Organic Electronics最新文献_第8页

Boosting the performance of triple-cation perovskite solar cells through 2-phenylethanethiol treatment and green anti-solvent 通过2-苯乙基硫醇处理和绿色抗溶剂提高三阳离子钙钛矿太阳能电池的性能

IF 2.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Organic Electronics

Pub Date : 2025-04-15 DOI: 10.1016/j.orgel.2025.107254

Ali L. Abed , Mustafa K.A. Mohammed , Sadeer M. Majeed , Raid A. Ismail , Duha S. Ahmed , Mika Sillanpää

Increasing the efficiency and improving the stability of perovskite solar cells (PSCs) represent major challenges for researchers and offer breakthroughs in renewable energy, driving significant progress toward sustainable energy solutions. The current study aims to increase power conversion efficiency (PCE) along with the stability of triple-cation PSCs. Herein, we employed green ethyl acetate (ETAC) anti-solvent to reduce the toxicity of the PSC production approach. Photovoltaic measurements showed a low PCE of 14.19 % for cells when we used the ETAC antisolvent. This was due to the development of a perovskite film with low crystallinity and small grains. We added 2-phenylethanethiol (2-PET) material to the ETAC anti-solvent to increase the PCE of ETAC-based PSCs. The findings showed that the 2-PET additive lowers defects in both the bulk and the surface of the perovskite layer. This improves charge transfer and inhibits charge recombination in ETAC-based PSCs. The 2-PET molecules interact with under-coordinated Pb²⁺ ions and improve the photovoltaic properties of the perovskite layer. The modified ETAC-based PSCs recorded a champion efficiency of 18.46 % with improved operational and ambient air stability. After 45 days of performing an operational stability test, the modified ETAC-based PSCs demonstrated less than 5 % efficiency loss without any encapsulation and at a humidity level of 20 %.

提高过氧化物太阳能电池（PSCs）的效率并改善其稳定性是研究人员面临的重大挑战，同时也为可再生能源领域带来了突破，推动了可持续能源解决方案的重大进展。目前的研究旨在提高三阳离子 PSC 的功率转换效率（PCE）和稳定性。在此，我们采用了绿色乙酸乙酯（ETAC）反溶剂，以降低 PSC 生产方法的毒性。光伏测量结果表明，当我们使用 ETAC 反溶剂时，电池的 PCE 很低，仅为 14.19%。这是由于形成了结晶度低、晶粒小的过氧化物薄膜。我们在 ETAC 反溶剂中添加了 2-苯基乙硫醇（2-PET）材料，以提高基于 ETAC 的 PSC 的 PCE。研究结果表明，2-PET 添加剂降低了包晶层的体积和表面缺陷。这改善了电荷转移，抑制了基于 ETAC 的 PSC 中的电荷重组。2-PET 分子与配位不足的 Pb2+ 离子相互作用，改善了过氧化物层的光伏特性。改进后的基于 ETAC 的 PSCs 的冠军效率为 18.46%，运行稳定性和环境空气稳定性均有所提高。在进行了 45 天的运行稳定性测试后，改良的基于 ETAC 的 PSC 在没有任何封装的情况下，在湿度为 20% 的条件下，效率损失小于 5%。

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引用次数: 0

A study of the synaptic memory behavior of a flour-based flexible memristor 基于面粉的柔性记忆器的突触记忆行为研究

IF 2.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Organic Electronics

Pub Date : 2025-04-15 DOI: 10.1016/j.orgel.2025.107255

Kekang Ma, Gan Li, Hao Wu, Xiaolei Chang, Mengran Wu, Ling Wei

Biomaterial-based memristors have emerged as a prominent area of research and a hotspot for research on wearable sensors and neuromorphic computing owing to their favorable characteristics of biocompatibility and cost-effectiveness. However, much work is yet to be done to develop biomimetic memristors that are simultaneously flexible and device-stabilized. The study presents a simple approach to preparing flexible memristors using wheat flour (WF) as a functional layer and investigates device stability and synaptic plasticity. The devices can operate stably under continuous voltage scanning for more than 80 weeks, and well emulate biological synaptic functions and synaptic plasticity, such as short-term memory shift to long-term memory and habituation and dehabituation processes. Finally, the mechanisms of the devices' resistive switching and memory transition behaviors were investigated. This work highlights the application of biomaterials in wearable devices and neuromorphic computing, and exemplifies the promise of biomaterials, such as wheat flour, in next-generation environmentally stable and sustainable electronic devices.

