SENSORS AND ACTUATORS B-CHEMICAL
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2023
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IF 8.4
Jianchun Jiang,Qingmeng Pi,Jiahang Zhou,Yixuan Du,Yunbo Li
Ammonia is increasingly deemed a significant, green sustainable fuel which requires a large number of detection devices. In this study, ultrathin AuNWs/PEDOT:PSS Janus films had been prepared with ultrathin AuNWs film treated with H 2 S which could integrate with PEDOT:PSS film closely. The resulting transparent and flexible Janus film sensor showed the good response and selectivity performance to ammonia gas. Moreover, the sensitivity of Janus film devices to ammonia was greatly improved and the conductivity of the Janus films was kept well with increasing thermal annealing temperature. The limit detection for NH 3 was 500 ppb concentration and the improvement mechanism of the sensing performance was attributed to the increased surface area of conductive polymer . This method provides a universal platform to integrate different materials into Janus films and prepare next-generation flexible detection sensors.
研究领域:
材料科学
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传感技术
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化学工程
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产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2019
·Vol. 8
·期 5
·1796-1802
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IF 6.641
Zhiyuan Wang,Long Gao,Xiaozhen Wei,Min Zhao,Yanqin Miao,Xuefeng Zhang,Haixia Zhang,Hua Wang,Yuying Hao,Bingshe Xu,Junjie Guo
Efficient hole injection layers (HILs) are crucial for organic light emitting diodes (OLEDs) to achieve high performance. In this work, we report that doping PEDOT:PSS with semi-conductive antimonene quantum sheets (AMQSs) can effectively adjust the work function from −5.2 eV to −4.9 eV, and it exhibits a significantly higher hole injection performance and transmittance than those of the pure PEDOT:PSS layer. Consequently, the Ir(ppy)3-based green OLEDs adopting PEDOT:PSS:AMQSs as the HIL show a lower turn-on voltage of 3.0 V and achieve a dramatically higher device efficiency. Particularly, the optimized AMQS-based OLED realizes the maximum current efficiency (CE), power efficiency (PE) and external quantum efficiency (EQE) of 69.88 cd A−1, 48.28 lm W−1 and 19.91%, respectively, which are 14.86%, 68.99% and 13.32% higher than those of the reference device. The remarkable improvements are mainly ascribed to the two-dimensional electronic structure of AMQSs, which enhances the hole injection, transport capability, and boosts the light extraction efficiency. These findings point out a novel strategy to develop high-performance OLEDs by using two-dimensional quantum sheets.
研究领域:
材料科学
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光电器件
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纳米技术
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DOI
高影响因子
SOLAR ENERGY
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2019
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IF 4.674
Yu Zhu,Shuo Wang,Ruixin Ma,Chengyan Wang
The power conversion efficiency (PCE) reported for the inverted perovskite solar cells (PSCs) is still less than that of the regular structure, and low open circuit voltage (V oc ) is one of the crucial problems for achieving high PCE in inverted PSCs. In this study, a new modification strategy was developed by doping poly (3,4-ethylenedioxythiophene)-poly-(styrene sulfonate) (PEDOT: PSS) with the cetyl trimethyl ammonium bromide (CTAB) to passivate the bottom of perovskite layer and enhance properties of PEDOT:PSS. The work function of PEDOT: PSS was altered from −4.18 to −4.21 eV, the Fermi level of CTAB-doped PEDOT:PSS better fitted to the valence band of perovskite layer, thereby leading to a higher build-in voltage. As a result, the V oc increased by 70 mV, up to 0.90 V and the PCE of the device increased from 10.21% to 12.53%. Furthermore, the device based on CTAB-doped PEDOT:PSS still retained over 75% of the initial PCE after exposing the device in the ambient condition (20–40% humidity, 10–30 ℃) for 30 days.
研究领域:
材料科学
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能源科学
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
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IF 9.5
Linrong Zhang,Li Wang,Shunhao He,Chengcheng Zhu,Zhongyan Gong,Yulong Zhang,Junjie Wang,Liuyingzi Yu,Kun Gao,Xing Kang,Yaxin Song,Gang Lu,Hai-Dong Yu
Organic electrochemical transistors (OECTs), particularly the ones based on PEDOT:PSS, are excellent candidates for chemical and biological sensing because of their unique advantages. Improving the sensitivity and stability of OECTs is crucially important for practical applications. Herein, the transconductance of OECT is improved by 8-fold to 14.9 mS by doping the PEDOT:PSS channel with plasmonic gold nanoparticles (AuNPs) using a solution-based process followed by photo annealing. In addition, the OECT also possesses high flexibility and cyclic stability. It is revealed that the doping of AuNPs increases the conductivity of PEDOT:PSS and the photo annealing improves the crystallinity of the PEDOT:PSS channel and the interaction between AuNPs and PEDOT:PSS. These changes lead to the increase in transconductance and cyclic stability. The prepared OECTs are also demonstrated to be effective in sensitive detection of glucose within a wide concentration range of 10 nM–1 mM. Our OECTs based on photo-annealed plasmonic AuNP-doped PEDOT:PSS may find great applications in chemical and biological sensing, and this strategy may be extended to prepare many other high-performance OECT-based devices.
