Organic Electronics最新文献

Effects of thin metal/metal oxide composite modification layer on ITO anode in organic light-emitting diodes 薄金属/金属氧化物复合改性层对有机发光二极管ITO阳极的影响

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-07-23 DOI: 10.1016/j.orgel.2025.107294

Jing Yi , Ruiting Zhang , Yanfeng Dai , Dongge Ma

{"title":"Effects of thin metal/metal oxide composite modification layer on ITO anode in organic light-emitting diodes","authors":"Jing Yi , Ruiting Zhang , Yanfeng Dai , Dongge Ma","doi":"10.1016/j.orgel.2025.107294","DOIUrl":"10.1016/j.orgel.2025.107294","url":null,"abstract":"<div><div>The effects of thin metal film gold or silver (Au and Ag) combined with transition metal oxides (TMOs) V<sub>2</sub>O<sub>5</sub> and MoO<sub>3</sub> used as composite modification layer on ITO anode in organic light-emitting diodes (OLEDs) were investigated and compared. It was found that incorporating the thin metal film (Au or Ag) with V<sub>2</sub>O<sub>5</sub> (MoO<sub>3</sub>) modification layer facilitates to improve the hole injection into the hole transport layer (HTL), thereby enhancing the performance of OLEDs. The device with V<sub>2</sub>O<sub>5</sub> -modified thin metal film on ITO exhibited higher electroluminescent (EL) efficiency compared to that with MoO<sub>3</sub>-modified thin metal film. Specifically, the device with the structure ITO/Au (0.5 nm)/V<sub>2</sub>O<sub>5</sub> (1 nm) achieved a current efficiency of 96 cd/A. The ultraviolet photoelectron spectroscopy (UPS) investigation revealed that ITO/thin metal/V<sub>2</sub>O<sub>5</sub> structure has a higher work function than ITO/thin metal/MoO<sub>3</sub>, which contributes to the improved hole injection.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"145 ","pages":"Article 107294"},"PeriodicalIF":2.7,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144696968","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

Mem-capacitance enabled volatile switching in Dopamine@Agarose-based devices Dopamine@Agarose-based器件中memo电容使能的易失性开关

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-07-19 DOI: 10.1016/j.orgel.2025.107305

Swarali K. Joshi , Trishala Desai , Kasturi A. Rokade , Omkar Y. Pawar , Omkar A. Patil , Akash V. Fulari , Sunil S. Nirmale , Rajanish K. Kamat , Chitra Gurnani , Sooman Lim , Tukaram D. Dongale

{"title":"Mem-capacitance enabled volatile switching in Dopamine@Agarose-based devices","authors":"Swarali K. Joshi , Trishala Desai , Kasturi A. Rokade , Omkar Y. Pawar , Omkar A. Patil , Akash V. Fulari , Sunil S. Nirmale , Rajanish K. Kamat , Chitra Gurnani , Sooman Lim , Tukaram D. Dongale","doi":"10.1016/j.orgel.2025.107305","DOIUrl":"10.1016/j.orgel.2025.107305","url":null,"abstract":"<div><div>The development of biocompatible, environmentally friendly, and low-cost functional switching materials for memory and synaptic learning devices has gained importance in recent years. Dopamine is a naturally occurring biomaterial that has been used in various fields. In the present study, dopamine@agarose was used as a switching layer, sandwiched between Ag top and FTO bottom electrodes to form the Ag/dopamine@agarose/FTO device. The agarose was utilized due to its natural polymeric properties and its functionality as a binder. The switching layer was characterized using UV–vis spectroscopy, Fourier transform infrared spectroscopy, atomic force microscopy, and field emission scanning electron microscopy. The non-pinched hysteresis curve revealed the mem-capacitive behaviour of the device, which was corroborated using electrochemical and frequency-dependent capacitance-voltage studies. The charge-flux properties depicted the non-ideal memristor nature of the device. Furthermore, the cumulative probability and Weibull distribution were studied to understand the switching variability. The fabricated device demonstrates a stable multilevel volatile memory effect over 15000 cycles. The results assert that dopamine can be a potential candidate for developing sustainable volatile memory devices.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"145 ","pages":"Article 107305"},"PeriodicalIF":2.7,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687137","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

