Prof Monica Craciun
Professor in Nanoscience and Nanotechnology
Telephone: 01392 723656
Extension: (Streatham) 3656
Prof Monica Craciun joined the University of Exeter in January 2010 as research fellow and took up the position of Professor in Nanoscience and Nanotechnology in April 2017. She currently holds a 5-year EPSRC early career fellowship, one of the 10 Engineering Fellowships for Growth awarded to leading UK academics to maintain UK’s leadership in 3 Great British Technologies (identified as Advanced Materials, Robotic and Autonomous Systems, and Synthetic Biology). Prof Craciun is/was investigator on more than 30 EPSRC, Royal Society, Innovate UK, EU and industrial research grants with a total funding of over £9.25million. At Exeter she is full-time staff of the Centre for Graphene Science and of the Nano Engineering Science and Technology Group. Prof Craciun gained a PhD in Applied Physics from Delft University of Technology (The Netherlands), an MSc in Materials Physics (Joseph Fourier University, Grenobe, France), an MSc in Applied Physics (University of Bucharest, Romania) and an MSc in Materials Engineering (Catholic University Leuven, Belgium). Before joining Exeter she was postdoctoral researcher at the University of Twente (The Netherlands) and at the University of Tokyo were she was awarded a prestigious fellowship of the Japanese Society for the Promotion of Science.
Her expertise lies in the studies of two dimensional materials (such as graphene, functionalized graphene and layered dichalcogenides) and of organic materials, as well as their use in future emerging electronic and optoelectronic applications. Currently she leads a group of 30 researchers focusing on emerging technologies such as highly efficient solar cells and light emitting devices, electronic textiles, smart windows and multifunctional smart coatings. She has a strong track record of interdisciplinary research with output in the fields of nanoscience and nanotechnology, materials science, physics and chemistry. Her research is regularly published in leading and high-impact peer reviewed journals such as Science Advances, Nature Nanotechnology, Advanced Materials, Nano Letters, Journal of the American Chemical Society, Proceedings of the National Academy of Sciences of USA (PNAS), Physical Review Letters, Nano Today, etc.. She has published over 90 papers, which have attracted an h-index of 25.Membership of editorial boards
- Editor for the Nature journal Scientific Reports (Electronics, Photonics and Device Physics)
- Section Editor for the Springer journal Nanoscale Research Letters Advances
The work of Prof Craciun spans from fundamental research in nanoscience (molecular electronics, quantum phenomena, nano electronics, spintronics) to applied research in electronic and optoelectronic materials and devices.
Nanotechnology & Electronic and optoelectronic materials and devices. These are research directions which I pioneered at Exeter and include novel techniques to pattern electrical circuits in Fluorine- functionalised graphene, of use for whole-graphene electronics [Nano Lett. 11, 3912 (2011)], a method to tailor the band gap of fluorinated graphene by tuning the Fluorine coverage [Nanoscale Res. Lett. 6, 526, (2011) & New J. Phys. 15, 033024 (2013)]. I discovered the GraphExeter material (i.e. few-layer graphene intercalated with FeCl3), which is currently the best performing carbon-based transparent conductor [Adv. Mater. 24, 2844 (2012)], with resilience to extreme conditions [Nature Scientific Reports 5, 7609 (2015)], extensively reported by media such as BBC, Forbes and Reuters. Furthermore, my team demonstrated the potential of GraphExeter for flexible electronics [Nature Scientific Reports 5, 16464 (2015)], transparent photo-detectors [ACS Nano 7, 5052 (2013)], foldable light emitting devices [ACS Appl. Mater. Int. 8, 16541 (2016)], used GraphExeter to provide the first evidence for magnetic ordering in the extreme limit of two-dimensional systems [Nano Lett 14, 1755 (2014)] and developed novel ways to strain graphene [Nano Lett. 14, 1158 (2014) & Nano Lett. 15, 7943 (2015)]. My team also developed a new growth method for graphene which is 100 times faster and 99% lower cost than standard Chemical Vapor Deposition [Adv. Mater. 27, 4200 (2015)], and used this type of graphene for the creation of graphene-based electronic textiles [Nature Scientific Reports 5, 9866 (2015)]. The latest advances include the development of a model for the intelligent design of fast and highly efficient atomically thin opto-electronic devices [Adv. Mater. (2017)], a novel method to engineer photodetectors in GraphExeter for ultrathin, high-definition sensing and video imaging technologies [Science Advances (2017)], and demonstration of ultra-small, ultra-fast and flexible non-volatile graphene memories [ACS Nano (2017)].
