Premium
Toward All Slot‐Die Fabricated High Efficiency Large Area Perovskite Solar Cell Using Rapid Near Infrared Heating in Ambient Air
Author(s) -
Huang ShihHan,
Guan ChengKang,
Lee PeiHuan,
Huang HungChe,
Li ChiaFeng,
Huang YuChing,
Su WeiFang
Publication year - 2020
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.202001567
Subject(s) - materials science , energy conversion efficiency , perovskite (structure) , perovskite solar cell , optoelectronics , crystallization , coating , infrared , annealing (glass) , chemical engineering , composite material , optics , physics , engineering
Currently, high‐efficiency perovskite solar cells are mainly fabricated by the spin‐coating process, which limits the possibility of commercial mass‐production of perovskite solar cells. In this work, the slot‐die coating process is combined with near‐infrared irradiation heating to quickly manufacture perovskite solar cells in air. The composition of the perovskite precursor solution is tuned by adding n‐butanol, with its low boiling point and low surface tension, to increase the near‐infrared energy absorption, facilitate the evaporation of the solvent system and film formation, and accelerate the crystallization of perovskite. High‐quality uniform perovskite film can be prepared within 18 s. Moreover, the all slot‐die coating process is demonstrated to prepare over an area of 12 cm × 12 cm, four layers of uniform film overlay on top of each other for the devices except electrode in ambient air. A power conversion efficiency of ≈11% is achieved when this all slot‐die coated film is used to fabricate device. This facile process can greatly reduce the cost, time and bypass post‐annealing to fabricate high‐efficiency large‐area perovskite solar cells in ambient air.