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High-resolution spin-on-patterning of perovskite thin films for a multiplexed image sensor array

Woongchan Lee, Jongha Lee, Huiwon Yun, Joonsoo Kim, Jinhong Park, Changsoon Choi, Dong Chan Kim, Hyunseon Seo, Hakyong Lee, Ji Woong Yu, Won Bo Lee, Dae-Hyeong Kim*

Advanced MaterialsVol. 29, No. 40, pp. 1702902201710.1002/adma.201702902

[Nanoelectronics]

Abstract

Experiments and a thermodynamic model of how a thinning liquid film retracts explain why the perovskite precursor collects on water-attracting patterns, enabling high-resolution multicolor image-sensor arrays.