Advanced Nanocomposites, Год журнала: 2025, Номер unknown
Опубликована: Май 1, 2025
Язык: Английский
Advanced Energy Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 2, 2025
Abstract Series of layer‐by‐layer organic solar cells (LOSCs) are constructed by sequentially spin‐coating donor layer and acceptor layers. A champion power conversion efficiency (PCE) 18.79% is achieved from the LOSCs with PBQx‐TCl/ITIC/PY‐DT as active layers, which should be one top values among OSCs optical bandgap over 1.48 eV. The middle material ITIC has a complementary photon harvesting range PBQx‐TCl PY‐DT, leading to enhanced Meanwhile, can play vital role in energy charge transfer relay increase exciton utilization transport, confirmed varied FFs normal or inverted ITIC/PY‐DT PY‐DT/ITIC Over 7% PCE improvement employing form cascaded This work may provide an efficient strategy for improving performance LOSCs.
Язык: Английский
Процитировано
11
Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160359 - 160359
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
5
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 26, 2025
Abstract Layer‐by‐layer (LbL) organic photovoltaics (OPVs) are fabricated with polymer PM1 as donor and small molecule L8‐BO acceptor by employing sequential spin‐coating technology. The BTP‐eC9 PTAA deliberately selected for individually incorporating into layer layer, resulting in the power conversion efficiency (PCE) increased from 18.22% to 19.23%. improvement of performance is attributed synergistically short circuit current density ( J SC ) 27.78 mA cm −2 fill factor (FF) 78.23%. introduction can promote photogenerated exciton dissociation, especially excitons near anode. Meanwhile, molecular crystallinity also enhanced appropriate layer. incorporation provide hole transport channels effectively improve holes generated self‐dissociation L8‐BO, FFs 77.40% synergistic effects layers result a 19.23% PCE optimized LbL‐OPVs. This work demonstrates that there great room hierarchically optimize achieving highly efficient
Язык: Английский
Процитировано
3
Sensors and Actuators A Physical, Год журнала: 2025, Номер unknown, С. 116459 - 116459
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
3
Small, Год журнала: 2025, Номер 21(11)
Опубликована: Фев. 7, 2025
Abstract A series of layered all‐polymer solar cells (LA‐PSCs) with the normal or inverted structure are prepared by employing a sequential spin‐coating method PBQx‐TCl, PM1 as polymer donor, and PY‐DT acceptor. The power conversion efficiency (PCE) LA‐PSCs can be improved from 17.20% to 18.34% incorporating 30 wt.% into PBQx‐TCl layer, resulting simultaneously increased J SC 25.35 mA cm −2 , V OC 0.971 FF 74.49%. PCE improvement also achieved PBQx‐TCl:PM1 donor layers. mixed prefer form alloyed states in LA‐PSCs, which confirmed gradually s more content Meanwhile, photogenerated excitons layers dissociated at interface between PM1, especially for located near ITO electrode. exciton dissociation provide an additional channel improving utilization efficiency, positive external quantum spectral difference (∆EQE) values Over 6.6% realized using layer.
Язык: Английский
Процитировано
2
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 12, 2025
Abstract Eliminating optical crosstalk in multi‐band photodetectors is crucial for effective signal differentiation across wavelengths, particularly communication and bioimaging applications. This study presents a strategy achieving crosstalk‐free dual‐band organic (OPDs) that integrate broadband visible narrowband near‐infrared (NIR) detection. A back‐to‐back structure combining detector NIR employed using one‐step transfer printing process. The front designed sensing photons, while the rear dedicated to detecting photons. technique allows an increased thickness of light‐absorbing layer, efficiently filtering out unwanted light. design not only optimizes light distribution but also manipulates charge collection, yielding OPD with peak responsivities 115.0 mA W −1 at 450 nm detection 85.5 780 full width half maximum 47 nm. device demonstrates robust performance anti‐interference communication, accurately distinguishing target signals amidst multiple interferences. These findings pave way future advancements photodetector.
Язык: Английский
Процитировано
2
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 2, 2025
Abstract The development of dual‐mode organic photodetectors (OPDs) greatly improves its functionality by enabling selective spectral detection. This study presents a unidirectional bias‐switchable OPD that leverages carrier extraction through the manipulation light field distributions and non‐equilibrium transport dynamics. features simple single‐layer structure, allowing for straightforward one‐sided incidence without need voltage polarity switching. By optimizing blend poly(4‐butyl‐phenyl‐diphenyl‐amine) non‐fullerene acceptor Y6, device achieves efficient single‐band detection ultraviolet (UV) at low bias dual‐band UV near‐infrared high bias. versatility not only streamlines architecture but also facilitates secure optical communication gesture simulation, making it valuable tool advancing optoelectronics. proposed strategy demonstrates universal applicability, paving way enhanced security in digital systems.
Язык: Английский
Процитировано
1
physica status solidi (b), Год журнала: 2025, Номер unknown
Опубликована: Янв. 6, 2025
Perovskite‐based photodetectors have gained significant attention due to their remarkable optoelectronic properties, including high absorption coefficients, tunable bandgaps, and suitable carrier diffusion lengths. This work focuses on designing a high‐performance perovskite photodetector with device structure of FTO/GO/CH 3 NH SnBr /Zn P 2 /Au, utilizing SCAPS‐1D simulations explore key performance parameters. The analysis systematically examines the effects crucial factors such as layer thickness defect densities important metrics, detectivity, responsivity, dark current. In this design, CH (methylammonium thin bromide) serves absorber layer, while GO (graphene oxide) Zn (zinc phosphide) act interfacial layers, contributing enhanced performance. simulated demonstrates an impressive short‐circuit current density( J SC ) 25.68 mA cm −2 achieves quantum efficiency exceeding 95% in visible spectrum. Additionally, shows maximum detectivity 9.7 × 10 16 Jones responsivity peak 0.57 A W −1 , particularly red near‐infrared regions These results underscore immense potential materials for developing efficient, wide‐spectrum characteristics.
Язык: Английский
Процитировано
1
Applied Sciences, Год журнала: 2025, Номер 15(2), С. 970 - 970
Опубликована: Янв. 20, 2025
Photodetectors (PDs) based on 4H silicon carbide (SiC) have garnered significant interest due to their exceptional optoelectronic properties. However, photoresponse is typically restricted the ultraviolet (UV) region, with limited light absorption beyond 380 nm, which constrains utility in visible detection applications. To overcome this limitation, an efficient photodetector was developed using alloy TaC (80%) and Cu (20%) a n-type SiC substrate, enabling effective at 405 nm. The device exhibited high performance photoresponsivity of 1.66 AW−1 specific detectivity 2.69×108 Jones superior ascribed enhanced electrical conductivity optical TaC: layer particularly near-ultraviolet region. This combines ease fabrication improvements, expanding potential applications high-temperature optoelectronics. It also introduces promising pathway for enhancing SiC-based photodetection capabilities across broader spectral ranges.
Язык: Английский
Процитировано
0
Journal of Materials Science Materials in Electronics, Год журнала: 2025, Номер 36(8)
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0