Premium
Humidity‐Tolerant Roll‐to‐Roll Fabrication of Perovskite Solar Cells via Polymer‐Additive‐Assisted Hot Slot Die Deposition
Author(s) -
Kim JuengEun,
Kim SeokSoon,
Zuo Chuantian,
Gao Mei,
Vak Doojin,
Kim DongYu
Publication year - 2019
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201809194
Subject(s) - roll to roll processing , materials science , perovskite (structure) , fabrication , deposition (geology) , layer (electronics) , coating , die (integrated circuit) , substrate (aquarium) , optoelectronics , polymer , solar cell , composite material , nanotechnology , chemical engineering , medicine , paleontology , alternative medicine , pathology , sediment , engineering , biology , oceanography , geology
Heating‐assisted deposition is an industry‐friendly scalable deposition method. This manufacturing method is employed together with slot die coating to fabricate perovskite solar cells via a roll‐to‐roll process. The feasibility of the method is demonstrated after initial testing on a rigid substrate using a benchtop slot die coater in air. The fabricated solar cells exhibit power conversion efficiencies (PCEs) up to 14.7%. A nonelectroactive polymer additive is used with the perovskite formulation and found to improve its humidity tolerance significantly. These deposition parameters are also used in the roll‐to‐roll setup. The perovskite layer and other solution‐processed layers are slot die‐coated, and the fabricated device shows PCEs up to 11.7%, which is the highest efficiency obtained from a fully roll‐to‐roll processed perovskite solar cell to date.