Large-Grained Perovskite Films Enabled by One-Step Meniscus-Assisted Solution Printing of Cross-Aligned Conductive Nanowires for Biodegradable Flexible Solar Cells

Jiabin Qi, Shuo Chen, Chuntao Lan, Aurelia Chi Wang, Xun Cui, Zhengwei You, Qinghong Zhang, Yaogang Li, Zhong Lin Wang, Hongzhi Wang, Zhiqun Lin

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

Increasing performance demand associated with the short lifetime of consumer electronics has triggered fast growth in electronic waste, leading to serious ecological challenges worldwide. Herein, a robust strategy for judiciously constructing flexible perovskite solar cells (PSCs) that can be conveniently biodegraded is reported. The key to this strategy is to capitalize on meniscus-assisted solution printing (MASP) as a facile means of yielding cross-aligned silver nanowires in one-step, which are subsequently impregnated in a biodegradable elastomeric polyester. Intriguingly, the as-crafted hybrid biodegradable electrode greatly constrains the solvent evaporation of the perovskite precursor solution, thereby generating fewer nuclei and in turn resulting in the deposition of a large-grained dense perovskite film that exhibits excellent optoelectronic properties with a power conversion efficiency of 17.51% in PSCs. More importantly, the hybrid biodegradable electrode-based devices also manifest impressive robustness against mechanical deformation and can be thoroughly biodegraded after use. These results signify the great potential of MASP for controllably assembling aligned conductive nanomaterials for biodegradable electrodes. As such, it represents an important endeavor toward environmentally friendly, multifunctional and flexible electronic, optoelectronic, photonic, and sensory materials and devices.

Original languageEnglish
Article number2001185
JournalAdvanced Energy Materials
Volume10
Issue number35
DOIs
StatePublished - 1 Sep 2020

Bibliographical note

Funding Information:
This work was supported by the NSF (CMMI 1727313; ECCS 1914562). The authors also acknowledge the financial support by Natural Science Foundation of China (No. 51572046, 51590902), Science and Technology Commission of Shanghai Municipality (16JC1400700), Innovation Program of Shanghai Municipal Education Commission (2017‐01‐07‐00‐03‐E00055), and the Fundamental Research Funds for the Central Universities (2232019A3‐02). J.Q. appreciates support from the Fundamental Research Funds for the Central Universities and Graduate Student Innovation Fund of Donghua University (CUSF‐DH‐D‐2018002 and BCZD2019001).

Publisher Copyright:
© 2020 Wiley-VCH GmbH

Keywords

  • aligned conductive nanowires
  • biodegradable elastomeric polyesters
  • hybrid electrodes
  • large-grained films
  • perovskite solar cells

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