Organic Electronics最新文献_第3页

Design, synthesis, and photovoltaic performance of regioisomeric D18 – Impact of cross-conjugation on electronic structure and solar cell efficiency 区域异构体D18的设计、合成及光伏性能——交叉共轭对电子结构和太阳能电池效率的影响

IF 2.6 4区工程技术

Organic Electronics Pub Date : 2025-07-26 DOI: 10.1016/j.orgel.2025.107309

Kaat Valkeneers , Laura Leten , Sam Gielen , Tom Cardeynaels , Sigurd Mertens , Jochen Vanderspikken , Ruth Theresia Arwani , Adam Marks , Alberto Salleo , Rachith Shanivarasanthe Nithyananda Kumar , Laurence Lutsen , Koen Vandewal , Wouter Maes

{"title":"Design, synthesis, and photovoltaic performance of regioisomeric D18 – Impact of cross-conjugation on electronic structure and solar cell efficiency","authors":"Kaat Valkeneers , Laura Leten , Sam Gielen , Tom Cardeynaels , Sigurd Mertens , Jochen Vanderspikken , Ruth Theresia Arwani , Adam Marks , Alberto Salleo , Rachith Shanivarasanthe Nithyananda Kumar , Laurence Lutsen , Koen Vandewal , Wouter Maes","doi":"10.1016/j.orgel.2025.107309","DOIUrl":"10.1016/j.orgel.2025.107309","url":null,"abstract":"<div><div>The unrivaled structural tunability of organic semiconductors allows to tailor their chemical and physical properties for distinct optoelectronic applications. This is particularly true for push-pull conjugated polymers, in which the (hetero)aromatic monomers, substituents, and side chains can be readily adapted. On the other hand, the impact of isomerization within the polymer backbone remains poorly explored. Here, a novel structural isomer of the state-of-the-art push-pull copolymer D18 is synthesized. This ‘isoD18’ regioisomer shows significantly different optical and electrochemical properties. Its deeper highest occupied molecular orbital energy level and reduced non-radiative voltage losses afford a higher open-circuit voltage (from 0.86 to 0.92 V) for the resulting polymer solar cells. Unfortunately, this is accompanied by a decrease in the short-circuit current density and fill factor, which can mainly be attributed to the one-order-lower hole mobility of isoD18, in line with its reduced thin-film organization. Although the performance of the devices based on the isomeric derivative turns out to be lower in this case, this study does enhance our insights into the effects of regioisomerism in polymer semiconductors on the resulting optoelectronic material and device features.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"145 ","pages":"Article 107309"},"PeriodicalIF":2.6,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144750227","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

FAPbI3 phase transformation mechanism based on quantum dynamics 基于量子动力学的FAPbI3相变机理

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-07-23 DOI: 10.1016/j.orgel.2025.107307

Yidong Zhao , Zihe Cao , Yi Yang , Xiaolu Chen , Anyu Jiang , Qiang Lu , Bing Zhang

{"title":"FAPbI3 phase transformation mechanism based on quantum dynamics","authors":"Yidong Zhao , Zihe Cao , Yi Yang , Xiaolu Chen , Anyu Jiang , Qiang Lu , Bing Zhang","doi":"10.1016/j.orgel.2025.107307","DOIUrl":"10.1016/j.orgel.2025.107307","url":null,"abstract":"<div><div>The research aims to avoid the transformation of α-FAPbI<sub>3</sub> with favorable photoelectric conversion performance into a non-perovskite δ-phase that completely loses photoactivity. To this end, it is necessary to understand its structural stability under different conditions and the mechanisms underpinning both the phase transformation and associated inhibition. Firstly, Ab Initio Molecular Dynamics (AIMD) is used to explore the evolution of the crystal structure of α-FAPbI<sub>3</sub> across different temperature ranges and space limitations. Results show that space limitation exerts a better inhibitory effect on α-FAPbI<sub>3</sub> phase transformation than increasing the temperature. Then, parameters, including the lattice parameters and unit cell angle, are used to analyze the mechanism underlying the difference in the phase transformation process under different conditions. Finally, it is revealed that space limitation can better maintain the presence of an α-FAPbI<sub>3</sub> phase when compared with an increase in temperature, thus clarifying the reason for the inhibition of such a phase transformation.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"145 ","pages":"Article 107307"},"PeriodicalIF":2.7,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703521","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

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

Highly-efficient TADF OLEDs for photodynamic detection of ovarian and skin tumors 用于卵巢和皮肤肿瘤光动力学检测的高效TADF oled

IF 2.7 4区工程技术

Organic Electronics Pub Date : 2025-07-17 DOI: 10.1016/j.orgel.2025.107303

Rajesh Kumar Tiwari , Sanjay Kumar Sharma , Rajesh Mishra , Mangey Ram Nagar

{"title":"Highly-efficient TADF OLEDs for photodynamic detection of ovarian and skin tumors","authors":"Rajesh Kumar Tiwari , Sanjay Kumar Sharma , Rajesh Mishra , Mangey Ram Nagar","doi":"10.1016/j.orgel.2025.107303","DOIUrl":"10.1016/j.orgel.2025.107303","url":null,"abstract":"<div><div>The early detection of ovarian and skin tumors remains a significant challenge due to the limitations of current imaging techniques in sensitivity, specificity, and accessibility. Photodynamic detection (PDD), employing photosensitizers activated by light to identify malignant tissues, offers a promising non-invasive solution. In this study, we present a novel approach that integrates highly-efficient organic light-emitting diodes (OLEDs) as compact, tunable light sources for photodynamic tumor detection. Unlike conventional systems that rely on inorganic LEDs, OLEDs offer advantages such as mechanical flexibility, wavelength specificity, low operating voltage, and facile integration into wearable or endoscopic devices. Simulation results indicated that the device with emitter doped in host materials shows 28 % higher recombination rate and 31 % higher current density as compared with neat emitter-based OLED. Following these simulations, the solution-processed devices were fabricated using the optimized architecture. The fabricated TADF OLEDs were characterized for their optical and electrical properties, revealing a high external quantum efficiency of 9.0 %, brightness of 6192 cd/m<sup>2</sup>, and power efficiency of 26.7 lm/W, which depicts accurate and precise biomarkers for the detection of non-invasive cancers. This study further demonstrated the potential role of these TADF OLEDs in cancer detection, specifically for identifying ovarian and skin cancer biomarkers, was revealed. A healthy person can be distinguished from an ovarian cancer patient based on the shifter fluorescence produced by their urine and from a skin cancer patient based on the fluorescence transmitted through the skin. These results demonstrate that doped carbazole-based TADF OLED displays higher performance, making them a promising candidate for biomedical applications.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"145 ","pages":"Article 107303"},"PeriodicalIF":2.7,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703520","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

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

引用次数: 0

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