Vertically stacked PEDOT:PSS/PbS/CsPbCl3 for flexible optoelectronic devices

• Published in: Journal of alloys and compounds Vol. 866; p. 158997
• Main Authors: Zhao, Xinhong, Li, Kai, Fang, Yongchu, Tao, Yu, Song, Xiaoxian, Zhang, Haiting, Yu, Huaqing, Yan, Zaoxue
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 15.06.2021; Elsevier BV
• Subjects: Broadband photodetection; CsPbCl3 nanoplatelets; Flexible optoelectronics; Low temperature; Optoelectronic devices; Organic-inorganic hybrid devices; PbS quantum dots; Photoelectric effect; Photoelectric emission; Photometers; Portable equipment; Spin coating; Synergistic effect; CsPbCl3 nanoplatelets; Broadband photodetection; PbS quantum dots; Organic-inorganic hybrid devices; Flexible optoelectronics
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2021.158997

•Vertically stacked PEDOT:PSS/PbS/CsPbCl3 photodetectors were prepared by spin-coating.•The flexible photodetectors exhibited a high responsivity and detectivity.•The performance is much higher than that of single component PbS and CsPbCl3.•The photocurrent of a series of bending had excellet stability and reproducibility. [Display omitted] Flexible photodetectors based on vertically stacked PEDOT:PSS/PbS/CsPbCl3 were prepared by a simple low temperature spin-coating method. Due to the synergistic effect, the flexible PEDOT:PSS/PbS/CsPbCl3 photodetectors exhibited a high responsivity of 6.67 A/W and detectivity of 5.78 × 1010 Jones under a relatively low external bias. The photocurrent of a series of continuous-bending shown that the flexible PEDOT:PSS/PbS/CsPbCl3 photodetectors had excellet photocurrent stability and reproducibility. The results indicate that the vertically stacked PEDOT:PSS/PbS/CsPbCl3 architecture has great potential in wearable and portable low-voltage optoelectronic devices.