Flexible near-infrared organic photodetectors for emergent wearable applications

Wang, Zehao; Cheng, Simin; Fukuda, Kenjiro; Hu, Wenping; Xu, Xiaomin; Someya, Takao

doi:10.1016/j.wees.2024.04.001

Wearable Electronics

2024

DOI: 10.1016/j.wees.2024.04.001

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Flexible near-infrared organic photodetectors for emergent wearable applications

Zehao Wang,

Simin Cheng,

Kenjiro Fukuda

et al.

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Highly‐Polarized Solar‐Blind Ultraviolet Organic Photodetectors

Zhang,

Qin,

Gao

et al. 2024

Advanced Materials

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Developing high‐performance polarization‐sensitive ultraviolet photodetectors is crucial for their application in military remote sensing, detection, bio‐inspired navigation, and machine vision. However, the significant absorption in the visible light range severely limits the application of polarization‐sensitive ultraviolet photodetectors, such as high‐quality anti‐interference imaging. Here, based on a wide‐bandgap organic semiconductor single crystal (trans‐1,2‐bis(5‐phenyldithieno[2,3‐b:3′,2′‐d]thiophen‐2‐yl)ethene, BPTTE), high‐performance polarization‐sensitive solar‐blind ultraviolet photodetectors with a dichroic ratio close to 4.26 are demonstrated. The strong anisotropy of two‐dimensional grown BPTTE single crystals in molecular vibration and optical absorption has been characterized by various techniques. Under voltage modulation, stable and efficient detection of polarized light has been demonstrated, attributed to the intrinsic anisotropy of transition dipole moment in the bc crystal plane, rather than other factors. In final, high‐contrast polarimetric imaging and anti‐interference imaging are successfully demonstrated based on BPTTE single crystal photodetectors, highlighting the potential of organic semiconductors for polarization‐sensitive solar‐blind ultraviolet photodetectors.This article is protected by copyright. All rights reserved

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Highly‐Polarized Solar‐Blind Ultraviolet Organic Photodetectors

Zhang,

Qin,

Gao

et al. 2024

Advanced Materials

Self Cite

View full text Add to dashboard Cite

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Flexible near-infrared organic photodetectors for emergent wearable applications

Cited by 1 publication

References 328 publications

Highly‐Polarized Solar‐Blind Ultraviolet Organic Photodetectors

Highly‐Polarized Solar‐Blind Ultraviolet Organic Photodetectors

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