quantum interference of its charge carriers. We also demonstrated how conductance fluctuations can be used for carrier thermometry [Phys. Rev. Lett. 102, 066801 (2009)], and the origin of the unexpectedly short spin lifetime in graphene [Phys. Rev. B 86, 045436 (2012)]. The former is important for graphene-based devices as we have shown that electrons are easily overheated when driven through the crystal [Phys. Rev. B 83, 121404(R) (2011); Phys. Rev. B 85, 161411(R) (2012)]; the latter has implications for spintronic applications.

My group has worked on the electrical sensitivity to binding of chemicals to the surface of graphene, including toluene and other aromatic molecules [Carbon 49, 3829 (2011); Tetrahedron 71, 6776 (2015)], water [Phys. Rev. B 85, 075435 (2012)] and oxygen [Phys. Rev. B 90, 081401 (2014)]. We have also investigated ways to scale up graphene production, including direct binding on metals from solution [PCCP 18, 5086 (2016)]. Recently, we have been working on controllable sound generation and mixing in graphene [Sci. Rep. 7, 1363 (2017)], which includes possible new routes to explore graphene's electrical sensitivity to its environment.

Although our work is predominantly fundamental in nature, it has direct links to applications such as biosensing. This has resulted in collaborations with several industrial partners. To date, our work has led to three UK patents.

I am a member of the Quantum Systems and Nanomaterials Group. For further information about my research, please visit Horsell lab.

My Teaching

I teach both on the Physics and Natural Sciences degree programmes.

• PHY1021: Vector Mechanics
• NSC1004: Experimental Science (Physics Laboratories)
• NSC2001: Frontiers in Science 2

I also run several Natural Sciences and Physics Masters level project in my laboratories each year.

Education and Employment

• 2014 -        Senior Lecturer, University of Exeter
• 2009 - 2014 Lecturer in Physics, University of Exeter
• 2004 - 2009 Research Fellow, University of Exeter
• 2000 - 2004 PhD in Physics, University of Exeter
• 1996 - 2000 MPhys in Physics, University of Exeter

Externally Funded Research Projects

• 'Novel Hull coating to Reduce Friction and Fouling', TSB, £104k, 1/11/2013-30/4/2015 (PI)
• 'New manufacturable approaches to the deposition and patterning of graphene materials', EPSRC, £1.13M, 1/1/2013-31/12/2015 (CI)
• 'The effects of interactions at the graphene-liquid interface', Royal Society Research Grant 2011R2, £14k, 1/4/2012-31/3/2013 (PI)

Invited Presentations

• UK-Japan Graphene Workshop 2011, Lancaster
• NorPRINS Workshop 2010, Oslo
• GK Workshop 2008, Regensburg

Contributions to the Community

• Member of IoP South West Committee (2012-2014)

Outreach

• Academic Organiser of PUPC
• General public lectures (Bath GULP, IoP Merseyside Branch, Portsmouth and District Physical Society)
• Low temperature physics talks and demonstrations for National Science Week (2011-2013)

Memberships

• Fellow of the Royal Microscopical Society

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Publications

_{Copyright Notice: Any articles made available for download are for personal use only. Any other use requires prior permission of the author and the copyright holder.}

| 2022 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 |

2022

• Tatnell DM, Heath MS, Hibbins AP, Horsell DW. (2022) A thermophone-based bridge circuit for the measurement of electrical and thermal properties of thin films, Journal of Physics D: Applied Physics, volume 55, no. 35, pages 35LT01-35LT01, DOI:10.1088/1361-6463/ac782f. [PDF]

2020

• Tatnell DM, Heath MS, Hepplestone SP, Hibbins AP, Hornett SM, Horsley SAR, Horsell DW. (2020) Coupling and confinement of current in thermoacoustic phased arrays, Sci Adv, volume 6, no. 27, DOI:10.1126/sciadv.abb2752. [PDF]
• Tatnell DM, Heath MS, Hepplestone SP, Hibbins AP, Hornett SM, Horsley SAR, Horsell DW. (2020) Coupling and confinement of current in thermoacoustic phased arrays, Science Advances, volume 6, no. 27, DOI:10.1126/sciadv.abb2752. [PDF]

