Bias-Switchable Photomultiplication and Photovoltaic Dual-Mode Flexible Near-Infrared Organic Photodetector DOI Creative Commons
Yazhong Wang, Yijun Huang, Lin Shao

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Окт. 31, 2024

Abstract Photomultiplication-type organic photodetectors (PM-OPDs) offer signal amplification, ideal for faint light detection and simplified systems, but typically face slow response speeds high dark currents. In contrast, photovoltaic-type OPDs (PV-OPDs) provide fast detectivity (D*) have limited photoresponse. This study introduces a non-fullerene acceptor, BFDO-4F, into the active layer to create trap states photogenerated electron capture. The resulting device exhibits dual-mode characteristics is bias-switchable between PV PM-modes. It achieves D* of 1.92×10¹² Jones times 2.83/4.43 µs in PV-mode, exceptional EQEs up 3484% PM-mode. Notably, an on-chip self-powered module featuring PV-mode pixels driving PM-mode pixel demonstrated, yielding photocurrent approximately five higher than reference device. approach establishes new framework developing multifunctional, bias-switchable, OPDs, unlocking diverse opportunities highly integrated advanced sensing applications.

Язык: Английский

Stable Electron Spin Pan on Aromatic Oxalic Acid Radical DOI

Jiaxing Huang,

Chenghui Liao,

Longtian Guan

и другие.

Chinese Journal of Chemistry, Год журнала: 2024, Номер 42(18), С. 2173 - 2179

Опубликована: Май 12, 2024

Comprehensive Summary The stability of organic radicals in ambient condition is important for their practical application. During the development radical chemistry, electron‐withdrawing and steric hindrance groups are usually introduced to improve via reducing reactivity with oxygen air. Herein, carbonyl construct a planar aromatic oxalic acid (IDF‐O 8 ) two‐dimensional electron spin pan structure. Interestingly, IDF‐O exhibited low optical bandgap 0.91 eV film, however, multiple quinone resonance structures between ketone phenol contribute high open‐shell without protection large groups. Under irradiation 808 nm (1.2 W·cm –2 ), reaches 147 °C powder state. This work provides an efficient synthesis route system, which different from famous fullerene, carbon nanotube graphene. can be extended tube or sphere system based on design strategy inorganic future.

Язык: Английский

Процитировано

0
High glass transition temperature dopant-free hole transport material via D-A-π-A-D-strategy for perovskite solar cell DOI

Chenghui Liao,

Ligang Yuan, Yiheng Zhang

и другие.

Rare Metals, Год журнала: 2024, Номер 43(12), С. 6373 - 6383

Опубликована: Авг. 1, 2024

Язык: Английский

Процитировано

0
Near infrared aggregation‐induced emission fluorescent materials for lipid droplets testing and photodynamic therapy DOI
Jiayang Wu, Yao Zhang, Xiaoxiao Wu

и другие.

Luminescence, Год журнала: 2024, Номер 39(9)

Опубликована: Сен. 1, 2024

Abstract Near‐infrared (NIR) fluorescent probes with aggregation‐induced emission (AIE) properties are of great significance in cell imaging and cancer therapy. However, the complexity its synthesis, poor photostabilities, expensive raw materials still pose some obstacles to their practical application. This study reported an AIE luminescent material red application vitro photodynamic therapy (PDT) study. has characteristics simple large Stokes shift, good excellent lipid droplets‐specific testing ability. Interestingly, this red‐emitting can effectively produce reactive oxygen species (ROS) under white light irradiation, further achieving PDT‐mediated killing cells. In conclusion, demonstrates a approach synthesize NIR both therapeutic effects, providing ideal architecture for constructing long‐wavelength materials.

Язык: Английский

Процитировано

0
Research Progress of Solar Interface Evaporation Technology Based on Photothermal Organic Small Molecules DOI

文学 高

Advances in Material Chemistry, Год журнала: 2024, Номер 12(04), С. 133 - 148

Опубликована: Янв. 1, 2024

Язык: Английский

Процитировано

0
Bias-Switchable Photomultiplication and Photovoltaic Dual-Mode Flexible Near-Infrared Organic Photodetector DOI Creative Commons
Yazhong Wang, Yijun Huang, Lin Shao

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Окт. 31, 2024

Abstract Photomultiplication-type organic photodetectors (PM-OPDs) offer signal amplification, ideal for faint light detection and simplified systems, but typically face slow response speeds high dark currents. In contrast, photovoltaic-type OPDs (PV-OPDs) provide fast detectivity (D*) have limited photoresponse. This study introduces a non-fullerene acceptor, BFDO-4F, into the active layer to create trap states photogenerated electron capture. The resulting device exhibits dual-mode characteristics is bias-switchable between PV PM-modes. It achieves D* of 1.92×10¹² Jones times 2.83/4.43 µs in PV-mode, exceptional EQEs up 3484% PM-mode. Notably, an on-chip self-powered module featuring PV-mode pixels driving PM-mode pixel demonstrated, yielding photocurrent approximately five higher than reference device. approach establishes new framework developing multifunctional, bias-switchable, OPDs, unlocking diverse opportunities highly integrated advanced sensing applications.

Язык: Английский

Процитировано

0