Skip to main content
Home
Department Of Physics text logo
  • Research
    • Our research
    • Our research groups
    • Our research in action
    • Research funding support
    • Summer internships for undergraduates
  • Study
    • Undergraduates
    • Postgraduates
  • Engage
    • For alumni
    • For business
    • For schools
    • For the public
Menu
CMP
Credit: Jack Hobhouse

Dr James Ball

Long Term Visitor

Sub department

  • Condensed Matter Physics
james.ball@physics.ox.ac.uk
Telephone: 01865 (2)72426
Clarendon Laboratory, room 071.7
  • About
  • Publications

Imaging photoinduced surface potentials on hybrid perovskites by real-time Scanning Electron Microscopy

Micron Elsevier 121 (2019) 53-65

Authors:

Gabriele Irde, Silvia Maria Pietralunga, Vittorio Sala, Maurizio Zani, James M Ball, Alex J Barker, Annamaria Petrozza, Guglielmo Lanzani, Alberto Tagliaferri
More details from the publisher
More details
More details

Solution-processed all-perovskite multi-junction solar cells

Joule Elsevier 3:2 (2019) 387-401

Authors:

David McMeekin, Suhas Mahesh, Nakita Noel, Matthew Klug, Jongchul Lim, Jonathan Warby, James Ball, Laura Herz, Michael Johnston, Henry Snaith
More details from the publisher
Details from ORA
More details

Elucidating the long-range charge carrier mobility in metal halide perovskite thin films

Energy and Environmental Science Royal Society of Chemistry 12:1 (2018) 169-176

Authors:

Jongchul Lim, M Hoerantner, Nobuya Sakai, James M Ball, Suhas Mahesh, Nakita K Noel, Yen-Hung Lin, Jay B Patel, David P McMeekin, Michael B Johnston, Bernard Wenger, Henry J Snaith

Abstract:

Many optoelectronic properties have been reported for lead halide perovskite polycrystalline films. However, ambiguities in the evaluation of these properties remain, especially for long-range lateral charge transport, where ionic conduction can complicate interpretation of data. Here we demonstrate a new technique to measure the long-range charge carrier mobility in such materials. We combine quasi-steady-state photo-conductivity measurements (electrical probe) with photo-induced transmission and reflection measurements (optical probe) to simultaneously evaluate the conductivity and charge carrier density. With this knowledge we determine the lateral mobility to be ∼2 cm2 V−1 s−1 for CH3NH3PbI3 (MAPbI3) polycrystalline perovskite films prepared from the acetonitrile/methylamine solvent system. Furthermore, we present significant differences in long-range charge carrier mobilities, from 2.2 to 0.2 cm2 V−1 s−1, between films of contemporary perovskite compositions prepared via different fabrication processes, including solution and vapour phase deposition techniques. Arguably, our work provides the first accurate evaluation of the long-range lateral charge carrier mobility in lead halide perovskite films, with charge carrier density in the range typically achieved under photovoltaic operation.
More details from the publisher
Details from ORA
More details

New Generation Hole Transporting Materials for Perovskite Solar Cells: Amide-Based Small-Molecules with Nonconjugated Backbones

ADVANCED ENERGY MATERIALS 8:32 (2018) ARTN 1801605

Authors:

Michiel L Petrus, Kelly Schutt, Maximilian T Sirtl, Eline M Hutter, Anna C Closs, James M Ball, Johan C Bijleveld, Annamaria Petrozza, Thomas Bein, Theo J Dingemans, Tom J Savenije, Henry Snaith, Pablo Docampo
More details from the publisher
Details from ORA
More details

Ion Migration and the Role of Preconditioning Cycles in the Stabilization of the J–V Characteristics of Inverted Hybrid Perovskite Solar Cells

Advanced Energy Materials Wiley 6:2 (2016)

Authors:

Michele De Bastiani, Giorgio Dell'Erba, Marina Gandini, Valerio D'Innocenzo, Stefanie Neutzner, Ajay Ram Srimath Kandada, Giulia Grancini, Maddalena Binda, Mirko Prato, James M Ball, Mario Caironi, Annamaria Petrozza
More details from the publisher

Pagination

  • First page First
  • Previous page Prev
  • Page 1
  • Current page 2
  • Page 3
  • Page 4
  • Page 5
  • Page 6
  • Page 7
  • Page 8
  • Page 9
  • Next page Next
  • Last page Last

Footer Menu

  • Contact us
  • Giving to the Dept of Physics
  • Work with us
  • Media

User account menu

  • Log in

Follow us

FIND US

Clarendon Laboratory,

Parks Road,

Oxford,

OX1 3PU

CONTACT US

Tel: +44(0)1865272200

University of Oxfrod logo Department Of Physics text logo
IOP Juno Champion logo Athena Swan Silver Award logo

© University of Oxford - Department of Physics

Cookies | Privacy policy | Accessibility statement

Built by: Versantus

  • Home
  • Research
  • Study
  • Engage
  • Our people
  • News & Comment
  • Events
  • Our facilities & services
  • About us
  • Current students
  • Staff intranet