2019

• Sassmann S, Rodrigues C, Hembrow J, Richards D, Horsell DW, Deeks MJ. (2019) Immune-responsive feedback between the cytoskeleton and plasma membrane, MOLECULAR PLANT-MICROBE INTERACTIONS, volume 32, no. 10, pages 130-130. [PDF]
• Livesey JS, Constable C, Rawlinson WG, Robotham AM, Wright C, Hampshire AE, Klark EG, Borrows WA, Horsell D, Cresswell JE. (2019) The power and efficiency of brood incubation in queenless microcolonies of bumble bees (Bombus terrestris L.), Ecological Entomology, volume 44, no. 5, pages 601-609, DOI:10.1111/een.12736.
• Tabish TA, Pranjol MZI, Horsell D, Rahat A, Whatmore JL, Winyard PG, Zhang S. (2019) Graphene Oxide-Based Targeting of Extracellular Cathepsin D and Cathepsin L As A Novel Anti-Metastatic Enzyme Cancer Therapy, Cancers, volume 3, pages 1-20, DOI:10.3390/cancers11030319.

2018

• Tabish TA, Lin L, Ali M, Jabeen F, Ali M, Iqbal R, Horsell DW, Winyard PG, Zhang S. (2018) Investigating the bioavailability of graphene quantum dots in lung tissues via Fourier transform infrared spectroscopy, Interface Focus, volume 8, pages 1-5, DOI:10.1098/rsfs.2017.0054.
• Tabish TA, Memon F, Gomez D, Horsell D, Zhang S. (2018) A facile synthesis of porous graphene for efficient water and wastewater treatment, Scientific Reports, volume 8, DOI:10.1038/s41598-018-19978-8.
• Tabish TA, Pranjol Z, Karadag I, Horsell D, Whatmore J, Zhang S. (2018) Influence of luminescent graphene quantum dots on trypsin activity, International Journal of Nanomedicine, volume 13, pages 1-14, DOI:10.2147/IJN.S155021.

2017

• Lin L, Miao N, Huang J, Zhang S, Zhu Y, Horsell DD, Ghosez P, Sun Z, Allwood DA. (2017) A photocatalyst of sulphur depleted monolayered molybdenum sulfide nanocrystals for dye degradation and hydrogen evolution reaction, Nano Energy, volume 38, pages 544-552, DOI:10.1016/j.nanoen.2017.06.008.
• Heath MS, Horsell DW. (2017) Multi-frequency sound production and mixing in graphene, Scientific Reports, volume 7, no. 1, article no. 1363, DOI:10.1038/s41598-017-01467-z. [PDF]

2016

• Lin L, Wu H, Green SJ, Crompton J, Zhang S, Horsell DW. (2016) Formation of tunable graphene oxide coating with high adhesion, Physical chemistry chemical physics : PCCP, volume 18, article no. 5086, DOI:10.1039/C5CP06906H.

2015

• Perry A, Green SJ, Horsell DW, Homett SM, Wood ME. (2015) A pyrene-appended spiropyran for selective photo-switchable binding of Zn(II): UV-visible and fluorescence spectroscopy studies of binding and non-covalent attachment to graphene, graphene oxide and carbon nanotubes, TETRAHEDRON, volume 71, no. 38, pages 6776-6783, DOI:10.1016/j.tet.2015.07.035. [PDF]

2014

• El-Bana MS, Wolverson D, Horsell DW, Bending SJ. (2014) Localization and field-periodic conductance fluctuations in trilayer graphene, Semiconductor Science and Technology, volume 29, no. 11, DOI:10.1088/0268-1242/29/11/115010.
• Hornett SM, Heath M, Horsell DW, Hendry E. (2014) Optically induced oxygen desorption from graphene measured using femtosecond two-pulse correlation, Physical Review B - Condensed Matter and Materials Physics, volume 90, no. 8, DOI:10.1103/PhysRevB.90.081401.

2013

• Pan G, Li B, Heath M, Horsell D, Wears ML, Al Taan L, Awan S. (2013) Transfer-free growth of graphene on SiO2 insulator substrate from sputtered carbon and nickel films, Carbon, volume 65, pages 349-358, DOI:10.1016/j.carbon.2013.08.036.
• Pan G, Li B, Heath M, Horsell D, Wears ML, Al Taan L, Awan S. (2013) Transfer-free growth of graphene on SiO2 insulator substrate from sputtered carbon and nickel films, Carbon.