生物材料记忆电阻器由于具有良好的生物相容性和成本效益，已成为可穿戴传感器和神经形态计算研究的一个突出研究领域和热点。然而，要开发同时具有柔性和器件稳定性的仿生忆阻器，还有很多工作要做。本研究提出了一种以小麦粉（WF）为功能层制备柔性忆阻器的简单方法，并研究了器件的稳定性和突触可塑性。该装置可以在连续电压扫描下稳定工作80周以上，并能很好地模拟生物突触功能和突触可塑性，如短期记忆向长期记忆的转变以及习惯化和去习惯化过程。最后，研究了器件的阻性开关和记忆跃迁行为的机理。这项工作强调了生物材料在可穿戴设备和神经形态计算中的应用，并举例说明了生物材料（如小麦粉）在下一代环境稳定和可持续电子设备中的应用前景。

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引用次数: 0

An ion-modulated organic electrochemical synaptic transistor for efficient parallel computing and in-situ training 用于高效并行计算和原位训练的离子调制有机电化学突触晶体管

IF 2.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Organic Electronics

Pub Date : 2025-04-15 DOI: 10.1016/j.orgel.2025.107253

Xiang Wan , Jie Yan , Shengnan Cui , Yong Xu , Huabin Sun

Parallel computing architectures are urgently needed to speed up the training process of artificial neural networks. This study proposes a novel approach to parallel computing using ion-modulated organic electrochemical transistors (OECTs). Thanks to electrochemical doping and de-doping mechanism, the OECTs demonstrate long-term plasticity and exhibit distinguishable conductive states with high linearity. Moreover, our device array enables efficient weighted sum and convolution operations for image feature extraction and performs effectively in simulating hardware-based Faster R-CNN for object detection via transfer learning. The OECTs array, with its separate read and write features and controllable conductive states, achieves the integration of forward inference and backward training, resulting in successful in-situ training of convolutional neural networks (CNNs). The CNNs based on OECTs achieve accuracies of 96.49 % and 82.57 % on the MNIST and Fashion-MNIST datasets, respectively, showcasing the potential of OECTs in edge computing for enhanced resource utilization and time efficiency.

为了加快人工神经网络的训练速度，迫切需要并行计算架构。本研究提出了一种使用离子调制有机电化学晶体管（OECTs）进行并行计算的新方法。由于电化学掺杂和脱掺杂机制，OECTs具有长期的可塑性，并具有高线性度的可区分导电状态。此外，我们的设备阵列为图像特征提取提供了有效的加权和和卷积操作，并通过迁移学习有效地模拟基于硬件的Faster R-CNN用于目标检测。OECTs阵列具有独立的读写特性和可控的导电状态，实现了前向推理和后向训练的融合，成功实现了卷积神经网络（cnn）的原位训练。基于OECTs的cnn在MNIST和Fashion-MNIST数据集上的准确率分别达到96.49%和82.57%，显示了OECTs在边缘计算中提高资源利用率和时间效率的潜力。

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引用次数: 0

Selection of compatible blended cohost towards boosting performance of TADF-polymer light-emitting electrochemical cells 选择相容混合共宿主提高tadf -聚合物发光电化学电池的性能

IF 2.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Organic Electronics

Pub Date : 2025-04-10 DOI: 10.1016/j.orgel.2025.107252

Mei Chen , Jinchang Ye , Jiantian Lu , Sihua Wu , Guanrong Lin , Yingming Ma , Lihui Liu , Yuwei Zhang , Li Niu , Baohua Zhang

Light-emitting electrochemical cells (LECs) using thermally activated delayed fluorescent (TADF) polymer emitter are attractive since they own the great potential in fabricating robust LECs with low-cost and high efficiencies towards various applications. However, current scarce study disclosed that it is hard to simultaneous optimize electrochemical doping and multi-component miscibility of the emissive layer, which renders luminance and external quantum efficiency (EQE) of TADF-polymer LECs still quite low, e.g. less than 500 cd m⁻² and 1.0 %. Here, we propose to select compatible p-type and n-type small molecules as cohost of TADF-polymer emitter, which is critical to simultaneously achieve balanced, efficient p-/n-type electrochemical doping and charge transport, efficient energy transfer from cohost to TADF-polymer emitter and most importantly well restrained intra- and inter-molecular interactions, i.e. self-aggregation of host and redshift effect of host on TADF-polymer emitter. TADF-polymer LEC using such a qualified compatible cohost achieved a peak luminance of 1292 cd m⁻², a peak EQE of 2.24 %, and a peak luminous efficiency of 6.89 cd A⁻¹ at 6.5 V, which is distinctly superior to that of control devices and earlier report of TADF-polymer LECs. It proves the effectiveness of such strategy and provides a research thought on further developments.

