Artificial p–n-like Junction Based on Pure 2D Organic–Inorganic Halide Perovskite Structure Having Naphthalene Diimide Acceptor Moieties

Zhao Feng, Xuelong Liu, Kentaro Imaoka, Tomohiro Ishii, Ganbaatar Tumen-Ulzii, Xun Tang, George F. Harrington, Benoît Heinrich, Jean Charles Ribierre, Lise Marie Chamoreau, Lydia Sosa Vargas, David Kreher, Kenichi Goushi, Toshinori Matsushima, Guijiang Zhou, Fabrice Mathevet, Chihaya Adachi

Research output: Contribution to journalArticlepeer-review

6 Citations (SciVal)


2D organic–inorganic perovskites are an emerging class of materials with great potential for optoelectronics since a wide variety of large functional chromophores can be regularly incorporated. Among this new type of materials, hybrid perovskite systems incorporating strong electron acceptor molecules are considered as a promising approach to designing a new type of functional 2D perovskites for optoelectronics. In this work, a rare example of organic–inorganic 2D perovskite incorporating strong acceptors such as naphthalene diimide (NDI) building blocks between inorganic sheets is presented. This hybrid architecture forms highly air-stable thin films with a structure consisting of inorganic perovskite monolayers of metal-halide octahedra separated by bilayers of NDI-based organic cations. The presence of strong electron-accepting moieties in this multifunctional donor–acceptor hybrid heterostructure leads to a rare type II heterojunction in which the excitons can be efficiently dissociated via the electron-transfer process and in which holes and electrons can be easily confined in the inorganic and organic sublayers, respectively. Such an ultimate p–n heterojunction shows improved photoconduction properties with a photocurrent multiplied by ≈40 under white-light illumination in comparison to a similar 2D perovskite structure containing optically and electrically inert alkyl chains as organic components.

Original languageEnglish
Article number2202734
JournalAdvanced Optical Materials
Issue number10
Early online date12 Mar 2023
Publication statusPublished - 19 May 2023

Bibliographical note

Funding Information:
The authors thank Pohang Accelerator Laboratory (PAL) for giving them the opportunity to perform the GIWAXS measurements, MEST and POSTECH for supporting these experiments, Dr. Hyungju Ahn for adjustments and help, and other colleagues from the 9A USAXS beamline for assistance. This work was supported by the JSPS Core‐to‐Core Programs (Grant No. JPJSCCA20180005); French National Center for Scientific Research (CNRS/IRP LUX‐ERIT); JSPS KAKENHI (Grant No. 20H02817 and Grant No. 21K18210); and by the New Energy and Industrial Technology Development Organization (NEDO), the Green Innovation Fund Project. It was also supported by the Iketani Science and Technology Foundation; the Murata Science Foundation; the Iwatani Naoji Foundation; and the Asahi Glass Foundation. Z.F. also thanks the China Scholarship Council for its support (CSC, Grant No. 201906280233) during his research work at Kyushu University (OPERA).

Publisher Copyright:
© 2023 Wiley-VCH GmbH.


  • 2D perovskites
  • electron transfer
  • naphthalene diimide (NDI)
  • photoconduction
  • p–n heterojunction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics


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