High-performance integrated circularly polarized light detection using soft-helix-decorated perovskite diodes DOI
Shuaijun Liu, Furong Yu, Xuan Liu

et al.

Newton, Journal Year: 2024, Volume and Issue: unknown, P. 100003 - 100003

Published: Dec. 1, 2024

Language: Английский

Chiroptical organic heterojunction synaptic phototransistor exhibiting near-theoretical limit asymmetry factor for neuromorphic cryptography DOI
Yu Zhang,

Meiqiu Dong,

Yuhan Du

et al.

Matter, Journal Year: 2025, Volume and Issue: 8(3), P. 101945 - 101945

Published: Jan. 13, 2025

Language: Английский

Citations

2

Flexible near-infrared organic photodetectors for emergent wearable applications DOI Creative Commons
Zehao Wang, Simin Cheng, Kenjiro Fukuda

et al.

Wearable electronics., Journal Year: 2024, Volume and Issue: 1, P. 53 - 77

Published: May 13, 2024

With the evolution of Industry 4.0, next-generation wearable devices have come under spotlight, where organic electronics are playing an important role due to their flexible form factor, high performance, and integration capability. Designed conform soft dynamic surfaces, photodetectors (OPDs) integrated arrays stand out for application potential in non-invasive biosensing bio-imaging, with inherent advantages mitigating motion artifacts – a notable limitation traditional, rigid photodetector systems. Leveraging near-infrared (NIR) spectrum's capability deep skin penetration minimal scattering human tissues, NIR OPDs especially capable precise diagnostics enhanced signal quality. The adaptable factor further broadens applications human-environment interaction, marking shift towards more responsive intelligent technologies. This review summarizes latest challenges breakthroughs OPDs, emphasizing effective strategies toward high-performance device units We discuss remaining outlook on vast reshaping our interaction surroundings.

Language: Английский

Citations

14

Exploring Nanoscale Perovskite Materials for Next-Generation Photodetectors: A Comprehensive Review and Future Directions DOI Creative Commons
Xin Li,

Sikandar Aftab,

Maria Mukhtar

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Sept. 30, 2024

Abstract The rapid advancement of nanotechnology has sparked much interest in applying nanoscale perovskite materials for photodetection applications. These are promising candidates next-generation photodetectors (PDs) due to their unique optoelectronic properties and flexible synthesis routes. This review explores the approaches used development use devices made different architectures, including quantum dots, nanosheets, nanorods, nanowires, nanocrystals. Through a thorough analysis recent literature, also addresses common issues like mechanisms underlying degradation PDs offers perspectives on potential solutions improve stability scalability that impede widespread implementation. In addition, it highlights encompasses detection light fields dimensions other than intensity suggests avenues future research overcome these obstacles fully realize state-of-the-art systems. provides comprehensive overview guides efforts towards improved performance wider applicability, making valuable resource researchers.

Language: Английский

Citations

10

Effective Strategy for High‐Performance Organic Photodetectors with Significantly Suppressed Dark Current and Improved Responsivity DOI
Shuai Zhang, Tong Liu, Jianxiao Wang

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(19)

Published: May 11, 2024

Abstract Organic photodetectors (OPDs) have attracted immense interest as solution‐processable optical signal‐capturing devices due to their various advantages, such adjustable response range, excellent weak light response, lightweight, flexibility, and ease of processing on diverse substrates. Low dark current density ( J d ) high responsivity R are key requirements necessary for achieving a specific detectivity D *). Here, an effective strategy preparing high‐performance OPDs with potential micro p‐i‐n structure by introducing insulating poly(aryl ether) (PAEN) into the organic photosensitive layer is reported. The PM6:PC 71 BM‐based capable significantly suppressing while increasing , which can be attributed multiple optimizations morphology charge transport caused addition PAEN. As result, value (3.63 × 10 −10 A cm −2 two orders magnitude lower than that device without PAEN (1.00 −8 at −1 V bias. Combined increased 0.376 W optimized achieves *of 3.45 13 Jones (−1 620 nm). demonstrate performance comparable commercial Si (Hamamatsu S1133), paving way direct market development this cost‐effective photodetection technology.