Quantum Phenomena & Nano electronics. Main contributions include the first experimental demonstration of charge carriers propagation in monolayer graphene via evanescent waves [Phys. Rev. Lett. 100, 196802 (2008)] and the discovery that ABA-stacked trilayer graphene is the only gate-tuneable semimetal [Nature Nanotech. 4, 383 (2009)], opening the research area of few-layer graphene (FLG). In the area of FLG I also published the first experimental evidence that trilayer graphene has a unique stacking-dependent quantum Hall effect [Phys. Rev. B(R) 84, 161408 (2011)], the first studies of electrical transport in FLG with record high charge densities controlled by liquid ionic gating [PNAS 108, 13002 (2011)], and the first direct observation of the electric field tuneable energy gap in ABC-stacked trilayer graphene [Nano Lett. 15, 4429 (2015)]. The latest advances are the realisation of a highly efficient graphene Cooper pair splitter device for quantum information processing [Nature Sci. Rep. 2016], and revealing the mechanism of large distance supercurrent propagation through graphene-superconductor junctions [Nano Lett. 16, 4788 (2016)].
Molecular Electronics. Highlights include the discovery of a correlation between the electrical conduction of metal-phthalocyanine (MPc) materials and the molecular structure of their constituent molecules [J. Am. Chem. Soc. 127, 12210 (2005)] and the realisation of the first MPc ambipolar transistor [Appl. Phys. Lett. 86, 262109 (2005)]. This was followed by the first demonstration of high electrical conductivity in alkali-doped MPc [Adv. Mater. 18, 320 (2006)], which has opened up the field of metallic MPc. I also published the first experimental observation of an insulating state in pentacene induced by strong interactions between the conduction electrons [Phys. Rev. B 79, 125116 (2009)].Selected publications
- Jones GF, Pinto RM, De Sanctis A, Nagareddy KV, Wright DC, Alves H, Craciun MF, Russo S. (2017) Highly Efficient Rubrene–Graphene Charge-Transfer Interfaces as Phototransistors in the Visible Regime, Advanced Materials, article no. 1702993
- De Sanctis A, Jones GF, Wehenkel D, Bezares F, Koppens FHL, Craciun, Russo. (2017) Extraordinary linear dynamic range in laser-defined functionalized graphene photodetectors, Science Advances, volume 3, no. 5, article no. e1602617
- Mehew JD, Unal S, Torres Alonso E, Jones GF, Fadhil Ramadhan S, Craciun MF, Russo S. Fast and Highly Sensitive Ionic Polymer Gated WS2-Graphene Photodetectors, Advanced Materials, (2017)
- Bezares FJ, Sanctis AD, Saavedra JRM, Woessner A, Alonso-González P, Amenabar I, Chen J, Bointon TH, Dai S, Fogler MM. (2017) Intrinsic Plasmon-Phonon Interactions in Highly Doped Graphene: A Near-Field Imaging Study, Nano Letters, DOI:10.1021/acs.nanolett.7b01603
- Nagareddy KV, Barnes MD, Zipoli F, Lai KT, Alexeev AM, Craciun MF, Wright CD. Multilevel Ultra-Fast Flexible Nanoscale Non-Volatile Hybrid Graphene Oxide - Titanium Oxide Memories, ACS Nano (2017).
- Amit I, Octon TJ, Townsend NJ, Reale F, Wright CD, Mattevi C, Craciun MF, Russo S. Role of Charge Traps in the Performance of Atomically Thin Transistors, Advanced Materials, pages 1605598-1605598 (2017)
- Ke, Chung-Ting; Borzenets, Ivan; Draelos, Anne; Amet, Francois ; Bomze, Yuriy; Jones, Gareth; Craciun, Monica; Russo, Saverio; Yamamoto, Michihisa ; Tarucha, Seigo; Finkelstein, Gleb. Critical Current Scaling in Long Diffusive Graphene-Based Josephson Junctions. Nano Letters, volume 16 (8), pp 4788–4791 (2016)
- Alexeev A, Barnes MD, Nagareddy VK, Craciun MF, Wright CD. A simple process for the fabrication of large-area CVD graphene based devices via selective in situ functionalization and patterning, 2D Materials, volume 4, pages 011010-011010 (2016).
