Accounts of Materials Research, Год журнала: 2025, Номер unknown
Опубликована: Апрель 1, 2025
Язык: Английский
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 17, 2024
Ruddlesden-Popper quasi-2D perovskites represent robust candidates for optoelectronic applications, achieving a delicate balance between outstanding photoresponse and stability. However, mitigating the internal defects in polycrystalline films remains challenging, their performances still lag behind that of 3D counterparts. This work highlights profound impact defect passivation at buried interface grain boundaries through dual-cation-release strategy. Cations released from pre-deposited inorganic iodide buffer layer effectively repair deep-level by inducing low-dimensional phase reconstruction interacting with undercoordinated ions. The resulting perovskite feature large size (>2 µm) minimum surface roughness, along alleviated out-of-plane residual tensile strain, which is beneficial inhibiting initiation propagation cracks. fabricated photodetector demonstrates drastically improved self-powered capability, maximum responsivity up to 0.41 A W
Язык: Английский
Процитировано
19
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 22, 2025
Abstract Regulating the crystallization process of organic–inorganic halide perovskite is essential for fabrication reproducible and efficient optoelectronic devices. Herein, a vacuum‐assisted heating treatment strategy precursor developed to obtain high‐purity photoactive phase perovskite. By eliminating residual H 2 O molecules from raw materials solvents, method prevents Pb–I framework being destroyed. Additionally, pre‐treated possesses high‐valence iodoplumbate species leading preferable films. Furthermore, high on‐off ratio 1103 attained under 0 V 550 nm illumination by employing vertical n–i–p photodetector based on pure 𝛼‐phase films interface passivation carried out incorporating phenethylammonium hydroiodide (PEAI) in n ‐type electron transport layer. The exhibits sensitivity with peak responsivity 0.93 A W −1 detectivity 1.55 × 10 12 Jones visible light range, making it potential candidate an imaging application. flexible fabricated polyethylene terephthalate (PET) substrate maintains 98.6% photocurrent density after 300 times bending preliminarily realizes sensing. heat‐treating improves adaptability complex environments enables preparation films, which boast enormous applications.
Язык: Английский
Процитировано
4
Journal of Materials Chemistry C, Год журнала: 2024, Номер 12(32), С. 12150 - 12178
Опубликована: Янв. 1, 2024
This paper reviews recent research on III–V nitrides, including their physical and chemical properties, synthesis methods, applications in optoelectronic devices.
Язык: Английский
Процитировано
12
ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер unknown
Опубликована: Янв. 3, 2025
To address the challenge of designing a highly reactive and stable bifunctional electrocatalyst for both hydrogen evolution reaction (HER) oxygen (OER), hydrophilic Fe-CoPx nanorod array on nickel foam (NF) was designed prepared in this work. The modulation d-band center Co by adding Fe effectively optimized adsorption energy intermediates. synergistic effect bimetallic active sites significantly enhanced electrocatalytic performance reactions. In alkaline seawater, Fe-CoPx/NF exhibited excellent HER (−32 mV at −10 mA cm–2) OER (216 10 activities, maintaining stability over 100 h cm–2. For overall seawater electrolysis, catalyst achieved low cell voltage 1.54 V cm–2, outperforming conventional RuO2∥Pt/C electrode (1.58 cm–2). Additionally, simulated industrial flow cell, operated stably 200 indicating its strong potential practical applications. This study introduced simple synthesis method phosphides, providing new avenue design high-performance catalysts electrolysis.