利用热激活延迟荧光（TADF）聚合物发射极的发光电化学电池（LECs）具有制造低成本、高效率、坚固耐用的LECs的巨大潜力，具有广泛的应用前景。然而，目前缺乏的研究表明，很难同时优化电化学掺杂和发射层的多组分混相，这使得tadf聚合物LECs的亮度和外量子效率（EQE）仍然很低，例如小于500 cd m−2和1.0%。本文提出选择兼容的p型和n型小分子作为tadf -聚合物发射极的共宿主，这对于同时实现平衡、高效的p /n型电化学掺杂和电荷输运、有效的从共宿主到tadf -聚合物发射极的能量传递，以及良好地抑制分子内和分子间的相互作用，即宿主的自聚集和宿主对tadf -聚合物发射极的红移效应至关重要。使用这种合格的兼容共宿主的TADF-polymer LEC在6.5 V下的峰值亮度为1292 cd m−2，峰值EQE为2.24%，峰值发光效率为6.89 cd a−1，明显优于控制器件和先前报道的TADF-polymer LEC。证明了该策略的有效性，并为进一步发展提供了研究思路。

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引用次数: 0

Design of non-Aufbau organic radicals based on TTM/TTBrM core 基于TTM/TTBrM核心的非aufbau有机自由基设计

IF 2.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Organic Electronics

Pub Date : 2025-04-03 DOI: 10.1016/j.orgel.2025.107248

Ying Gao , Yong Wu , Bo Ren , Yan Li

Non-Aufbau organic radicals with SOMO-HOMO inversion (SHI) have been attracting significant interest from both theoretical and experimental perspectives. The unusual orbital ordering in these systems makes their electronic properties apart from the more common case, where the unpaired electron is filled in the SOMO which is higher in energy than HOMO. In this work, we designed a series of radical systems based on well-known TTM/TTBrM core, functionalized by various electron donor groups (PDMAC, PPTA, PPXZ, BFCz, PA and PT) to achieve SHI-type radicals. Using density functional theory, it was demonstrated that these electron donor groups can modulate the order of SOMO and HOMO, and all radical systems follow the general illustration of SHI that the α-HOMO pair of matching spin orbitals is higher in energy than the SOMO, and is below the corresponding SUMO in non-Aufbau electronic structures. Moreover, all radical systems exhibit fluorescence radiative rate (k_r) approaching approximately 10⁷ s⁻¹. Ab Initio Molecular Dynamics (AIMD) simulation further indicates that all radical systems are stable at high temperatures. Our calculated results show that the formation of SHI-type radical systems is related to the nature of electron donor units. Consequently, PDMAC, PPTA, PPXZ, BFCz, PA, and PT are reliable choices for designing SHI-type radical emitters. Our work thus establishes molecular guidelines for designing SHI-type radical systems and expands their applicability to organic light-emitting diode emitters.

具有SOMO-HOMO反转的非活性有机自由基（SHI）在理论和实验方面都引起了人们极大的兴趣。这些系统中不寻常的轨道顺序使它们的电子性质与更常见的情况不同，在这种情况下，未配对的电子填充在比HOMO能量更高的SOMO中。在这项工作中，我们设计了一系列基于TTM/TTBrM核心的自由基体系，通过各种电子给基（PDMAC， PPTA， PPXZ, BFCz， PA和PT）进行功能化，以获得shi型自由基。利用密度泛函数理论，证明了这些电子给体基团可以调节SOMO和HOMO的顺序，并且所有自由基体系都遵循SHI的一般说明，即匹配自旋轨道的α-HOMO对能量高于SOMO，而在非aufbau电子结构中低于相应的SUMO。此外，所有自由基体系的荧光辐射率（kr）都接近107 s−1。从头算分子动力学（AIMD）模拟进一步表明，所有自由基体系在高温下都是稳定的。计算结果表明，shi型自由基体系的形成与电子给体单位的性质有关。因此，PDMAC、PPTA、PPXZ、BFCz、PA和PT是设计shi型自由基发射器的可靠选择。因此，我们的工作为设计shi型自由基系统建立了分子指南，并扩大了它们在有机发光二极管发射器中的适用性。