2012

• Pan G, Heath M, Horsell D, Wears ML. (2012) Growth of large area graphene from sputtered films, DOI:10.48550/arxiv.1209.0489.
• Price AS, Hornett SM, Shytov AV, Hendry E, Horsell DW. (2012) Non-linear resistivity and heat dissipation in monolayer graphene, DOI:10.48550/arxiv.1202.3394.
• Hornett SM, Price AS, Shytov AV, Hendry E, Horsell DW. (2012) Transport measurements of heat dissipation in supported monolayer graphene, 2012 12TH IEEE CONFERENCE ON NANOTECHNOLOGY (IEEE-NANO). [PDF]
• Price AS, Hornett SM, Shytov AV, Hendry E, Horsell DW. (2012) Nonlinear resistivity and heat dissipation in monolayer graphene, Physical Review B - Condensed Matter and Materials Physics, volume 85, no. 16, DOI:10.1103/PhysRevB.85.161411.
• Kaverzin AA, Mayorov AS, Shytov A, Horsell DW. (2012) Impurities as a source of 1/f noise in graphene, Physical Review B - Condensed Matter and Materials Physics, volume 85, no. 7, DOI:10.1103/PhysRevB.85.075435.

2011

• Kaverzin AA, Mayorov AS, Shytov A, Horsell DW. (2011) Impurities as a source of flicker noise in graphene, DOI:10.48550/arxiv.1107.3488.
• Kozikov AA, Horsell DW, McCann E, Fal'ko VI. (2011) Evidence for spin memory in the electron phase coherence in graphene, DOI:10.48550/arxiv.1108.2067.
• Kaverzin AA, Strawbridge SM, Price AS, Withers F, Savchenko AK, Horsell DW. (2011) Electrochemical doping of graphene with toluene, CARBON, volume 49, no. 12, pages 3829-3834, DOI:10.1016/j.carbon.2011.05.017. [PDF]
• Kozikov AA, Horsell DW, McCann E, Fal'ko VI. (2011) Evidence for spin memory in the electron phase coherence in graphene, Phys. Rev. B 86, 045436 (2012), DOI:10.1103/PhysRevB.86.045436. [PDF]
• Hale PJ, Hornett SM, Moger J, Horsell DW, Hendry E. (2011) Hot phonon decay in supported and suspended exfoliated graphene, Physical Review B - Condensed Matter and Materials Physics, volume 83, no. 12, DOI:10.1103/PhysRevB.83.121404.

2010

• Kaverzin AA, Strawbridge SM, Price AS, Withers F, Savchenko AK, Horsell DW. (2010) Electrochemical doping of graphene, DOI:10.48550/arxiv.1010.4763.
• Hale PJ, Hornett SM, Moger J, Horsell DW, Hendry E. (2010) Hot phonon decay in supported and suspended exfoliated graphene, DOI:10.48550/arxiv.1012.3927.

2009

• Horsell DW, Savchenko AK, Tikhonenko FV, Kechedzhi K, Lerner IV, Fal'ko VI. (2009) Mesoscopic conductance fluctuations in graphene, DOI:10.48550/arxiv.0902.0904.
• Kechedzhi K, Horsell DW, Tikhonenko FV, Savchenko AK, Gorbachev RV, Lerner IV, Fal'ko VI. (2009) Quantum transport thermometry for electrons in graphene, Phys Rev Lett, volume 102, no. 6, DOI:10.1103/PhysRevLett.102.066801. [PDF]
• Horsell DW, Savchenko AK, Tikhonenko FV, Kechedzhi K, Lerner IV, Fal'ko VI. (2009) Mesoscopic conductance fluctuations in graphene, Solid State Communications, volume 149, no. 27-28, pages 1041-1045, DOI:10.1016/j.ssc.2009.02.058.

2008

• Gorbachev RV, Mayorov AS, Savchenko AK, Horsell DW, Guinea F. (2008) Conductance of p-n-p graphene structures with 'air-bridge' top gates, DOI:10.48550/arxiv.0804.2081.
• Kechedzhi K, Horsell DW, Tikhonenko FV, Savchenko AK, Gorbachev RV, Lerner IV, Fal'ko VI. (2008) Quantum transport thermometry for electrons in graphene, DOI:10.48550/arxiv.0808.3211.
• Tikhonenko FV, Horsell DW, Wilkinson B, Gorbachev RV, Savchenko AK. (2008) The effect of inter-valley scattering on weak localisation in graphene, Physica E: Low-Dimensional Systems and Nanostructures, volume 40, no. 5, pages 1364-1366, DOI:10.1016/j.physe.2007.09.010.
• Tikhonenko FV, Horsell DW, Gorbachev RV, Savchenko AK. (2008) Weak localization in graphene flakes, Phys Rev Lett, volume 100, no. 5, DOI:10.1103/PhysRevLett.100.056802. [PDF]
• Horsell DW, Tikhonenko FV, Gorbachev RV, Savchenko AK. (2008) Weak localization in monolayer and bilayer graphene, England, Philos Trans A Math Phys Eng Sci, volume 366, no. 1863, pages 245-250, DOI:10.1098/rsta.2007.2159. [PDF]
• Gorbachev RV, Mayorov AS, Savchenko AK, Horsell DW, Guinea F. (2008) Conductance of p-n-p graphene structures with "air-bridge" top gates, Nano Lett, volume 8, no. 7, pages 1995-1999, DOI:10.1021/nl801059v. [PDF]