The role of terpineol additive in poly(3-hexylthiophene) films for enhanced performance of electrolyte gated transistors 松油醇添加剂在聚（3-己基噻吩）薄膜中对提高电解质门控晶体管性能的作用

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-07-19 DOI: 10.1016/j.orgel.2025.107306

Minso Kim, Sojin Lee, Kihyon Hong

{"title":"The role of terpineol additive in poly(3-hexylthiophene) films for enhanced performance of electrolyte gated transistors","authors":"Minso Kim, Sojin Lee, Kihyon Hong","doi":"10.1016/j.orgel.2025.107306","DOIUrl":"10.1016/j.orgel.2025.107306","url":null,"abstract":"<div><div>Solution-processed electrolyte-gated transistors (EGTs) offer several advantages, including low operating voltage, high drain current levels, and versatile processability. For EGTs utilizing polymer semiconductors, the device's electrical properties are significantly influenced by the surface morphology and microstructure of the polymer film. One way to improve the film properties is employing solvent additive to polymer precursor solution. Terpineol has been a widely used additive in poly (3-hexylthiophene) (P3HT) precursor solution. In this work, we systematically investigated the effect of terpineol additive on P3HT film morphology and electrical performance of EGTs. The P3HT film, formed via spin-coating from this modified precursor solution, exhibited a dense and continuous morphology. Transistors fabricated with this solvent additive demonstrated improved electrical performance, with mobility increasing from 1.22 to 1.62 cm<sup>2</sup>V<sup>−1</sup>s<sup>−1</sup> for a 1.54 % additive content. This investigation provides insights into the influence of high boiling point additives on the morphology of polymer semiconductor films and serves as a guide to aid in the use of such additives within EGTs and other electrical devices.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"145 ","pages":"Article 107306"},"PeriodicalIF":2.7,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144696965","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

Prediction of UV/visible absorption maxima of organic compounds in dichloromethane and database generation of organic compounds with red-shifted absorption maxima 有机化合物在二氯甲烷中紫外/可见光吸收最大值的预测及红移吸收最大值有机化合物的数据库生成

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-07-19 DOI: 10.1016/j.orgel.2025.107304

Talal M. Althagafi , Mudassir Hussain Tahir , Sumaira Naeem , Fatimah Mohammed A. Alzahrani , M.S. Al-Buriahi

引用次数: 0

Hydroxylamine additive enabled interface trap reduction for enhanced fullerene-based n-type organic transistors 羟胺添加剂使增强富勒烯基n型有机晶体管的界面陷阱减少

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-07-11 DOI: 10.1016/j.orgel.2025.107302

Benjamin Nketia-Yawson, Jea Woong Jo

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One-step Co-fabrication of tripod self-organized hole transport and perovskite layers for perovskite solar cells 钙钛矿太阳能电池三脚架自组织空穴输运与钙钛矿层的一步共制

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-07-09 DOI: 10.1016/j.orgel.2025.107296