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引用次数: 0

Optimizing performance and durability of perovskite light-emitting diodes through crystal grain manipulation and defect mitigation 通过晶粒控制和缺陷缓解优化钙钛矿发光二极管的性能和耐久性

IF 2.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Organic Electronics

Pub Date : 2025-03-28 DOI: 10.1016/j.orgel.2025.107249

Jiaming Yu , Youqiang Zhuge , Jincheng Lou , Taifei Zhou , Yiying Tan , Yachun Guo , Shuguang Zhang , Junbiao Peng

Recent advancements in quasi-two-dimensional perovskite light-emitting diodes (PeLEDs) have garnered significant attention due to their attractive properties, including facile solution processability, tunable emission spectra, and cost effectiveness. However, a critical challenge hindering their performance remains the quality of the perovskite emitting layer. Morphological and structural imperfections such as pinholes and halide vacancies, can significantly impede the subsequent layer deposition, leading to the formation of leakage current pathways. Furthermore, these lattice defects often serve as non-radiative recombination centers, compromising the device's overall luminescence efficiency. This study presents a facile strategy to address these limitations by incorporating polyethylene oxide (PEO) and trimethylolpropane triacrylate (TMPTA) as additives within the perovskite precursor solution. The high viscosity of PEO effectively restricts the diffusion of perovskite precursor, leading to the formation of smaller and more uniform crystal grains. In addition, the C=O functional group in TMPTA interacts favorably with uncoordinated Pb²⁺ cations in perovskite, thereby suppressing non-radiative recombination processes. By meticulously optimizing the volume ratio of PEO and TMPTA additives, effective passivation of perovskite film defects and manipulation of crystal grain morphology are achieved, leading to a significant enhancement of the perovskite emitting layer quality. Consequently, the maximum current efficiency and external quantum efficiency of green light-emitting diodes reach 45.3 cd/A and 12.01 %, respectively. This work establishes a simple and effective methodology for fabricating efficient and stable PeLEDs.

准二维钙钛矿发光二极管（PeLEDs）的最新进展由于其吸引人的特性，包括易于溶液加工，可调谐的发射光谱和成本效益而引起了极大的关注。然而，阻碍其性能的一个关键挑战仍然是钙钛矿发射层的质量。针孔和卤化物空位等形态和结构缺陷会严重阻碍随后的层沉积，导致漏电流通路的形成。此外，这些晶格缺陷通常作为非辐射复合中心，影响器件的整体发光效率。本研究提出了一种简单的策略，通过在钙钛矿前驱体溶液中加入聚乙烯氧化物（PEO）和三甲基丙烷三丙烯酸酯（TMPTA）作为添加剂来解决这些限制。PEO的高粘度有效地限制了钙钛矿前驱体的扩散，导致形成更小更均匀的晶粒。此外，TMPTA中的C=O官能团与钙钛矿中的非配位Pb2+阳离子相互作用良好，从而抑制非辐射重组过程。通过精心优化PEO和TMPTA添加剂的体积比，实现了钙钛矿薄膜缺陷的有效钝化和晶粒形貌的控制，从而显著提高了钙钛矿发射层的质量。因此，绿色发光二极管的最大电流效率和外量子效率分别达到45.3 cd/A和12.01%。本工作建立了一种简单有效的方法来制造高效、稳定的等离子体发光二极管。

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引用次数: 0

Revealing the memory effect in phototransistors with vertical phase separation of conjugated/insulating polymer blends through film-on-water interface self-assembly 通过水膜界面自组装揭示共轭/绝缘聚合物共混物垂直相分离在光电晶体管中的记忆效应

