---
_id: '8746'
abstract:
- lang: eng
  text: "Research in the field of colloidal semiconductor nanocrystals (NCs) has progressed
    tremendously, mostly because of their exceptional optoelectronic properties. Core@shell
    NCs, in which one or more inorganic layers overcoat individual NCs, recently received
    significant attention due to their remarkable optical characteristics. Reduced
    Auger recombination, suppressed blinking, and enhanced carrier multiplication
    are among the merits of core@shell NCs. Despite their importance in device development,
    the influence of the shell and the surface modification of the core@shell NC assemblies
    on the charge carrier transport remains a pertinent research objective. Type-II
    PbTe@PbS core@shell NCs, in which exclusive electron transport was demonstrated,
    still exhibit instability of their electron \r\n ransport. Here, we demonstrate
    the enhancement of electron transport and stability in PbTe@PbS core@shell NC
    assemblies using iodide as a surface passivating ligand. The combination of the
    PbS shelling and the use of the iodide ligand contributes to the addition of one
    mobile electron for each core@shell NC. Furthermore, both electron mobility and
    on/off current modulation ratio values of the core@shell NC field-effect transistor
    are steady with the usage of iodide. Excellent stability in these exclusively
    electron-transporting core@shell NCs paves the way for their utilization in electronic
    devices. "
acknowledgement: "This work was partly supported by Grants-in-Aid for Scientific Research
  by Young Scientist A (KAKENHI Wakate-A) No.\r\nJP17H04802, Grants-in-Aid for Scientific
  Research No. JP19H05602 from the Japan Society for the Promotion of Science, and
  RIKEN Incentive Research Grant (Shoreikadai) 2016. M.V.K. and M.I. acknowledge financial
  support from the European Union (EU) via FP7 ERC Starting Grant 2012 (Project NANOSOLID,
  GA No. 306733) and ETH Zurich via ETH career seed grant (No. SEED-18 16-2). We acknowledge
  Mrs. T. Kikitsu and Dr. D. Hashizume (RIKEN-CEMS) for access to the transmission
  electron microscope facility."
article_number: '173101'
article_processing_charge: No
article_type: original
author:
- first_name: Retno
  full_name: Miranti, Retno
  last_name: Miranti
- first_name: Ricky Dwi
  full_name: Septianto, Ricky Dwi
  last_name: Septianto
- first_name: Maria
  full_name: Ibáñez, Maria
  id: 43C61214-F248-11E8-B48F-1D18A9856A87
  last_name: Ibáñez
  orcid: 0000-0001-5013-2843
- first_name: Maksym V.
  full_name: Kovalenko, Maksym V.
  last_name: Kovalenko
- first_name: Nobuhiro
  full_name: Matsushita, Nobuhiro
  last_name: Matsushita
- first_name: Yoshihiro
  full_name: Iwasa, Yoshihiro
  last_name: Iwasa
- first_name: Satria Zulkarnaen
  full_name: Bisri, Satria Zulkarnaen
  last_name: Bisri
citation:
  ama: Miranti R, Septianto RD, Ibáñez M, et al. Electron transport in iodide-capped
    core@shell PbTe@PbS colloidal nanocrystal solids. <i>Applied Physics Letters</i>.
    2020;117(17). doi:<a href="https://doi.org/10.1063/5.0025965">10.1063/5.0025965</a>
  apa: Miranti, R., Septianto, R. D., Ibáñez, M., Kovalenko, M. V., Matsushita, N.,
    Iwasa, Y., &#38; Bisri, S. Z. (2020). Electron transport in iodide-capped core@shell
    PbTe@PbS colloidal nanocrystal solids. <i>Applied Physics Letters</i>. AIP Publishing.
    <a href="https://doi.org/10.1063/5.0025965">https://doi.org/10.1063/5.0025965</a>
  chicago: Miranti, Retno, Ricky Dwi Septianto, Maria Ibáñez, Maksym V. Kovalenko,
    Nobuhiro Matsushita, Yoshihiro Iwasa, and Satria Zulkarnaen Bisri. “Electron Transport
    in Iodide-Capped Core@shell PbTe@PbS Colloidal Nanocrystal Solids.” <i>Applied
    Physics Letters</i>. AIP Publishing, 2020. <a href="https://doi.org/10.1063/5.0025965">https://doi.org/10.1063/5.0025965</a>.
  ieee: R. Miranti <i>et al.</i>, “Electron transport in iodide-capped core@shell
    PbTe@PbS colloidal nanocrystal solids,” <i>Applied Physics Letters</i>, vol. 117,
    no. 17. AIP Publishing, 2020.
  ista: Miranti R, Septianto RD, Ibáñez M, Kovalenko MV, Matsushita N, Iwasa Y, Bisri
    SZ. 2020. Electron transport in iodide-capped core@shell PbTe@PbS colloidal nanocrystal
    solids. Applied Physics Letters. 117(17), 173101.
  mla: Miranti, Retno, et al. “Electron Transport in Iodide-Capped Core@shell PbTe@PbS
    Colloidal Nanocrystal Solids.” <i>Applied Physics Letters</i>, vol. 117, no. 17,
    173101, AIP Publishing, 2020, doi:<a href="https://doi.org/10.1063/5.0025965">10.1063/5.0025965</a>.
  short: R. Miranti, R.D. Septianto, M. Ibáñez, M.V. Kovalenko, N. Matsushita, Y.
    Iwasa, S.Z. Bisri, Applied Physics Letters 117 (2020).
date_created: 2020-11-09T08:05:43Z
date_published: 2020-10-26T00:00:00Z
date_updated: 2023-09-05T11:57:23Z
day: '26'
department:
- _id: MaIb
doi: 10.1063/5.0025965
external_id:
  isi:
  - '000591639700001'
intvolume: '       117'
isi: 1
issue: '17'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1063/5.0025965
month: '10'
oa: 1
oa_version: Published Version
publication: Applied Physics Letters
publication_identifier:
  eissn:
  - 1077-3118
  issn:
  - 0003-6951
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Electron transport in iodide-capped core@shell PbTe@PbS colloidal nanocrystal
  solids
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 117
year: '2020'
...