Language: Английский

Citations

5

A Facile Synthesis of TiO2–α-Ga2O3-Based Self-Powered Broad-Band UVC/UVA Photodetector and Optical Communication Study DOI Open Access

Wenxing Zhang,

Anqi Xu,

Xin Zhou

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(16), P. 4103 - 4103

Published: Aug. 19, 2024

Traditional optical communication systems rely on single narrow-band PDs, which can expose confidential information and data to potential eavesdropping in free space. With advancements technology, even the UV spectrum, invisible sun, faces risks of interception. Consequently, broad-band PDs that combine encryption with algorithmic hold significant promise for secure reliable communication. This study presents a photodetector based TiO2–α-Ga2O3 heterostructures, prepared via direct oxidation hydrothermal reaction, demonstrating self-powered UVC/UVA detection capabilities. The PD exhibits response peaks at approximately 250 320 nm, R 42.16 59.88 mA/W D* 8.21 × 1013 9.56 Jones, respectively. Leveraging superior characteristics UVC UVA wavelengths, this device has been employed develop system designed transmission. proposed features two independent channels: one transmission using another key distribution UVA. Secure is ensured through specialized algorithms. In summary, work offers straightforward, cost-effective, practical method fabricating PDs. provides new insights into development multi-purpose, multi-band devices holds integration multifunctional optoelectronic future.

Language: Английский

Citations

5

Room-temperature polarization-sensitive photodetectors: Materials, device physics, and applications DOI
Xin Du,

Haijuan Wu,

Zhenghan Peng

et al.

Materials Science and Engineering R Reports, Journal Year: 2024, Volume and Issue: 161, P. 100839 - 100839

Published: Aug. 29, 2024

Language: Английский

Citations

5

Regulation of intermolecular interaction energies for improving polarization-sensitive photodetection DOI
Zhimin Shao, Feng Yu, Yijing Fan

et al.

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(5)

Published: Feb. 3, 2025

In this study, we systematically modified the polymer structure by incorporating non-conjugated units and substituting atoms in fused-ring core, resulting significant alterations to intermolecular interaction energies of −974.1, −1076.4, −1115.1 kJ/mol between polymer:chloroform polymer:ethylene glycol. These modifications greatly enhance orientation all-polymer backbone intrinsic polarization-sensitive performance device, demonstrating exceptional capabilities polarized light detection imaging. The optimal device exhibits an ultra-fast response speed 10.6 μs, a wide frequency 17.78 kHz, large linear dynamic range 132.3 dB with good imaging ability, indicating potential benefits for diverse array extreme applications. This work illustrates how strategy modifying core can contribute continuous improvements molecular detection.

Language: Английский

Citations

0

Ultraviolet Circularly Polarized Luminescence: Progress in Chiral Materials and Emerging Applications DOI
Chen Li, Yi Wei, Zewei Quan

et al.

Journal of Luminescence, Journal Year: 2025, Volume and Issue: 280, P. 121127 - 121127

Published: Feb. 11, 2025

Language: Английский

Citations

0

An Opto‐Iontronic Cholesteric Liquid Crystalline Retina for Multimodal Circularly Polarized Neuromorphic Vision DOI Open Access
Donghui Wang, Shaocong Wang, Yu Dong

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract Circularly polarized light (CPL) is fundamental to phase‐controlled imaging, quantum optics, and optical computing. Conventional CPL detection, relying on polarizers quarter‐wave plates, complicates device design reduces sensitivity. Among emerging detectors, organic field‐effect transistors (OFET) with helical semiconductors are highly promising due their compact structures but suffer tedious synthesis, low dissymmetric factors ( g ph < 0.1), high operating voltages (> 50 V). To address these issues, an opto‐iontronic cholesteric liquid crystalline i ‐CLC) film developed that both electrically photonically active, serving as the dielectric in phototransistors. The well‐defined structure broadly tunable pitches of ‐CLC enable it detect excellent “handedness” selectivity across a broad spectrum. Moreover, its ionic nature provides capacitance (up 580 nF cm − 2 @20 Hz). resulting flexible detectors achieve unprecedentedly dissymmetry factor = 1.33) at (< 5 V), showcasing significant potential communication data encryption. Furthermore, leveraging , they can perform in‐sensor computing for accurate semantic segmentation using fused multimodal visual inputs (e.g., circularly ordinary light), achieving accuracy 75.73% mean intersection over union 0.3982, surpassing performance non‐CPL photodetectors. Additionally, optimizes power consumption by 10 compared most conventional processing systems, offering groundbreaking hardware solution high‐performance neuromorphic vision.

Language: Английский

Citations

0

Photodetectors based on chlorophyll for visible image sensing and near-infrared moving detection with bidirectional current response DOI
Yuting Sun, Jian Jiang, Yuting Xu

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137789 - 137789

Published: May 1, 2025

Language: Английский

Citations

0