Solar RRL
·
2023
·Vol. 7
·期 24
·2300701
·
IF 7.9
Yingying Deng,Chen Dong,Yuhao Song,Miaosen Yao,Wanlong Wang,Junjie Tong,Gentian Yue,Weifeng Zhang,Furui Tan
Hole-transporting layer (HTL) plays a critical role in determining the device performance of carbon-electrode-based perovskite solar cells (C-PSCs). However, the use of best-performing organic HTL (such as 2,2′,7,7′-tetrakis (N, N-di-p-methoxyphenyl-amine)-9,9′-spirobifluorene [Spiro-OMeTAD] or poly(3-hexylthiophene) [P3HT]) for efficient and stable C-PSCs remains challenging due to the hygroscopic additives, unfavorable band alignments, and corrosive carbon pastes. Herein, the additive-free Spiro-OMeTAD/P3HT composite (denoted as Spiro@P3HT) is employed as HTL to construct the fully ambient solution-processed C-PSCs, and NiO x is used as top HTL/buffer layer that protects P3HT from being corroded by carbon pastes. As compared to pristine P3HT, the incorporation of Spiro-OMeTAD not only smooths the HTL morphology, but also shifts down the highest occupied molecular orbital level, thus forming a more energy-favorable cascade that maximizes hole extraction at the perovskite/HTL interface and minimizes recombination loss. Consequently, the target C-PSCs with optimal Spiro@P3HT composite HTL achieve a champion efficiency of 19%. More importantly, benefiting from the self-sealing protection of hydrophobic Spiro@P3HT HTL and carbon electrode, the target C-PSCs exhibit no noticeable performance degradation after storage in ambient air for 1440 h and continuous operation under illumination for 350 h. In this work, a facile way is provided to develop robust and efficient additive-free HTL toward fully solution-processing high-performance C-PSCs.
研究领域:
材料科学
·
能源技术
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2019
·
IF 5.155
Fei Liu,Thien-Phap Nguyen,Qin Wang,Florian Massuyeau,Yi Dan,Long Jiang
Constructing a conductive interface is crucial for the transfer of photoexcited charges in the photocatalytic heterojunction system. In this study, we introduced Ag into g-C 3 N 4 /P3HT system to construct a conductive interface which benefits for transfer of photoexcited charges between g-C 3 N 4 and P3HT. A series of characterizations were employed to investigate the chemical structure , morphology and optical property of the obtained catalysts. And the photocatalytic activity of the as-prepared g-C 3 N 4 /Ag/P3HT composites were evaluated by the degradation of tetracycline (TC) and methyl orange (MO) aqueous solution under visible light irradiation. Results show that the g-C 3 N 4 /Ag/P3HT exhibits a broad absorption band in the region of 400–700 nm and the photocatalytic activity of g-C 3 N 4 /Ag/P3HT obtains a great improvement comparing with that of g-C 3 N 4 , g-C 3 N 4 /Ag and g-C 3 N 4 /P3HT. In addition, the optimized loading content of P3HT is 0.3 mass% based on g-C 3 N 4 . The enhanced photocatalytic performance is due to the introduction of Ag, which improves the transfer of photoexcited charges between g-C 3 N 4 and P3HT. The active species trapping experiment shows that the main active specie is O 2− . After five recycling experiments, the g-C 3 N 4 /Ag/P3HT shows high stability in the photocatalytic performance.
研究领域:
材料科学
·
环境科学
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2019
·
IF 5.155
Hongjie Zhu,Lingxuan Gong,Zhengkui Li
There is a great need to design a new method for fabricating efficient and cheap Z-scheme photocatalysts. For this reason, we synthesized a novel Z-scheme photocatalyst α-Fe 2 O 3 /P3HT with O-Ti-O charge transfer mediator. The effective compounding of each part was confirmed by different characterization methods. The charge transfer mechanism was confirmed to obey the Z-scheme mechanism by measuring the valence band value and by ESR experiments. Moreover, the Z-scheme mechanism in this system was further discussed based on the observed changes in the chemical structure and the theoretical calculation. Based on the characterization of the optical properties, this novel catalyst exhibited better charge transfer and separation abilities under visible light conditions due to its unique architecture. Additionally, this novel Z-scheme photocatalyst showed enhancement in the bisphenol A degradation effect, the degradation reaction was pseudo-first-order kinetics, a removal rate of up to 90% was maintained after four cycles. The BPA degradation pathway was also discussed in this study. This study provides a new approach for the construction of Z-scheme photocatalysts.
研究领域:
材料科学
·
环境科学
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产品关联
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 81
·77701-77708
·
IF 3.289
Yaxiong Guo,Hongwei Lei,Borui Li,Zhao Chen,Jian Wen,Guang Yang,Guojia Fang
We successfully constructed a heterojunction structure composed of Ag2S nanocrystals/P3HT conjugated polymer with a relatively high absorption coefficient and broader absorption from the ultraviolet to near-infrared region. The assembled P3HT:Ag2S devices exhibited outstanding short-circuit current density around 19 mA cm−2. Meanwhile, we demonstrated that a low-temperature solution-processed nanocrystalline SnO2 thin film prepared by a facile synthesis method can be an excellent electron transport layer (ETL) material for hybrid solar cells. The SnO2 based hybrid solar cells exhibit an open circuit voltage of 280 mV, which was 100 mV higher than those for devices without SnO2. Based on the above work, we hypothesized that the higher power conversion efficiency is due to the excellent properties of nanocrystalline SnO2 films, such as high electron mobility and excellent transparency at visible wavelength and enhanced exciton dissociation efficiency, and better energy level alignment between FTO and Ag2S for greater photovoltage retention. The simple low temperature low energy consumption, and low-cost soft-chemical process is compatible with the roll-to-roll manufacturing of low-cost hybrid solar cells on flexible substrates.
