Development of Conjugated Polymers from Pharmaceutical Intermediates for High‐Performance Panchromatic Organic Photodetectors and Fingerprint Image Sensors DOI Creative Commons
Jaehee Park,

Myeong In Kim,

Ezgi Darici Lee

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

Abstract Fingerprint‐on‐display (FoD) sensors utilizing organic photodetectors (OPDs) are nearing commercialization, making it crucial to develop novel conjugated polymers that can be used as the active layer for this technology. These should meet several requirements in terms of patent rights, large‐scale synthesis, and OPD performance. In study, containing electron‐withdrawing building blocks, easily synthesized from a 2‐aminothiazole‐4‐carboxylate Schiff base commonly pharmaceutical intermediate, developed high‐performance OPDs FoD sensors. Through alkyl chain engineering polymers, highest photocurrent density lowest dark current values were achieved OPDs. This resulted best performance with promising responsivity 0.42 A/W specific detectivity 2.6 × 10 13 Jones at −2 V under near‐infrared irradiation (810 nm). addition, they exhibited excellent rising response time 3–4 µs, falling 6–11 −3 dB cut‐off frequency 80–100 kHz. Finally, is integrated into an thin‐film transistor array build sensor 80 µm 2 pixels, resulting successful acquisition digital fingerprint image.

Язык: Английский

Development of Conjugated Polymers from Pharmaceutical Intermediates for High‐Performance Panchromatic Organic Photodetectors and Fingerprint Image Sensors DOI Creative Commons
Jaehee Park,

Myeong In Kim,

Ezgi Darici Lee

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

Abstract Fingerprint‐on‐display (FoD) sensors utilizing organic photodetectors (OPDs) are nearing commercialization, making it crucial to develop novel conjugated polymers that can be used as the active layer for this technology. These should meet several requirements in terms of patent rights, large‐scale synthesis, and OPD performance. In study, containing electron‐withdrawing building blocks, easily synthesized from a 2‐aminothiazole‐4‐carboxylate Schiff base commonly pharmaceutical intermediate, developed high‐performance OPDs FoD sensors. Through alkyl chain engineering polymers, highest photocurrent density lowest dark current values were achieved OPDs. This resulted best performance with promising responsivity 0.42 A/W specific detectivity 2.6 × 10 13 Jones at −2 V under near‐infrared irradiation (810 nm). addition, they exhibited excellent rising response time 3–4 µs, falling 6–11 −3 dB cut‐off frequency 80–100 kHz. Finally, is integrated into an thin‐film transistor array build sensor 80 µm 2 pixels, resulting successful acquisition digital fingerprint image.

Язык: Английский

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