dc.contributor.author | De Sanctis, A | |
dc.contributor.author | Barnes, MD | |
dc.contributor.author | Amit, I | |
dc.contributor.author | Craciun, M | |
dc.contributor.author | Russo | |
dc.date.accessioned | 2017-02-24T13:21:10Z | |
dc.date.issued | 2017-02-24 | |
dc.description.abstract | Graphene's unique photoresponse has been largely used in a multitude of optoelectronics applications ranging from broadband photodetectors to wave-guide modulators. In this work we extend the range of applications to position-sensitive photodetectors (PSDs) using FeCl3-intercalated hexagonal domains of graphene grown by atmospheric pressure chemical vapour deposition (APCVD). The FeCl3-based chemical functionalisation of APCVD graphene crystals is affected by the presence of wrinkles and results in a non-uniform doping of the graphene layers. This doping profile creates multiple p–p+ photoactive junctions which show a linear and bipolar photoresponse with respect to the position of a focused light spot, which is ideal for the realization of a PSD. Our study paves the way towards the fabrication of flexible and transparent PSDs that could be embedded in smart textile and wearable electronics. | en_GB |
dc.description.sponsorship | S Russo and M F Craciun acknowledge financial support from EPSRC (Grant no. EP/J000396/1, EP/K017160/1, EP/K010050/1, EPG036101/1, EP/M001024/1, EPM002438/1), from Royal Society international Exchanges Scheme 2016/R1, from European Commission (FP7-ICT-2013-613024-GRASP) and from the Leverhulme Trust (grant title 'Quantum Drums' and 'Room temperature quantum electronics'). I Amit received funding from the People Programme (Marie Curie Actions) of the European Union's Eighth Framework Programme Horizon 2020 under REA grant agreement number 701704. | en_GB |
dc.identifier.citation | Vol. 28 (12), article 124004 | en_GB |
dc.identifier.doi | 10.1088/1361-6528/aa5ec0 | |
dc.identifier.uri | http://hdl.handle.net/10871/26061 | |
dc.language.iso | en | en_GB |
dc.publisher | IOP Publishing | en_GB |
dc.rights | Open access. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence: https://creativecommons.org/licenses/by/3.0/. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | en_GB |
dc.subject | APCVD | en_GB |
dc.subject | graphene | en_GB |
dc.subject | intercalation | en_GB |
dc.subject | photodetector | en_GB |
dc.subject | Raman | en_GB |
dc.subject | position-sensitive | en_GB |
dc.title | Functionalised hexagonal-domain graphene for position-sensitive photodetectors | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2017-02-24T13:21:10Z | |
dc.identifier.issn | 0957-4484 | |
exeter.article-number | 124004 | en_GB |
dc.description | Letter | en_GB |
dc.description | This is the author accepted manuscript. The final version is available from IOP Publishing via the DOI in this record. | en_GB |
dc.identifier.journal | Nanotechnology | en_GB |