Язык: Английский
Процитировано
2
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 5, 2025
Abstract 2D Ruddlesden‐Popper (RP) perovskites have garnered increasing attention for their excellent photoresponse, characterized by high carrier mobility, tunable bandgaps, optical absorption, and molecular asymmetry. Herein, centimeter scale single crystal hybrid perovskites, BA 2 PbBr 4 (BPB) is synthesized, using quasi‐static cooling method composited with ferroelectric PVDF‐TrFE(PT) film to construct a multi‐field coupling photodetector (PD) via van der Waals force contact. Ferroelectric tests show that the PT exhibits saturated polarization strength of 3.6 µC cm −2 , allowing localized field modulate band structure enhance photocurrent. The Heterojunction systems exhibit ultra‐high responsivity (15.3 A W −1 ) detectivity (1.99 × 10 13 Jones) under 390 nm illumination at 3 V bias, performance improvement over times compared BPB PDs. Furthermore, PDs highly stable I–t curve photocurrent retention rate 97.4%. Leveraging this feature, large‐area imaging device designed level scale, enabling multifunctional vision applications accurate letter process anti‐interference number detection. work presents valuable insight in design future autonomous driving systems.
Язык: Английский
Процитировано
2
Journal of Semiconductors, Год журнала: 2025, Номер 46(1), С. 011601 - 011601
Опубликована: Янв. 1, 2025
Abstract Flexible photodetectors have garnered significant attention by virtue of their potential applications in environmental monitoring, wearable healthcare, imaging sensing, and portable optical communications. Perovskites stand out as particularly promising materials for photodetectors, offering exceptional optoelectronic properties, tunable band gaps, low-temperature solution processing, notable mechanical flexibility. In this review, we explore the latest progress flexible perovskite emphasizing strategies developed photoactive device structures to enhance performance stability. Additionally, discuss typical these devices offer insights into future directions applications.
Язык: Английский
Процитировано
2
Small, Год журнала: 2025, Номер unknown
Опубликована: Фев. 16, 2025
Abstract A novel all‐carbon visible light detector is fabricated on a nitrogen‐doped (N‐doped) single‐crystalline diamond (SCD) with interdigitated nanocarbon ohmic contacts. It has been posited that the formation of nitrogen‐vacancy (NV) centers within photoabsorption layer serves as an effective strategy to augment device's detection capabilities. To illustrate significance this enhancement, NV density manipulated and augmented by electron beam irradiation in moderately N‐doped diamond. Despite incompetent nitrogen doping, enhancement active resulted substantial nearly 1.5 orders magnitude for several critical parameters. The NV‐enabled demonstrates high degree tolerance toward thermal corrosive environments. dark current maintained at level below 0.01 pA even when device operated temperature 250 °C. robust interfacial bonding between nanocarbon‐interdigitated electrodes ensures exhibits no physical or performance deterioration subjected highly results study may provide insights can inform development high‐sensitivity, harsh environment immune detectors benefiting from multiple photon excitation quantum centers.
Язык: Английский
Процитировано
1
Materials Science and Engineering R Reports, Год журнала: 2025, Номер 164, С. 100991 - 100991
Опубликована: Апрель 9, 2025
Язык: Английский
Процитировано
1
Physica B Condensed Matter, Год журнала: 2025, Номер unknown, С. 417229 - 417229
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
1
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Окт. 6, 2024
Abstract Stacking different layers into van der Waals heterostructures (vdWHs) provides an attractive approach to integrating intrinsic prominent properties of the constituents. Mixed‐dimensional vdWHs that can interact with external fields are particularly intriguing because they host interlayer excitons (IXs) and thereby exhibiting rich physical phenomena novel device behaviors. However, previous studies IXs have primarily focused on TMDs systems, leaving excitonic correlated physics in perovskite poorly understood. Here, 2D‐3D ((BA) 2 PbBr 4 ‐CsPbBr 3 ) single‐crystalline designed discover modulation effects IX states optical optoelectronic properties. Interestingly, exhibit a newly emerging emission at 546 nm obvious broadening phenomenon FWHM. The vdWHs‐based photodetectors display light‐state rectification behaviors change output photocurrents from fully off rectified after illumination, resulting high ratio up 24342 enhanced on/off 7000. results attributed presence states, which facilitate carrier hopping interfaces. This work establishes mixed‐dimensional heterolayers as highly adaptable platform for exciton research applications.
Язык: Английский
Процитировано
9