IF 2.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Organic Electronics

Pub Date : 2025-03-26 DOI: 10.1016/j.orgel.2025.107230

Yan-Ting Chen , You-Wei Cao , Yu-Chih Hsu , Yan-Cheng Lin , Yang-Yen Yu

This study utilizes a blend of poly (3-hexylthiophene) (P3HT) and poly (1-pyrenemethyl methacrylate) (PPyMA) polymers to achieve vertical phase separation through air/liquid interface self-assembly. Due to the surface energy mismatch of these blends, a bilayer structure is formed between the conjugated and insulating polymers. The blended thin films are applied to phototransistor memory devices, with PPyMA as a photoactive electret and P3HT as a semiconductor channel. A comparative study of the two-transfer direction water side (forward structure) and air side (reverse structure) reveals that the vertical phase separation morphology of the aromatic side groups in PPyMA, along with its conjugation, is closely related to the photoresponse, memory retention, and durability of the photomemory devices. Electrical analysis shows that the device fabricated with the forward transfer (P3HT/PPyMA) can achieve photo writing through exposure to ultraviolet light at 265 nm, 310 nm, 365 nm, and blue light at 455 nm, while electrical erasure is performed via gate bias, resulting in a wide memory window (∼48.7 V). The device also exhibits a stable memory ratio in repeated write/erase measurements and long-term stability exceeding 10⁴ s. In contrast, the device fabricated with the reverse transfer (PPyMA/P3HT), due to the reverse bilayer structure, required hole injection to pass through the insulating PPyMA layer, and holes may recombine with stored electrons during vertical transport, thereby dismissing the memory mechanism. As a result, the device cannot effectively store charges to achieve memory retention. This study demonstrates vertical phase separation through air/liquid interface self-assembly and reveals the photoresponse and charge storage mechanisms of photomemory devices.

本研究利用聚（3-己基噻吩）（P3HT）和聚（1-芘甲基丙烯酸甲酯）（PPyMA）聚合物的共混物，通过气/液界面自组装实现垂直相分离。由于这些共混物的表面能不匹配，在共轭聚合物和绝缘聚合物之间形成了双层结构。混合薄膜应用于光晶体管存储器件，其中PPyMA作为光活性驻极体，P3HT作为半导体通道。通过对双转移方向水侧（正向结构）和空气侧（反向结构）的比较研究，发现PPyMA中芳香侧基的垂直相分离形态及其共轭关系与光记忆器件的光响应、记忆保持和耐用性密切相关。电学分析表明，采用前向转移（P3HT/PPyMA）制备的器件可以通过暴露于265 nm、310 nm、365 nm的紫外光和455nm的蓝光下实现照片写入，而通过栅极偏置进行电擦除，从而产生宽的记忆窗口（~ 48.7 V）。该器件在重复写入/擦除测量中也表现出稳定的记忆比，长期稳定性超过104 s。相反，用反向转移（PPyMA/P3HT）制作的器件，由于反向双层结构，需要空穴注入才能穿过绝缘的PPyMA层，并且空穴在垂直传输过程中可能与存储的电子重新结合，从而消除了存储机制。因此，设备不能有效地存储电荷以实现记忆保留。本研究通过空气/液体界面自组装实现了垂直相分离，揭示了光存储器件的光响应和电荷存储机制。

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引用次数: 0

An artificial synapse based on organic heterojunction of conducting polymer and molecular ferroelectrics 基于导电聚合物与铁电分子有机异质结的人工突触

IF 2.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Organic Electronics

Pub Date : 2025-03-26 DOI: 10.1016/j.orgel.2025.107242

Zimu Li , Chunli Jiang , Chunhua Luo , Hechun Lin , Xiaodong Tang , Hui Peng

To address the challenges posed by the rapid development of artificial intelligence and big data, various artificial synaptic devices have been developed to overcome the limitations of traditional computing systems. In this study, a two-terminal device using a conducting polymer, poly(hexylthiophene) (P3HT), and a molecular ferroelectric, diisopropylammonium bromide (DIPAB), is fabricated. The incorporation of the ferroelectric layer not only establishes an energy barrier for charge carriers generated by light pulses in the P3HT layer but also allows the device's response to be modulated by altering the ferroelectric polarization state of DIPAB. This device successfully simulates some basic biological synaptic functions by modulating light stimuli. Furthermore, the light logic functions of “AND” and “OR” are realized by using light pulses with different wavelengths, as well as the simulation of associative learning. The device is used to recognize MNIST handwritten digits based on a convolutional neural network (CNN), achieving a recognition accuracy of over 90 %. These results highlight the device's potential for neuromorphic computing.