Daiki Tomita, Ryo Ishikawa

{"title":"One-step Co-fabrication of tripod self-organized hole transport and perovskite layers for perovskite solar cells","authors":"Daiki Tomita, Ryo Ishikawa","doi":"10.1016/j.orgel.2025.107296","DOIUrl":"10.1016/j.orgel.2025.107296","url":null,"abstract":"<div><div>The use of self-assembled materials (SAM) in the hole transport layer (HTL) of inverted (p-i-n) perovskite solar cells (PSCs) has been a subject of growing interest. This is mainly due to their ability to achieve high HTL coverage with minimal film thickness, even on rough substrates, and to reduce the perovskite interface energy barrier. However, a common issue is a reduction in perovskite layer coverage on SAM. A novel one-step simultaneous co-formation of the p-i layer has been proposed to address this, involving the addition of SAM to the perovskite precursor solution.</div><div>This investigation explores the morphology and the physical properties of perovskite thin films produced using the one-step formation of the p-i layer without antisolvent, with the recently developed multipodal molecule[[5H-diindolo[3,2-a:3′,2′-c]carbazole-5,10,15-triyl]tris(propane-3,1-diyl)] trisphosphonic acid(3PATAT-C3), which exhibits a face-on molecular orientation. Results demonstrated that introducing 3PATAT-C3 into the perovskite precursor solution yielded improvements in passivation and promoted charge extraction.</div><div>The PSCs utilizing the one-step p-i co-deposition exhibited a remarkable power conversion efficiency (PCE) of 21.4 % and a fill factor of 78.7 %. These results outperformed the reference devices fabricated by depositing perovskite on SAM. Furthermore, statistical analyses indicate that hysteresis in current density–voltage curves has been reduced. These outcomes suggest that the one-step p-i co-deposition technique matches and potentially surpasses the performance of traditionally manufactured cells. Moreover, it achieves this with fewer fabrication steps, thereby representing a substantial advancement toward its commercial viability, instilling hope for the future of solar cell technology.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"145 ","pages":"Article 107296"},"PeriodicalIF":2.7,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632985","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

Correlation between charge-carrier distribution and local crystallinity in organic films 有机薄膜中载流子分布与局部结晶度的关系

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-07-05 DOI: 10.1016/j.orgel.2025.107295

Jiaqiang Zhu , Yubo Geng , Ying Han , Haoyuan Li

{"title":"Correlation between charge-carrier distribution and local crystallinity in organic films","authors":"Jiaqiang Zhu , Yubo Geng , Ying Han , Haoyuan Li","doi":"10.1016/j.orgel.2025.107295","DOIUrl":"10.1016/j.orgel.2025.107295","url":null,"abstract":"<div><div>Understanding charge transport in organic semiconductor films is essential for optimizing organic electronic devices. Organic films often exhibit complex morphologies, consisting of crystalline and amorphous phases, which significantly affect charge carrier distribution and transport. Moreover, film morphologies evolve under operational conditions, especially in flexible devices that are subjected to mechanical stress. Here, we investigated the relationship between charge-carrier distribution and film morphology in organic films based on device-level simulations. A Monte Carlo method for morphology generation and master equation simulations were employed to obtain steady-state charge-carrier densities. Our results showed a strong correlation between local charge density and local crystallinity near the injecting electrode in hole-only devices. However, this correlation diminishes between the electrodes and near the collecting electrode. Additionally, the strength of the correlation is dependent on the grain size, the observation length, the energy-level difference between phases, and the applied voltage; these phenomena revealed the detailed features of nonuniform charge-transport pathways in organic films. These findings provide insights into the relationship between film morphology and charge transport, informing the optimization of organic electronic devices, particularly flexible ones that operate under mechanical stress.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"144 ","pages":"Article 107295"},"PeriodicalIF":2.7,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572696","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

Machine learning assisted designing of phenothiazine and phenoxazine-based dyes. Database generation and property prediction 机器学习辅助设计吩噻嗪和吩恶嗪基染料。数据库生成和属性预测

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-07-04 DOI: 10.1016/j.orgel.2025.107291

Talal M. Althagafi , Fatimah Mohammed A. Alzahrani , M.S. Al-Buriahi , Asif Mahmood

引用次数: 0

Blue-emitting OLED with a broad spectral profile for phototherapy light source of neonatal jaundice 具有广谱线的蓝光发光有机发光二极管，用于新生儿黄疸的光疗光源

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-07-04 DOI: 10.1016/j.orgel.2025.107292

Hao-Che Kao , Jia-Fan Wu , Jhao-Cheng Lu , Kuan-Hsun Wang , Kuan-Wei Chen , Chia-Chen Chung , Chung-Chih Wu , Chih-Hao Chang

