Organic Electronics最新文献_第4页

Electrochromic supercapacitor electrodes based on viologen-derived cross-linked thin films 基于紫堇衍生交联薄膜的电致变色超级电容器电极

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-05-14 DOI: 10.1016/j.orgel.2025.107273

Sude Uluçay , Neul Gyum Ha , Arzu Kortun , Sinem Altınışık , Selin Pıravadılı , Jin Han Kwon , Hong Chul Moon , Sermet Koyuncu

{"title":"Electrochromic supercapacitor electrodes based on viologen-derived cross-linked thin films","authors":"Sude Uluçay , Neul Gyum Ha , Arzu Kortun , Sinem Altınışık , Selin Pıravadılı , Jin Han Kwon , Hong Chul Moon , Sermet Koyuncu","doi":"10.1016/j.orgel.2025.107273","DOIUrl":"10.1016/j.orgel.2025.107273","url":null,"abstract":"<div><div>Viologens are an important class of materials in organic electrochromic technology due to their n-type semiconductor properties and the high color intensity in their radical cation state. Due to their charged structures, viologens are generally ideal molecules for gel-based organic electrochromic devices, but with specific modifications, they can also be employed in thin-film-based electrochromic devices (ECDs). In this study, crosslinking reactions of viologen-based molecules (ALV-X) with various allyl group-containing counterions were conducted on ITO/Glass surfaces in the presence of a tetra-thiol-based crosslinker. The surface roughness of the resulting films varied from 4.64 nm to 8.46 nm depending on the counterion exchange. Electrochemical characterizations of the prepared viologen-based crosslinked electrodes indicated that the LUMO energy levels ranged between −4.267 eV and −4.297 eV. Viologen-based cross-linked thin films with transmittance changes close to 30 % in the visible region, 50 % in the UV region and 20 % in the NIR region with specific capacitances of 0.25 mF cm<sup>−2</sup> have been found to be highly suitable materials, especially as cathodic layers in electrochromic/supercapacitor devices.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"144 ","pages":"Article 107273"},"PeriodicalIF":2.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Kinetics of photogenerated carbon dangling bonds in organic photovoltaic thin Films: An EPR study 有机光伏薄膜中光生碳悬空键动力学：EPR研究

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-05-14 DOI: 10.1016/j.orgel.2025.107269

Raghunandan B. Iyer , Maurissa Higgins , Katelyn Noack , Joshua Wolanyk , Matthew Dygert , Sarah Cady , Erik Dykstra , Rana Biswas , Ruth Shinar , Joseph Shinar

{"title":"Kinetics of photogenerated carbon dangling bonds in organic photovoltaic thin Films: An EPR study","authors":"Raghunandan B. Iyer , Maurissa Higgins , Katelyn Noack , Joshua Wolanyk , Matthew Dygert , Sarah Cady , Erik Dykstra , Rana Biswas , Ruth Shinar , Joseph Shinar","doi":"10.1016/j.orgel.2025.107269","DOIUrl":"10.1016/j.orgel.2025.107269","url":null,"abstract":"<div><div>We report an investigation of the early kinetics of photogenerated carbon dangling bond (CDB) formation and annealing in organic photovoltaic bulk heterojunction (BHJ) thin film blends under oxygen- and moisture-free conditions, using X-band electron paramagnetic resonance (EPR) spectroscopy. The study focuses on donor:acceptor BHJ blends of PCE12:PCBM and PCE12:ITIC films, where PCE12 is PBDB-T. The time evolution of CDBs in such drop-cast BHJ films irradiated at 300 nm is monitored. The early kinetics of CDB formation, critical for understanding OPV degradation mechanisms, is studied. Theoretical analysis of the defect growth mechanism suggests a monomolecular defect creation model where the defect count follows a power-law <em>t</em> <sup><em>β</em></sup> with irradiation time <em>t</em>, where <em>β</em> ∼ 0.55–0.58, in excellent agreement with the theoretically expected value of <em>β</em> = 1/2. This model is compatible with CDB formation by the holes in donor sites adjacent to acceptors, likely assisted by energy released from quenching of nearby excitons by the holes, elucidating the physical mechanism underlying CDB formation. This is significant for designing improved materials, which mitigate defect creation, and consequently advancing the development of stable OPV systems.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"144 ","pages":"Article 107269"},"PeriodicalIF":2.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of exciton diffusion lengths potentially free from electrodes and charge related inaccuracies 可能不受电极影响的激子扩散长度的测定和与电荷有关的误差