- Torres Alonso E, Karkera G, Jones GF, Craciun MF, Russo S. (2016) Homogeneously Bright, Flexible, and Foldable Lighting Devices with Functionalized Graphene Electrodes, ACS Appl Mater Interfaces, volume 8, no. 26, pages 16541-16545, DOI:10.1021/acsami.6b04042
- Bointon TH, Barnes MD, Russo S, Craciun MF. (2015) High Quality Monolayer Graphene Synthesized by Resistive Heating Cold Wall Chemical Vapor Deposition, Advanced Materials, DOI:10.1002/adma.201501600
- Khodkov T, Khrapach I, Craciun MF, Russo S. (2015) Direct observation of a gate tunable band-gap in electrical transport in ABC-trilayer graphene, Nano Letters, DOI:10.1021/acs.nanolett.5b00772
- Hartley AM, Zaki AJ, McGarrity AR, Robert-Ansart C, Moskalenko AV, Jones GF, Craciun MF, Russo S, Elliott M, Macdonald JE. (2015) Functional modulation and directed assembly of an enzyme through designed non-natural post-translation modification, Chemical Science, DOI:10.1039/C4SC03900A.
- Shioya H, Russo S, Yamamoto M, Craciun MF, Tarucha S. (2015) Electron States of Uniaxially Strained Graphene, Nano Letters, DOI:10.1021/acs.nanolett.5b03027
- Approaching magnetic ordering in graphene materials by FeCl3 intercalation, T H Bointon, I Khrapach, R Yakimova, A V Shytov, M F Craciun, and S Russo, Nano Letters, 14 (4), pp 1751–1755 (2014)
- Straining graphene using thin film shrinkage methods, H. Shioya, M.F. Craciun, S. Russo, M. Yamamoto, S. Tarucha ,Nano Letters, 14 (3), 1158–1163, (2014).
- All-Graphene Photodetectors, F. Withers, T. H. Bointon, M. F. Craciun, S. Russo, ACS Nano 7, 5052 (2013).
- Novel highly conductive and transparent graphene based conductors, I. Khrapach, F. Withers, T. H. Bointon, D. K. Pplyushkin, W. L. Barnes, S. Russo, M. F. Craciun, Adv. Mater. 24, 2844 (2012).
- Tuneable elctronic properties in graphene, M. F. Craciun, S. Russo, M. Yamamoto, S. Tarucha, Nano Today. 6, 42 (2011).
- Accessing the transport properties of graphene and its multilayers at high carrier density, J. Ye, M. F. Craciun, M. Koshino, S. Russo, S. Inoue, H. Yuan, H. Shimotani, A. F. Morpurgo, Y. Iwasa, PNAS 108, 13002 (2011).
- Nanopatterning of fluorinated graphene by electron beam irradiation, F. Withers, T. H. Bointon, M. Dubois, S. Russo, M. F. Craciun, Nano Lett. 11, 3912 (2011).
- Trilayer graphene is a semimetal with a gate-tunable band overlap, M. F. Craciun, S. Russo, M. Yamamoto, J. B. Oostinga, A. F. Morpurgo, S. Tarucha, Nature Nanotech. 4, 383 (2009).
- Shot noise in ballistic graphene, Daneau R, Wu F, Craciun MF, Russo S, Tomi MY, Salmilehto J, Morpurgo AF, Hakonen PJ. , Phys Rev Lett, 100, 196802 (2008).
- Electronic transport through electron-doped metal phthalocyanine materials, M. F. Craciun, S. Rogge, M. J. L. Den Boer, S. Margadonna, K. Prassides, Y. Iwasa, A. F. Morpurgo, Adv. Mater. 18, 320 (2006).
- Correlation between molecular orbitals and doping dependence of the electrical conductivity in electron-doped metal-phthalocyanine compounds, M. F. Craciun, S. Rogge, A. F. Morpurgo, J. Am. Chem. Soc. 127, 12210 (2005).