Journal
DYES AND PIGMENTS
Volume 134, Issue -, Pages 198-202Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2016.07.015
Keywords
Functional dye; Perovskite; Pyridine gas; Chemosensor; Interaction distance
Funding
- Basic Science Research Program through the National Research Foundation (NRF) - Ministry of Science, ICT & Future Planning [2015R1C1A1A01053241]
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [2014002985]
- National Research Foundation of Korea [2015R1C1A1A01053241] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We have investigated sub-second and reversible pyridine sensing using organometal halide CH3NH3PbI3 perovskite functional dye (PFD). Upon exposure of pyridine vapor, perovskite film showed a reversible visible color change with fluorescence switching driven by interactions between pyridine and perovskite. Perovskite functional dye also showed excellent durability by showing more than 100 times repeatability of reversible sensing. This study suggests a novel and practical sensing platform for highly sensitive and durable colorimetric/emission pyridine chemosensors. (C) 2016 Elsevier Ltd. All rights reserved.
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