Abstract
The development of a scalable fabrication technology for halide perovskite solar cells (HPSCs) is an important challenge to realize their commercialization. In particular, continuous solution-coating processes are needed to produce scalable large-area HPSCs. Herein, we report a single-solution bar-coating process that introduces an intermediate phase stage for large-area CH 3 NH 3 PbI 3 films with full coverage and smooth morphology using N-cyclohexyl-2-pyrrolidone (CHP) as a mediator. In contrast to the conventional double-solution coating methods that use antisolvent treatments, the preformed uniform intermediate phase in the single-solution bar-coating process enables the formation of highly uniform perovskite films with a 10 cm × 10 cm area even without antisolvent treatment. The HPSCs fabricated using the resultant single-solution bar-coated perovskite films exhibit superior photovoltaic performance, narrower distribution, and smaller loss with a larger active area than devices fabricated using single-solution spin-coated perovskite films.
Original language | English |
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Pages (from-to) | 11537-11544 |
Number of pages | 8 |
Journal | ACS Applied Materials and Interfaces |
Volume | 11 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2019 Mar 27 |
Bibliographical note
Funding Information:This work was supported by the Global Frontier R&D Program on Center for Multiscale Energy System funded by the National Research Foundation (under contract No. 2012M3A6A7054855). This work was also supported by the National Research Foundation (NRF) of Korea grant funded by the Korea government (NRF-2015M1A2A2056827, NRF-2017R1A2B3010927, NRF-2017R1A4A1015022, NRF-2017M1A2A2087351).
Funding Information:
This work was supported by the Global Frontier R&D Program on Center for Multiscale Energy System funded by the National Research Foundation (under contract No. 2012M3A6A7054855). This work was also supported by the National Research Foundation (NRF) of Korea grant funded by the Korea government (NRF-2015M1A2A2056827, NRF-2017R1A2B3010927, NRF-2017R1A4A1015022 NRF-2017M1A2A2087351).
Publisher Copyright:
© 2019 American Chemical Society.
Keywords
- bar-coating
- intermediate phase
- large-area
- perovskite solar cells
- single-solution coating process
ASJC Scopus subject areas
- Materials Science(all)