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-05-12 DOI: 10.1016/j.orgel.2025.107274

Yingquan Peng , Qinyong Dai , Nan Chen , Wenli Lv , Lei Sun , Sunan Xu , Ying Wang

{"title":"Determination of exciton diffusion lengths potentially free from electrodes and charge related inaccuracies","authors":"Yingquan Peng , Qinyong Dai , Nan Chen , Wenli Lv , Lei Sun , Sunan Xu , Ying Wang","doi":"10.1016/j.orgel.2025.107274","DOIUrl":"10.1016/j.orgel.2025.107274","url":null,"abstract":"<div><div>Exciton diffusion length is one of the key parameters of an organic semiconductor thin film, and plays an important role in optimizing the performance of organic optoelectronic devices. By the existing photoelectronic methods for measuring the exciton diffusion length, vertical diode structure is used, which may lead to inaccuracies resulting from the electrode and charge related effects, such as enhanced quenching of excitons near the metal/organic interface and annihilation of excitons via charge-exciton interaction. Herein we propose a novel method for measuring the exciton diffusion length by incorporating the testing organic film into an organic phototransistor. In the device sample, the testing organic film is free from electrode contact and electric filed, enabling measurement free from errors related to the effects of metal electrodes. More importantly, in our method the generation and diffusion of excitons is fully isolated from photocarrier transport, eliminating the error associated with charge-exciton interactions. For demonstration, the exciton diffusion length of tin phthalocyanine (SnPc) thin film was determined to be 14.03 ± 2.76 nm, which is in good agreement with that reported in literatures.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"144 ","pages":"Article 107274"},"PeriodicalIF":2.7,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydroxyethyl cellulose passivation for high-efficiency pure-red perovskite light-emitting diodes 高效纯红色钙钛矿发光二极管用羟乙基纤维素钝化

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-05-09 DOI: 10.1016/j.orgel.2025.107272

Baoxiang Chai , Qiaoli Niu , Junhao Xiong , Jun Yang , Yuqing Chen , Wenjin Zeng , Xinwen Peng , Tao Yang , Ruidong Xia

{"title":"Hydroxyethyl cellulose passivation for high-efficiency pure-red perovskite light-emitting diodes","authors":"Baoxiang Chai , Qiaoli Niu , Junhao Xiong , Jun Yang , Yuqing Chen , Wenjin Zeng , Xinwen Peng , Tao Yang , Ruidong Xia","doi":"10.1016/j.orgel.2025.107272","DOIUrl":"10.1016/j.orgel.2025.107272","url":null,"abstract":"<div><div>Perovskite light-emitting diodes (PeLEDs) have exhibited tremendous potential for commercial applications in the fields of displays, lighting, and information technology. For achieving pure red electroluminescence, quasi-two-dimensional (Q-2D) perovskite based on Br/I mixed halides has been commonly used. However, during the in-situ crystallization process of perovskite films via low-temperature solution methods, the complexity of coordination among various ions leads to the presence of uncoordinated ions, resulting in numerous defects in the perovskite films. These defects significantly impact the performance and stability of PeLEDs. In this work, hydroxyethyl cellulose (HEC) was incorporated into the hole transport layer (HTL) to passivate the defects in perovskite films. Experimental results showed that the hydroxyl groups in HEC interacted with Pb<sup>2+</sup>/K<sup>+</sup>/PEA<sup>+</sup> ions in the perovskite, contributing to the passivation of defects. Simultaneously, the addition of HEC inhibited the low-dimensional phases (n = 1, 2) and enhanced the high-dimensional phase (n = 3) in the Q-2D perovskite films. The optimized distribution of n phases was favorable for the radiative recombination. After the introduction of HEC, the external quantum efficiency (EQE) of pure red PeLEDs at 636 nm showed a significant improvement compared to the control device, from 5.31 % to 6.82 %. This strategy provides an excellent alterative to improve the electroluminescent efficiency of red PeLEDs.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"144 ","pages":"Article 107272"},"PeriodicalIF":2.7,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Blue phosphorescent organic light-emitting diodes with extended operational lifetime through hole transport layer management 通过空穴传输层管理延长使用寿命的蓝色磷光有机发光二极管

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-05-08 DOI: 10.1016/j.orgel.2025.107263

