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Room-temperature direct synthesis of semi-conductive PbS nanocrystal inks for optoelectronic applications

Author

Listed:
  • Yongjie Wang

    (Soochow University
    The Barcelona Institute of Science and Technology, Castelldefels)

  • Zeke Liu

    (Soochow University)

  • Nengjie Huo

    (The Barcelona Institute of Science and Technology, Castelldefels)

  • Fei Li

    (Soochow University)

  • Mengfan Gu

    (Soochow University)

  • Xufeng Ling

    (Soochow University)

  • Yannan Zhang

    (Soochow University)

  • Kunyuan Lu

    (Soochow University)

  • Lu Han

    (Soochow University)

  • Honghua Fang

    (University of Groningen)

  • Artem G. Shulga

    (University of Groningen)

  • Ye Xue

    (Soochow University)

  • Sijie Zhou

    (Soochow University)

  • Fan Yang

    (Soochow University)

  • Xun Tang

    (Soochow University)

  • Jiawei Zheng

    (Soochow University)

  • Maria Antonietta Loi

    (University of Groningen)

  • Gerasimos Konstantatos

    (The Barcelona Institute of Science and Technology, Castelldefels
    ICREA-Institució Catalana de Recerca i Estudia Avançats)

  • Wanli Ma

    (Soochow University)

Abstract

Lead sulphide (PbS) nanocrystals (NCs) are promising materials for low-cost, high-performance optoelectronic devices. So far, PbS NCs have to be first synthesized with long-alkyl chain organic surface ligands and then be ligand-exchanged with shorter ligands (two-steps) to enable charge transport. However, the initial synthesis of insulated PbS NCs show no necessity and the ligand-exchange process is tedious and extravagant. Herein, we have developed a direct one-step, scalable synthetic method for iodide capped PbS (PbS-I) NC inks. The estimated cost for PbS-I NC inks is decreased to less than 6 $·g−1, compared with 16 $·g−1 for conventional methods. Furthermore, based on these PbS-I NCs, photodetector devices show a high detectivity of 1.4 × 1011 Jones and solar cells show an air-stable power conversion efficiency (PCE) up to 10%. This scalable and low-cost direct preparation of high-quality PbS-I NC inks may pave a path for the future commercialization of NC based optoelectronics.

Suggested Citation

  • Yongjie Wang & Zeke Liu & Nengjie Huo & Fei Li & Mengfan Gu & Xufeng Ling & Yannan Zhang & Kunyuan Lu & Lu Han & Honghua Fang & Artem G. Shulga & Ye Xue & Sijie Zhou & Fan Yang & Xun Tang & Jiawei Zhe, 2019. "Room-temperature direct synthesis of semi-conductive PbS nanocrystal inks for optoelectronic applications," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13158-6
    DOI: 10.1038/s41467-019-13158-6
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    Cited by:

    1. Lingju Meng & Xihua Wang, 2022. "Doping Colloidal Quantum Dot Materials and Devices for Photovoltaics," Energies, MDPI, vol. 15(7), pages 1-29, March.
    2. Wang, Dandan & Li, Yusheng & Yang, Yongge & Hayase, Shuzi & Wu, Haifeng & Wang, Ruixiang & Ding, Chao & Shen, Qing, 2023. "How to minimize voltage and fill factor losses to achieve over 20% efficiency lead chalcogenide quantum dot solar cells: Strategies expected through numerical simulation," Applied Energy, Elsevier, vol. 341(C).

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