研究领域:
材料科学
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生物传感
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化学工程
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产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry C
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2020
·Vol. 8
·期 12
·4169-4180
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IF 7.059
Chunli Hou,Huangzhong Yu
Two-dimensional (2D) transition metal carbides, MXenes, typically represented by Ti3C2TX, have shown great promise in optoelectronic devices due to their metallic electrical conductivity, large surface area, superior hydrophilicity and excellent transparency. Herein, to improve the conductivity of polymer poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) films, we incorporate solution-processable 2D Ti3C2TX nanosheets into PEDOT:PSS to fabricate PEDOT:PSS/Ti3C2TX composite layers, and polymer solar cells (PSCs) with PEDOT:PSS/Ti3C2TX composite films as hole transport layers (HTLs) are fabricated for the first time. The nanostructures and the corresponding hole injection properties of PEDOT:PSS/Ti3C2TX composite layers are systematically evaluated. Based on the non-fullerene PBDB-T:ITIC system, a power conversion efficiency (PCE) of 11.02% is obtained for the device with PEDOT:PSS/Ti3C2TX as the HTL, which is improved by 13.5% compared to that of the control device with pure PEDOT:PSS as the HTL (9.72%). When using the PM6:Y6 system as the active layer, the PCE of the device based on PEDOT:PSS/Ti3C2TX is improved to 14.55% from 13.10% for the PEDOT:PSS reference device. 2D Ti3C2TX nanoflakes with higher conductivity construct additional charge transfer pathways between the PEDOT nanocrystals and induce conformational transition of PEDOT from a coil to a linear/expanded-coil structure, leading to an improvement in conductivity and device performance. Interestingly, PEDOT:PSS/Ti3C2TX based devices also exhibit enhanced long-term stability compared to PEDOT:PSS based devices. These results show that PEDOT:PSS/Ti3C2TX composite films have a promising prospect in high efficiency organic optoelectronics.
研究领域:
材料科学
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光电材料
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纳米技术
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产品关联
DOI
高影响因子
CARBON
·
2021
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IF 9.594
Weili Teng,Qinqin Zhou,Xuekai Wang,Junyan Gao,Peng Hu,Yucheng Du,Hongyi Li,Jinshu Wang
Enhancing the specific capacitance and rate performance of graphene based fiber-shaped supercapacitors (FSSCs) is critical to achieving advanced energy storage devices with desired performance. Here, hierarchically porous reduced graphene oxide/poly (3,4-ethylenedioxythiophene):poly (4-styrenesulfonate) (rGO/PEDOT:PSS) hybrid fiber was constructed by co-assembling confined growth and acid treatment strategy. The rationally designed hybrid fiber addressed the issues of excellent conductivity and abundant porous channels for fast electrons transfer and rapid ions diffusion. As indicated, highly-oxidized small-sized GO precursor was utilized to endow rGO fiber with abundant ions diffusion channels and ions adsorption interfaces for double-layer capacitance, as well as ample oxygen functional groups for additional pseudocapacitance . The incorporation of acid-treated PEDOT:PSS also prevents the stacking of rGO sheets, improves the electrical conductivity and provides partial capacitance. Attributed to the synergy, the obtained hybrid fiber exhibits remarkably improved performance in FSSC with volumetric/areal specific capacitance of 226.5 F cm −3 /279.3 mF cm −2 at 0.5 A cm −3 and rate performance of 74.7% capacitance retention at 50 A cm −3 , which is much superior to the counterpart of previously-reported FSSC devices. Meanwhile, the resultant FSSC device also exhibits superb electrochemical stability (91%, 10000 cycles), holding a great application prospect in wearable electronics .