KangMun Lee , Jong-Kwan Bin

{"title":"Blue phosphorescent organic light-emitting diodes with extended operational lifetime through hole transport layer management","authors":"KangMun Lee , Jong-Kwan Bin","doi":"10.1016/j.orgel.2025.107263","DOIUrl":"10.1016/j.orgel.2025.107263","url":null,"abstract":"<div><div>Achieving higher efficiency and a longer operational lifetime is equally important yet remains a daunting task in the domain of blue phosphorescent organic light-emitting diodes (PhOLEDs). Optimizing an appropriate hole transport layer (HTL) has proven to be a potential approach for improving the performance of blue PhOLED. In the present work, we investigated a spiro-bifluorene-based <strong>SFAF</strong> HTL to develop blue PhOLEDs with high efficiency and extended operational lifetime. The spiro-bifluorene unit imparts enhanced thermal stability to the <strong>SFAF</strong> molecular structure. Further, careful management of the thickness of <strong>SFAF</strong> HTL fosters a charge balance in the emitting layer and subsequently strengthens the performance of the fabricated devices. The fabricated devices emit in the blue region, achieving an EQE<sub>max</sub> nearing 20 %, and demonstrated excellent resistance to efficiency roll-off at higher luminance. Interestingly, the operational lifetime up to 95 % of the initial luminance (LT<sub>95</sub>) of the <strong>SFAF</strong> devices measured at 1000 cd/m<sup>2</sup> brightness was more than double compared to that of the reference device fabricated using <strong>BCFN</strong> as HTL, which has a structure similar to the <strong>SFAF</strong> without the spiro group. The study suggests that the spiro-bifluorene-based HTLs can be excellent candidates for developing blue phosphorescent OLEDs with higher efficiency and longer operational lifetime.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"144 ","pages":"Article 107263"},"PeriodicalIF":2.7,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing efficiency and stability of ternary polymer solar cells by employing donor dilution and layer-by-layer fabrication techniques 利用供体稀释和逐层制造技术提高三元聚合物太阳能电池的效率和稳定性

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-05-06 DOI: 10.1016/j.orgel.2025.107262

Yifan Yang , Qiao Wang , Yufa Hou , Chen Yang , Wenfei Shen , Jianguo Tang

{"title":"Enhancing efficiency and stability of ternary polymer solar cells by employing donor dilution and layer-by-layer fabrication techniques","authors":"Yifan Yang , Qiao Wang , Yufa Hou , Chen Yang , Wenfei Shen , Jianguo Tang","doi":"10.1016/j.orgel.2025.107262","DOIUrl":"10.1016/j.orgel.2025.107262","url":null,"abstract":"<div><div>Optimizing the morphology of the active layer is crucial for enhancing the power conversion efficiency (PCE) of polymer solar cells (PSCs), a key objective in organic photovoltaic research. In this study, we achieved significant improvements in active layer morphology by employing a synergistic combination of the sequential deposition method and the donor dilution strategy. In addition, a small amount of molecular acceptor was introduced as a third component into the donor layer, it was proved that the third component facilitated downward penetration of the upper layer of acceptor materials and establishing a gradient distribution of the donor-acceptor interface along the vertical direction, which enhanced both the utilization and transport efficiency of charge carriers. Moreover, the presence of the third component partially suppressed the formation of pure donor phases, further enhancing exciton dissociation and increasing charge collection efficiency. As a result, the short-circuit current density (<em>J</em><sub><em>sc</em></sub>), fill factor (<em>FF</em>), and open-circuit voltage (<em>V</em><sub><em>oc</em></sub>) of the PBQx-TF: L8-BO/BTP-eC9-based PSCs were significantly improved, and ultimately resulting in PCEs surpassding 18 %. Therefore, this work presents a valuable strategy for fabricating high-performance PSCs, offering insights into optimizing active layer morphology for improved photovoltaic performance.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"144 ","pages":"Article 107262"},"PeriodicalIF":2.7,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stretchable, flexible, transparent PEDOT:PSS electrodes by doping strategy 可拉伸，柔性，透明PEDOT:PSS电极掺杂策略

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-04-24 DOI: 10.1016/j.orgel.2025.107260

