Lead-Sealed Stretchable Underwater Perovskite-Based Optoelectronics via Self-Recovering Polymeric Nanomaterials
- Authors
- Kim, J.[Kim, J.]; HWAN, S. D.[HWAN, SEONG DU]; Kwon, H.[Kwon, H.]; Jin, S.[Jin, S.]; Kim, H.[Kim, H.]; WON, K. Y.[WON, KIM YE]; Jeong, Y.[Jeong, Y.]; Lee, K.[Lee, K.]; Kwon, S.J.[Kwon, S.J.]; Shin, M.[Shin, M.]; Son, D.[Son, D.]; Kim, I.S.[Kim, I.S.]
- Issue Date
- Dec-2021
- Publisher
- American Chemical Society
- Keywords
- flexible/stretchable platform; halide perovskites; lead sequestration; operational stability; self-recovering nanomaterials
- Citation
- ACS Nano, v.15, no.12, pp.20127 - 20135
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS Nano
- Volume
- 15
- Number
- 12
- Start Page
- 20127
- End Page
- 20135
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/92527
- DOI
- 10.1021/acsnano.1c08018
- ISSN
- 1936-0851
- Abstract
- To harness the full potential of halide perovskite based optoelectronics, biological safety, compatibility with flexible/stretchable platforms, and operational stability must be guaranteed. Despite substantial efforts, none has come close to providing a solution that encompasses all of these requirements. To address these issues, we devise a multifunctional encapsulation scheme utilizing hydrogen bond-based self-recovering polymeric nanomaterials as an alternative for conventional glass-based encapsulation. We show that Pb in physically damaged halide perovskite solar cells can be completely contained within the self-recovering encapsulation upon submersion in a simulated rain bath, as indicated by in vitro cytotoxicity tests. In addition, self-recovering encapsulation accommodates stable device operation upon casual bending and even stretching, which is in stark contrast to conventional glass-based encapsulation schemes. We also demonstrate the concept of assembling user-defined scalable modular optoelectronics based on halide perovskite solar cells and light emitting diodes through the use of self-recovering conductive nanocomposites. Finally, long-term operational stability of over 1000 h was achieved under harsh accelerated conditions (50 °C/50% RH and 85 °C/0% RH) with the incorporation of an ultrathin atomic layer deposited TiO2 barrier underneath the multifunctional encapsulation. In light of these merits, the encapsulation scheme based on self-recovering polymeric nanomaterials is proposed as a simple, but practical solution to a multifaceted challenge in the field of halide perovskites. © 2021 American Chemical Society.
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Collections - Information and Communication Engineering > School of Electronic and Electrical Engineering > 1. Journal Articles
- SKKU Institute for Convergence > Biomedical Engineering > 1. Journal Articles
- Engineering > Chemical Engineering > 1. Journal Articles
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