为了应对人工智能和大数据快速发展带来的挑战，各种人工突触设备已经被开发出来，以克服传统计算系统的局限性。在本研究中，利用导电聚合物聚己基噻吩（P3HT）和铁电分子二异丙基溴化铵（DIPAB）制备了一种双端器件。铁电层的加入不仅为P3HT层中光脉冲产生的载流子建立了能量垒，而且还允许通过改变DIPAB的铁电极化状态来调制器件的响应。该装置通过调节光刺激成功地模拟了一些基本的生物突触功能。利用不同波长的光脉冲实现“与”和“或”的光逻辑功能，并模拟联想学习。该设备用于基于卷积神经网络（CNN）识别MNIST手写数字，识别准确率超过90%。这些结果突出了该设备在神经形态计算方面的潜力。

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引用次数: 0

Low-voltage RGB perovskite light-emitting transistors with magnetron sputtered Ta2O5 high-k dielectric layer 具有磁控溅射Ta2O5高k介电层的低压RGB钙钛矿发光晶体管

IF 2.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Organic Electronics

Pub Date : 2025-03-24 DOI: 10.1016/j.orgel.2025.107241

Xingyu Zhang, Min Guo, Jia Li, Tingting Dai, Zihong Yang, Zhidong Lou, Yanbing Hou, Feng Teng, Yufeng Hu

Perovskite light-emitting transistors (PeLETs) represent an emerging class of optoelectronic devices that integrate the exceptional light-emission capabilities of perovskite light-emitting diodes (PeLEDs) with the efficient charge transport properties of field-effect transistors (FETs). This integration facilitates simplified fabrication, enhanced current densities, and stable charge mobility, making PeLETs highly promising for advanced display applications. Low-voltage operation and full-color emission are the primary challenges in achieving high-performance PeLETs. In this work, a PeLET structure that operates at 5 V is designed using a magnetron-sputtered Ta₂O₅ high-k dielectric layer. The influence of the hole transport layer's energy level structure and mobility on the performance of the light-emitting transistor is investigated. By tuning the perovskite bandgap, the PeLETs with emission in the red, green, and blue spectral regions have been achieved. The optimized red-, green-, and blue-emitting PeLETs exhibit charge carrier mobilities of 0.41 cm²V⁻¹s⁻¹, 1.00 cm²V⁻¹s⁻¹, and 0.51 cm²V⁻¹s⁻¹, with corresponding threshold voltages of 0.27 V, 0.64 V, and 0.46 V, respectively. This work advances the development of PeLETs by demonstrating a multilayer device architecture that enhances charge carrier dynamics and expands emission tunability. These findings provide a promising path toward low-voltage PeLETs for next-generation display technologies.

钙钛矿发光晶体管（PeLETs）是一类新兴的光电器件，它将钙钛矿发光二极管（PeLEDs）的卓越发光能力与场效应晶体管（fet）的高效电荷传输特性结合在一起。这种集成有助于简化制造，增强电流密度和稳定的电荷迁移率，使PeLETs在高级显示应用中非常有前途。低压操作和全彩发射是实现高性能PeLETs的主要挑战。在这项工作中，使用磁控溅射Ta2O5高k介电层设计了工作在5v的PeLET结构。研究了空穴输运层的能级结构和迁移率对发光晶体管性能的影响。通过调整钙钛矿带隙，可以获得在红、绿、蓝光谱区域发射的PeLETs。优化后的红色、绿色和蓝色PeLETs的载流子迁移率分别为0.41、1.00和0.51 cm2V−1s−1，相应的阈值电压分别为0.27 V、0.64 V和0.46 V。这项工作通过展示一种多层器件架构来推进PeLETs的发展，该架构增强了载流子动力学并扩展了发射可调性。这些发现为下一代显示技术的低压PeLETs提供了一条有希望的道路。

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引用次数: 0

TADF and hyperfluorescence: Pushing the frontiers of organic optoelectronics TADF和高荧光：推动有机光电子学的前沿

IF 2.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Organic Electronics

Pub Date : 2025-03-19 DOI: 10.1016/j.orgel.2025.107240

Chihaya Adachi, Lian Duan

引用次数: 0