研究领域:
材料科学
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能源存储
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
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IF 13.3
Caihong Lv,Xin Zhou,Cheng Chen,Xinghai Liu,Jun Qian
Ammonia serves as a crucial indicator of food spoilage, but current sensors lack sufficient sensitivity, stability, selectivity, and automation for practical on-site and real-time monitoring. A highly sensitive and flexible ammonia sensor based on PEDOT:PSS doped with Lewis acid (FeCl 3 solution) for wireless food monitoring is proposed in this study to solve the above limitations. The intercalation effect caused by the diffusion of Fe 3+ and hydrolyzed H + in the film coordinating with SO 3 − groups present in PSS chains leads to an increased distance between adjacent PEDOT-rich domains. It enhances ammonia sensitivity by providing additional ionic carriers and carrier transport paths within the PEDOT:PSS molecule. The results demonstrated a significant enhancement in the sensitivity of PEDOT:PSS sensor doped with FeCl 3 , exhibiting a response value of about 25 % at 25 ℃ for 1 ppm NH 3 , with an impressive detection limit of 0.23 ppm and quantification limit of 0.78 ppm (1–400 ppm). Moreover, it showcases acceptable repeatability both at 1 ppm (RSD = 4.30 %) and 100 ppm ammonia (RSD = 3.61 %), along with the notable selectivity and long-term stability. XPS, Raman analysis, and the density function theory (DFT) calculations further elucidated the sensing mechanism of the sensor towards ammonia. Additionally, a portable wireless detection device was designed, which was equipped with the Bluetooth communication and the micro-controller system to detect the decay process of fresh shrimp, realizing wirelessly real-time monitoring of food freshness through a smart phone. It’s worth noting that the innovative sensing technology holds great promise for food quality monitoring.
研究领域:
食品科学
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材料科学
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传感技术
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产品关联
DOI
高影响因子
JOURNAL OF POLYMER SCIENCE
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2024
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IF 3.9
Siying An,Ling Zhu,Shuai Chen,Xiaowen Xie,Mingna Yang,Meng Zhou,Yongluo Qiao
Film electronic materials capable of bionic self-healing have urgent research value in view of the widespread need of extending device life, maintaining operation safety, and reducing renewal costs. Thermal-driven self-healing is a dominant strategy to fit the practical film applications of one of the most famous solution-processible conducting polymers (CPs), poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS). Here, disulfide bonding embedded thermoplastic polyurethane (PU-SS) was developed to endow their composites with PEDOT:PSS with great aqueous system compatibility, stability, film formation capability as well as recyclable capability, with help of triethylamine (TEA)-assisted pH control (6.5 ± 1.0 at 25°C, weakening the adverse effects of strong acidity of PEDOT:PSS aqueous system itself). The scratched PEDOT:PSS(TEA)/PU-SS films (10.121 ~ 7.629 μm cracks) under optimized the ingredient proportion exhibited excellent synergistic self-healing capability of morphology and electrical properties (approximately 1.35 × 10 −4 S/cm) even under spin-coated thickness (20 ± 10 μm) and 25°C within 10 min. Drop-coated flexible film (120 ± 20 μm thickness) showed high tensile strength with above 400% stretched length compared to that of PEDOT:PSS film (< 10%). Excellent water-resistance (immersing > 7 days), strengthened substrate adhesion and electrochromic behavior (from light blue [−1.3 V] to white [1.2 V]) were realized. These comprehensive features can be reproduced for recyclable films on the basis of isopropanol (IPA) redispersion. Flexible electrochromic devices employing such film as the active layer exhibited high optical contrast (Δ T ) values up to 52.07%, fast response time (2.10/3.70 s), as well as excellent coloring efficiency (198.02 cm 2 C −1 ) and cycling stability. This research is expected to promote the promising applications of PEDOT:PSS based electronic materials from traditional fields to flexible or stretchable devices and even hydrogel bioelectronics. Graphical Low-heat-driven intrinsic and fast self-healing photoelectronic films with synergetic water-resistance, substrate adhesion, stretchability and solution-processable recyclability.