{"title":"Blue-emitting OLED with a broad spectral profile for phototherapy light source of neonatal jaundice","authors":"Hao-Che Kao , Jia-Fan Wu , Jhao-Cheng Lu , Kuan-Hsun Wang , Kuan-Wei Chen , Chia-Chen Chung , Chung-Chih Wu , Chih-Hao Chang","doi":"10.1016/j.orgel.2025.107292","DOIUrl":"10.1016/j.orgel.2025.107292","url":null,"abstract":"<div><div>Neonatal jaundice, caused by bilirubin accumulation due to liver immaturity, requires blue light phototherapy for effective treatment. Conventional LED-based systems are limited by their narrow spectral width, potential thermal hazards, and the requirement to separate infants from caregivers. By integrating pure-blue fluorescent (BCzVBi) and sky-blue phosphorescent (FIrpic) emitters into a tandem organic light-emitting diode (OLED) structure, we developed blue OLEDs with a broad emission spectrum (430–530 nm) that better aligns with the bilirubin absorption band. The devices achieve a sufficient spectral power density (10–30 μW/cm<sup>2</sup>/nm) while maintaining surface temperatures well below 42 °C, making them well-suited for wearable applications. Emission profiles and doping concentrations were optimized to broaden the EL spectra. Thermal tests confirmed stable and safe operation under driving voltages of 13–14 V. The developed tandem OLEDs, featuring both a broad spectrum and high efficiency, represent a promising alternative to conventional LEDs for safer and more effective phototherapy of neonatal jaundice.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"145 ","pages":"Article 107292"},"PeriodicalIF":2.7,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144588200","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

Multifunctional organic synaptic transistors for tissue-equivalent dosimetry 用于组织等效剂量测定的多功能有机突触晶体管

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-07-03 DOI: 10.1016/j.orgel.2025.107293

Somnath Bhattacharjee , Naresh Jingar , Shree Prakash Tiwari

{"title":"Multifunctional organic synaptic transistors for tissue-equivalent dosimetry","authors":"Somnath Bhattacharjee , Naresh Jingar , Shree Prakash Tiwari","doi":"10.1016/j.orgel.2025.107293","DOIUrl":"10.1016/j.orgel.2025.107293","url":null,"abstract":"<div><div>Pervading the modern electronics landscape, organic synaptic transistors (OSTs) have emerged as a forefront device candidate for advancement in artificial intelligence (AI) systems. This paper reports OSTs as highly sensitive dosimeters which also emulate human tissue properties and cognitive functions. Fabricated OSTs exhibit excellent p-channel transistor characteristics with field-effect mobility of 0.21 (±0.03) cm<sup>2</sup>V<sup>−1</sup>s<sup>−1</sup> and on-off current ratio on the order of 10<sup>3</sup> for −10 V operation. The OSTs demonstrate short-term plasticity (STP) through behaviors such as pulse paired facilitation (PPF) and spike number dependent plasticity (SNDP). Notably, the relaxation time constants derived from PPF behavior, combined with an energy consumption per stimuli of ∼10 pJ, closely mimic those observed in human synapses. Moreover, by integrating the synaptic weights derived from the fabricated devices, artificial neural network (ANN) achieves a handwritten digit recognition accuracy exceeding 99.4 %. These OSTs exhibit negligible changes in on current and mobility after being irradiated, but a linearly varying shift in threshold voltage, suitable for detecting γ-radiation exposure. An impressive sensitivity (∼5 mV/rad) to γ-radiation exposure under radiation amount similar to the values used for treatment of tumors. Our results indicate that these flexible OSTs have the potential to be utilized as smart and intelligent radiation sensors for applications such as medical imaging, radiation therapy, and portable dosimeters for emergency responders and armed forces.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"144 ","pages":"Article 107293"},"PeriodicalIF":2.7,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571160","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