Improved sensitivity of P3HT-based photo-transistors blended with perovskite nanocrystals

Phototransistors based on MAPbI3 perovskite nanocrystals (NCs) blended into P3HT were fabricated with different NCs:P3HT weight ratios. The high absorption coefficient and unique optical properties of the perovskite nanocrystals in the blended devices induce a faster response time and a more stable...

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Bibliographic Details
Published in:Organic electronics 2023-03, Vol.114, p.106744, Article 106744
Main Authors: Aynehband, Samaneh, Arthur, Joshua N., Mohammadi, Maryam, Nunzi, Jean-Michel, Yambem, Soniya D., Simchi, Abdolreza
Format: Article
Language:English
Subjects:
Perovskite nanocrystal
Phototransistor
Semiconducting polymer
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Summary:Phototransistors based on MAPbI3 perovskite nanocrystals (NCs) blended into P3HT were fabricated with different NCs:P3HT weight ratios. The high absorption coefficient and unique optical properties of the perovskite nanocrystals in the blended devices induce a faster response time and a more stable photoresponse, as compared with pure P3HT phototransistors. In addition, the ILIGHT/IDARK ratio of the optimized device with a 2:1 wt ratio of MAPbI3 NCs to P3HT reaches 123, which is 63% higher than in pure P3HT phototransistors. These phototransistors may find application as tunable photosensors, due to their ease of fabrication and sensitivity. [Display omitted] •Phototransistors made of perovskite nanocrystals blended into P3HT are fabricated.•Perovskite nanocrystals improve the photoresponse.•ILIGHT/IDARK ratio of the optimized device reaches 123.
ISSN:1566-1199
1878-5530
DOI:10.1016/j.orgel.2022.106744