研究领域:
材料科学
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电子工程
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产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Siyu Fang,Xinyi Zhou,Luoyan Lin,Lu Fang,Hongying Liu,Bo Liang
Diabetes mellitus is a significant global chronic endocrine and metabolic disorder that affects millions of individuals worldwide. Accurate measurement of glucose levels in patients is of paramount importance. This study presents the development of a flexible and conductive paper-based (FCPAD) electrode composed of PEDOT:PSS and platinum nanohybrids for the electrochemical determination of glucose. The conductivity of the FCPAD electrode was assessed under various bending angles and durations. The findings revealed that the conductivity of the FCPAD electrode remained largely stable after exposure to bending at 180 degrees and after 1200 bending cycles. Additionally, the electrode demonstrated long-term stability, maintaining its conductivity for over 30 days. Platinum nanoparticles (PtNPs) and glucose oxidase (GOx) were immobilized on the FCPAD electrode to fabricate a GOx/PtNPs/FCPAD glucose sensor. The electrochemical behavior and detection performance of the GOx/PtNPs/FCPAD glucose sensor were subsequently evaluated. This glucose electrode exhibited a high sensitivity of 21.17 µA mM −1 (equivalent to 1058 μA mM −1 cm −2 ), along with a broad detection range of 0.02 to 5 mM, and a limit of detection of 2.7 µM. Moreover, the sensor exhibited exceptional repeatability, robustness against interference, and consistent stability throughout subsequent evaluations. It was effectively utilized for the quantitative analysis of glucose in both artificial sweat and artificial urine. The GOx/PtNPs/FCPAD electrode is expected to be employed in wearable flexible electrochemical sensors for the real-time monitoring of glucose concentrations in sweat.
研究领域:
生物医学工程
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分析化学
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产品关联
DOI
高影响因子
POLYMER
·
2024
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IF 4.1
Siqi Zhang,Shu Wu,Qi Wang,Mengxiang Guan,Bowen Yang,Guirong Peng,Xiaojia Zhao
P(VDF-HFP) is widely used in transistors, electret and artificial skin due to its excellent dielectric properties . In order to dramatically improve its dielectric constant, conductive fillers are used for doping, but the compatibility is not optimistic between the fillers and the PVDF . In this paper, PEDOT:PSS/P(VDF-HFP) all-organic films with interpenetrating network structure were prepared by the addition of H 2 O. The dielectric constant of the film with 0.5 wt % PEDOT:PSS reached up to 323 and the tanδ was only 0.48 (1 k Hz, 18 °C). The addition of the H 2 O made the small amount of PEDOT:PSS evenly distribute in the P(VDF-HFP), as a result, the percolation threshold decreased. Besides, molecular chains of PEDOT:PSS were overlapped to form a uniform network. This paper provided a novel preparation method for a uniform film with two kinds of matters with different compatibility.
研究领域:
材料科学
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电子工程
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2020
·
IF 7.489
Xuejiao Liu,Jiantao Zai,Asma Iqbal,Ming Chen,Nazakat Ali,Rongrong Qi,Xuefeng Qian
Developing conductive polymer binders is a new way to enhance the electric connectivity and mechanical contact of Si based anode material. While the linear structure of commercial PEDOT:PSS cannot effectively alleviate the volume expansion of Si. Herein, glycerol was introduced as a cross-linker to PEDOT:PSS binder for Si anodes, which can further improve the interfacial compatibility between silicon and PEDOT:PSS. After crosslinking, the peel force increased 2 times. As a result, the Si nanoparticles anode with the glycerol-crosslinked binder exhibited a high reversible capacity of 1951.5 mAh g −1 after 200 cycles at 0.5 A g −1 and superior rate capability (804 mAh g −1 at a high current of 8.0 A g −1 ) for the inherent superior conductivity of PEDOT:PSS.
研究领域:
材料科学
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电化学
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产品关联
DOI
PubMed
高影响因子
Energy Technology
·
2021
·Vol. 9
·期 11
·2100595
·
IF 3.631
Rongjiang Wen,Huihui Huang,Juanyong Wan,Shuangchun Wen,Jinzhao Wang,Xi Fan
Strong acid treatment is regarded as the most effective approach to increase the electrical conductivity of poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) electrodes. However, the conventional soaking treatments of strong acids have drawbacks, including limited flexibility of PEDOT:PSS electrodes coated on thermoplastic underlying substrates, high preparation cost with large acid consumption, and moderate stability of flexible organic solar cells (OSCs). Herein, a unique and cost-effective fumigation treatment using trifluoromethanesulfonic acid (CF 3 SO 3 H) vapors is proposed. The CF 3 SO 3 H fumigation treatment leads to a highly conductive, smooth, homogeneous, and flexible PEDOT:PSS electrode. On the basis of the CF 3 SO 3 H-fumigated PEDOT:PSS electrodes, the inverted flexible OSCs yield a high power conversion efficiency (PCE) of 13.62%. Moreover, the flexible solar cells maintain most (≈91%) of the initial efficiency in long-term storage. This work provides a novel route to make solution-processed flexible OSCs simultaneously have a high PCE and good storage stability.
研究领域:
材料科学
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能源技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）