2007

• Gorbachev RV, Tikhonenko FV, Mayorov AS, Horsell DW, Savchenko AK. (2007) Quantum interference in bilayer graphene, DOI:10.48550/arxiv.0708.1700.
• Tikhonenko FV, Horsell DW, Gorbachev RV, Savchenko AK. (2007) Weak localisation in graphene flakes, DOI:10.48550/arxiv.0707.0140.
• Gorbachev RV, Tikhonenko FV, Mayorov AS, Horsell DW, Savchenko AK. (2007) Weak localisation in bilayer graphene, DOI:10.48550/arxiv.cond-mat/0701686.
• Horsell DW, Galaktionov EA, Savchenko AK, Kretinin AV, Ghosh A, Beere HE, Ritchie DA. (2007) Conductance fluctuations in a quantum wire with a non-uniform scattering potential, AIP Conference Proceedings, volume 893, pages 741-742, DOI:10.1063/1.2730103.
• Gorbachev RV, Tikhonenko FV, Mayorov AS, Horsell DW, Savchenko AK. (2007) Weak localisation in bilayer graphene, Phys. Rev. Lett, volume 98. [PDF]
• Gorbachev RV, Tikhonenko FV, Mayorov AS, Horsell DW, Savchenko AK. (2007) Weak localization in bilayer graphene, Phys Rev Lett, volume 98, no. 17, DOI:10.1103/PhysRevLett.98.176805. [PDF]

2006

• Horsell DW, Savchenko AK, Kretinin AV, Ghosh A, Beere HE, Ritchie DA. (2006) Effect of a mixed scattering potential on the conductance fluctuations of a quasi-ballistic wire, Physica E: Low-Dimensional Systems and Nanostructures, volume 34, no. 1-2, pages 580-583, DOI:10.1016/j.physe.2006.03.035.
• Horsell DW, Galaktionov EA, Savchenko AK, Kretinin AV, Ghosh A, Beere HE, Ritchie DA. (2006) The effect of a non-uniform scattering potential on conductance fluctuations in a quantum wire, Physica Status Solidi C: Conferences, volume 3, no. 2, pages 325-328, DOI:10.1002/pssc.200562747.

2005

• Horsell DW, Savchenko AK, Galperin YM, Kozub VI, Vinokur VM. (2005) Phonon-electric effect in nano-scale transistors, Physica Status Solidi C: Conferences, volume 2, no. 8, pages 3047-3050, DOI:10.1002/pssc.200460723.
• Horsell DW, Savchenko AK, Galperin YM, Kozub VI, Vonokur VM, Ritchie DA. (2005) Spontaneous current generation in gated nanostructures, Europhysics Letters, volume 71, no. 4, pages 658-664, DOI:10.1209/epl/i2005-10115-2.
• Horsell DW, Savchenko AK, Galperin YM, Kozub VI, Vinokur VM. (2005) Mesoscopic phonon-electric effect, AIP Conference Proceedings, volume 772, pages 1281-1282, DOI:10.1063/1.1994579.

2004

• Horsell DW, Savchenko AK, Galperin YM, Kozub VI, Vinokur VM, Ritchie DA. (2004) Spontaneous current generation in gated nanostructures, DOI:10.48550/arxiv.cond-mat/0411606.

2003

• Baturina TI, Horsell DW, Islamov DR, Drebushchak IV, Tsaplin YA, Babenko AA, Kvon ZD, Savchenko AK, Plotnikov AE. (2003) Josephson junction arrays on the basis of superconducting PtSi films, Physica B: Condensed Matter, volume 329-333, no. II, pages 1496-1497, DOI:10.1016/S0921-4526(02)02631-5.

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