Dopant-Free Mexylaminotriazine Molecular Glass Hole Transport Layer for Perovskite Solar Cells
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Authors
Wang, LiangLe
Shahiduzzaman, Md.
Muslih, Ersan Y.
Nakano, Masahiro
Karakawa, Makoto
Tomita, Koji
Lebel, Olivier
Nunzi, Jean-Michel
Taima, Tetsuya
Date
2021-10-21
Type
journal article
Language
en
Keyword
Perovskite solar cell , Methylaminotriazine derivative , Molecular glass , Dopant-free , Hole transport material
Alternative Title
Abstract
The development of dopant-free organic hole transport materials (HTMs) is critical to the commercialization of perovskite solar cells (PSCs). Indeed, dopants are the key determinants of reducing photovoltaic stability. Here, we designed and synthesized three mexylaminotriazine molecular glass derivatives containing triphenylamino moieties with an easy and low-cost process. All three compounds show good solubility and film-forming ability, and they show promising results as HTMs in PSCs. The PSCs fabricated with these mexyaminotriazine-substituted HTMs reach efficiencies up to (PCE) of 12.50% (12.40% stabilized Furthermore, we also measured the long-term stability of PSCs using these HTMs and the devices showed no significant decrease of their initial PCE after storage in the dark under an atmospheric environment with a relative humidity range of 40 to 50% for over 1000 h. This work indicates that methylaminotriazine derivatives are potential hole transport layer candidates for PSCs and provides strategic guidance for the further design of dopant-free HTMs.
Description
This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Energy Materials, copyright © Copyright © 2021 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsaem.1c02013.
Citation
LiangLe Wang, Md. Shahiduzzaman, E. Y. Muslih, Masahiro Nakano, Makoto Karakawa, Koji Tomita, Olivier Lebel, Jean Michel Nunzi, and Tetsuya Taima. Dopant-Free Mexylaminotriazine Molecular Glass Hole Transport Layer for Perovskite Solar Cells, ACS Applied Energy Materials 2021 4 (11), 12232-12242. DOI: 10.1021/acsaem.1c02013
Publisher
American Chemical Society