Xianchun Chen, Junjie Liu, Haoran Zhu, Longzhen Qiu, Xiaohong Wang

{"title":"Stretchable, flexible, transparent PEDOT:PSS electrodes by doping strategy","authors":"Xianchun Chen, Junjie Liu, Haoran Zhu, Longzhen Qiu, Xiaohong Wang","doi":"10.1016/j.orgel.2025.107260","DOIUrl":"10.1016/j.orgel.2025.107260","url":null,"abstract":"<div><div>Flexible transparent electrodes (FTEs) have been widely used in the field of flexible optoelectronic devices due to their simultaneous conductivity and optical transmittance. However, traditional fabrication methods often struggle to achieve an optimal balance between high conductivity and flexibility, and may also involve high costs and complex processes. Consequently, developing a cost-effective strategy for the large-scale production of high-performance FTEs is crucial. Here, high-performance poly(3,4-ethylenedioxythiophene):poly(styrenesulfonic acid) (PEDOT:PSS) spray-coated FTEs were prepared by optimizing the PEDOT:PSS conductive ink formulation through doping strategies. The PEDOT:PSS FTEs exhibit a surface resistance of 70 Ω/sq and a transmittance of 80 % at 550 nm. Notably, their optoelectronic properties remain stable after 100 bends, continuous illumination at 2.43 mW/cm<sup>2</sup>, and exposure to 90 % relative humidity. In addition, large-scale FTEs (15 × 15 cm) were successfully produced using the spray-coating method and effectively implemented in flexible touch screens. These results show that optimized conductive ink formulations have great potential for the preparation of low-cost, large-area and uniform FTEs.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"143 ","pages":"Article 107260"},"PeriodicalIF":2.7,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seed crystal layer-assisted growth of CsPbBr3 perovskite film via electro-spray deposition for sensitive direct X-ray detection 电喷雾沉积法制备CsPbBr3钙钛矿薄膜，用于灵敏的直接x射线检测

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-04-24 DOI: 10.1016/j.orgel.2025.107261

Haomiao Li , Bo Jiao , Mengxin Yan , Zhihang Zhang , Zubair Maroof , Hanxiao Peng , Dongdong Wang , Guijiang Zhou , Zhaoxin Wu , Xun Hou

{"title":"Seed crystal layer-assisted growth of CsPbBr3 perovskite film via electro-spray deposition for sensitive direct X-ray detection","authors":"Haomiao Li , Bo Jiao , Mengxin Yan , Zhihang Zhang , Zubair Maroof , Hanxiao Peng , Dongdong Wang , Guijiang Zhou , Zhaoxin Wu , Xun Hou","doi":"10.1016/j.orgel.2025.107261","DOIUrl":"10.1016/j.orgel.2025.107261","url":null,"abstract":"<div><div>Highly sensitive X-ray detectors play a critical role in various sectors, including medicine, crystallography, and national security. Semiconductor-based direct X-ray detectors have the potential to become the next generation of detectors due to their superior advantages compared to existing detectors. Notably, perovskite materials, renowned for their exceptional performance in the photovoltaic field, could be utilized in the development of novel X-ray detectors with high sensitivity and low detection limits. However, challenges remain in thick film deposition techniques such as inadequate film uniformity, elevated processing temperatures, and limited scalability. In this study, we present an improved E-spray process incorporating a seed crystal layer for achieving high-quality CsPbBr<sub>3</sub> thick film deposition. The incorporation of a seed crystal layer effectively mitigates the coffee-ring effect by depinning the triple-phase contact line of precursor solution droplets, while also promoting oriented growth of the thick CsPbBr<sub>3</sub> film. Furthermore, we demonstrate a direct X-ray detector with remarkable sensitivity (13561.56 μC Gyair<sup>−1</sup> cm<sup>−2</sup> at 5 V) and an impressively low detection limit (0.052 μGys<sup>−1</sup>). We anticipate that these results will stimulate interest in this field and facilitate advancements in perovskite-based detector technology.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"143 ","pages":"Article 107261"},"PeriodicalIF":2.7,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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

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

{"title":"Boosting the performance of triple-cation perovskite solar cells through 2-phenylethanethiol treatment and green anti-solvent","authors":"Ali L. Abed , Mustafa K.A. Mohammed , Sadeer M. Majeed , Raid A. Ismail , Duha S. Ahmed , Mika Sillanpää","doi":"10.1016/j.orgel.2025.107254","DOIUrl":"10.1016/j.orgel.2025.107254","url":null,"abstract":"<div><div>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 Pb<sup>2+</sup> 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 %.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"143 ","pages":"Article 107254"},"PeriodicalIF":2.7,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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

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

{"title":"A study of the synaptic memory behavior of a flour-based flexible memristor","authors":"Kekang Ma, Gan Li, Hao Wu, Xiaolei Chang, Mengran Wu, Ling Wei","doi":"10.1016/j.orgel.2025.107255","DOIUrl":"10.1016/j.orgel.2025.107255","url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"143 ","pages":"Article 107255"},"PeriodicalIF":2.7,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0