Chemistry of Materials, Год журнала: 2024, Номер unknown
Опубликована: Сен. 6, 2024
Язык: Английский
Advanced Electronic Materials, Год журнала: 2024, Номер 10(12)
Опубликована: Май 27, 2024
Abstract In this work, a family of Ni‐based dibenzotetraaza[14]annulene (dtaa) complexes are investigated for their application in memristors (memory resistors). A series four Ni(II) with different peripheral substituents the dtaa ligand successfully synthesized. Based on these compounds, two‐terminal thin‐film devices fabricated planar architecture. Four metals work functions tested: Mg, Cu, Ni, and Au. It is demonstrated that ITO|[Ni(Me 4 dtaa)]|Cu show hysteretic behavior offer stable, robust, reproducible switching between high‐ low‐resistive states. An in‐depth spectroscopic characterization Ni complex performed, using radiation from infrared, through visible ultraviolet, to tender X‐rays. Operando X‐ray fluorescence spectroscopy used monitor redox structural changes upon polarization studied memristor external electric field. Density functional theory calculations better understand electronic structure material, as well rearrangement after electron injection may be responsible modulation conductivity. Finding unique case filamentary‐type resistive involving reactions stationary molecules within molecular solid postulated. Yet, formation filaments not related any significant configurational at atomic scale.
Язык: Английский
Процитировано
3
Scientific Reports, Год журнала: 2025, Номер 15(1)
Опубликована: Фев. 7, 2025
Triple cation halide perovskite (TCP) stands out as a superior photoelectric material, with broader absorption range, higher efficiency, and improved environmental stability. Due to its excellent synaptic plasticity, TCP facilitates advanced neural morphological operations like light-assisted learning. Here, modifying layer of polythiophene (P3HT) was incorporated onto the thin film enhance resistive switching (RS) characteristics device, which exhibits stability (103 endurance cycles > 103 s retention time) low energy consumption (~ 6.3 pJ for electrical stimulus ~ 6 optical stimulus). Additionally, properties / P3HT heterojunction device were explored under optoelectric coordinated modulation, encompassing Long-Term Potentiation (LTP), Depression (LTD), frequency-dependent plasticity (SRDP) voltage-dependent (SVDP). By leveraging linear arithmetic operations, Pavlovian conditioned reflex vision recognition are achieved. The accuracies 89.8% 88.1% (electric synapse) enhanced 92.4% 92.2% after introduction optoelectronic cooperative stimulation on 8 × 28 modified national institute standards technology (MNIST) handwritten digit datasets. This study holds significant implications guiding co-regulation devices in field electronics.
Язык: Английский
Процитировано
0
ACS Applied Electronic Materials, Год журнала: 2025, Номер unknown
Опубликована: Фев. 20, 2025
Язык: Английский
Процитировано
0
Materials Today Physics, Год журнала: 2025, Номер unknown, С. 101708 - 101708
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0
Nano Energy, Год журнала: 2025, Номер unknown, С. 111145 - 111145
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
0
Optical Materials, Год журнала: 2024, Номер unknown, С. 116130 - 116130
Опубликована: Сен. 1, 2024
Процитировано
2
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 6, 2024
Abstract Perovskite materials are promising contenders as the active layer in light‐harvesting and light‐emitting applications if their long‐term stability can be sufficiently increased. Chemical structural engineering shown to enhance stability, but increased complexity of material system also leads inhomogeneous functional properties across various length scales. Thus, scanning probe high‐resolution microscopy characterization techniques needed reveal role local defects results promise act foundation for future device improvements. A look at parameter space: technique‐specific sample penetration depth versus size highlights a gap current methods. High spatial resolution combined with deep is not yet achievable. However, multimodal measurement technique may key covering this space. In perspective, advanced spectro‐microscopy methods which have been applied perovskite highlighted.
Язык: Английский
Процитировано
2
Small Methods, Год журнала: 2024, Номер unknown
Опубликована: Дек. 10, 2024
Abstract Perovskite X‐ray detectors are recognized as the most promising candidates for low‐dose due to their superior performance. However, it is still full of challenging in fabrication flat‐panel imagers (FPXIs), primarily absence large area thick films that exhibit high uniformity and long‐term performance stability. A general synthesis route urgently needed grow large‐scale halide perovskite directly on a pixeled thin‐film transistor (TFT) backplane with uniformity, closing gap between great potential entry into market. In this work, an advanced precursor paste suitable blade coating developed enable high‐throughput manufacturing FPXIs. Highly uniform thickness 300‐micrometers deposited onto TFT substrates by blade‐coating method using above paste, which governs stable dark current minimal noise detectors. As result, (BA) 2 (MA) 9 Pb 10 I 31 achieved sensitivity 15200 µC Gy air −1 cm −2 limit detection (LoD) 26.8 nGy s . Moreover, FPXIs spatial resolution 0.95 lp mm (0.475 pixel ) obtained, exhibits negligible signal crosstalk excellent imaging
Язык: Английский
Процитировано
2
Inorganic Chemistry Frontiers, Год журнала: 2024, Номер 11(8), С. 2442 - 2456
Опубликована: Янв. 1, 2024
Single crystals of MA 3 Bi 2 X 9 (X = Br, I) with quasi-two-dimensional structures were successfully grown and the relationship between compositions, dimensionality, properties discussed.
Язык: Английский
Процитировано
1
Опубликована: Янв. 1, 2024
Язык: Английский
Процитировано
1