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High‐Resolution Spin‐on‐Patterning of Perovskite Thin Films for a Multiplexed Image Sensor Array
Author(s) -
Lee Woongchan,
Lee Jongha,
Yun Huiwon,
Kim Joonsoo,
Park Jinhong,
Choi Changsoon,
Kim Dong Chan,
Seo Hyunseon,
Lee Hakyong,
Yu Ji Woong,
Lee Won Bo,
Kim DaeHyeong
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201702902
Subject(s) - perovskite (structure) , materials science , thin film , fabrication , silicon , optoelectronics , deposition (geology) , nanotechnology , image sensor , multiplexing , optics , electronic engineering , chemical engineering , medicine , paleontology , alternative medicine , physics , pathology , sediment , engineering , biology
Inorganic–organic hybrid perovskite thin films have attracted significant attention as an alternative to silicon in photon‐absorbing devices mainly because of their superb optoelectronic properties. However, high‐definition patterning of perovskite thin films, which is important for fabrication of the image sensor array, is hardly accomplished owing to their extreme instability in general photolithographic solvents. Here, a novel patterning process for perovskite thin films is described: the high‐resolution spin‐on‐patterning (SoP) process. This fast and facile process is compatible with a variety of spin‐coated perovskite materials and perovskite deposition techniques. The SoP process is successfully applied to develop a high‐performance, ultrathin, and deformable perovskite‐on‐silicon multiplexed image sensor array, paving the road toward next‐generation image sensor arrays.