研究领域:
材料科学
·
太阳能
·
纳米技术
·
有机电子学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2020
·Vol. 30
·期 24
·2001604
·
IF 16.836
Lingxia Zheng,Xiaolei Deng,Yongzhi Wang,Jiaxin Chen,Xiaosheng Fang,Liang Wang,Xiaowei Shi,Huajun Zheng
A novel inorganic–organic heterojunction (TiO 2 /P3HT (poly(3-hexylthiophene)) is easily prepared by a combination of anodization and vacuumed dip-coating methods, and the constructed flexible fibrous photodetector (FPD) exhibits high-performance self-powered UV–visible broadband photoresponse with fast speed, high responsivity, and good stability, as well as highly stable performance at bending states, showing great potential for wearable electronic devices. Moreover, Au nanoparticles are deposited to further boost the responsivity and selectivity by regulating the sputtering intervals. The optimal Au/TiO 2 /P3HT FPD yields an ≈700% responsivity enhancement at 0 V under 350 nm illumination. The sharp cut-off edge and high UV–visible rejection ratio (≈17 times higher) indicate a self-powered flexible UV photodetector. This work provides an effective and versatile route to modulate the photoelectric performance of flexible electronic devices.
研究领域:
材料科学
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纳米技术
·
光电子学
·
柔性电子学
✓ 已验证
DOI
高影响因子
ACS Applied Electronic Materials
·
2025
·
IF 4.7
Jiale Huang,Linfeng Lan,Bo Huang,Jiayi Pan,Baozhong Chen,Qi Zhou,Huimin Su,Jintao Xu,Jiajun Lin,Yutian Liu,Yang Lu,Simeng Gong,Junbiao Peng
Recent advancements in organic electronics highlight the potential of stretchable organic field-effect transistors for neuromorphic applications. However, maintaining a high electrical performance under mechanical strain remains a critical challenge. Here, we present a stretchable organic synaptic transistor with a phase-separating method. By blending poly(3-hexylthiophene) (P3HT) with styrene–ethylene–butylene–styrene (SEBS), P3HT–SEBS phase-separated films were obtained that combine high mechanical stretchability with good charge transport property. The organic synaptic transistors (OSTs) were able to withstand a mechanical strain of greater than 80%. Remarkably, by combining SEBS-induced stress dissipation with ionic gel-driven synaptic modulation, the OSTs were able to mimic synaptic dynamics under strain, facilitating neurobiological behaviors. Our work addresses the critical need for strain-resilient organic devices in next-generation human–machine collaboration.
研究领域:
有机电子学
·
神经形态工程
·
材料科学
·
可拉伸电子学
·
合成生物学
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产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Qiang Li,Yuwen Li,Lifeng Ding,Xinwang Li,Jianan Ma,Tsuyoshi Minami,Shengbo Sang
Flexible pressure sensors are crucial for applications such as human machine interfaces, soft robotics, electronic skin, and medical diagnostics and therapeutics. However, these sensors face various limitations, such as low sensitivity and slow response times. In this study, we developed an innovative methodology that integrates the pressure transduction mechanism with field-effect modulation principles to fabricate a pressure sensor based on poly (3-hexylthiophene) (P3HT) organic thin-film transistors (OTFTs). We quantitatively analyzed the sensing mechanism of the P3HT OTFT flexible pressure sensor and implemented structural optimizations based on the underlying principles. Consequently, the optimized P3HT OTFT flexible pressure sensor demonstrated exceptional sensing performance, along with low response and recovery times. Furthermore, the sensor exhibited high mechanical durability, enduring over 2000 bending cycles without deterioration. Furthermore, we achieved efficient pressure distribution detection with high-resolution spatial mapping capabilities by integrating the OTFT sensors into wearable arrays, demonstrating significant potential for wearable technology applications. These findings present considerable potential for the implementation of OTFT-based flexible sensors in wearable electronics.
研究领域:
材料科学
·
电子工程
·
传感技术
·
可穿戴设备
·
有机电子学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2020
·
IF 9.038
Hongjie Zhu,Lingxuan Gong,Zhihao Chen,Youyou Hu,Zhengkui Li
The Z-scheme photocatalyst is valuable for use in polluted water purification, and there is a need to develop a cheap and efficient photocatalyst. This study presents a new type of Z-scheme photocatalytic material composed of hematite and P3HT, also, the Al cluster oxides were first used as a charge transfer mediator to construct Z-scheme photocatalysis system. In addition, by analyzing the electron rearrangement phenomenon exhibited by the XPS spectrum and the experimental results of the in-situ illumination XPS, it is found that Al cluster is beneficial to the electron multi-step charge transfer process and Al cluster favors the construction of Z-scheme structure between hematite and P3HT. This Poly-3-hexylthiophene (P3HT)/Al cluster oxide/hematite ternary photocatalyst exhibited an excellent degradation effect on bisphenol A and tetracycline. This study demonstrates the feasibility of using the Al cluster as a charge mediator in the Z-scheme, providing new Z-scheme catalyst construction idea which is beneficial to the popularization and use of Z-scheme system in practical applications, and providing a new material for water pollution purification.
研究领域:
环境科学
·
材料科学
·
化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2020
·
IF 9.038
Hongjie Zhu,Zhihao Chen,Youyou Hu,Lingxuan Gong,Dandan Li,Zhengkui Li
The Z-scheme photocatalyst is valuable for use in polluted water purification. To improve the practical application value of the Z-scheme, in this study, a nano α-Fe 2 O 3 and P3HT composite photocatalyst array was synthesized by electrophoretic deposition for the first time. This material was named F1P. The EPR, VBXPS and in situ illumination XPS analyses indicated that the charge transfer path of F1P conforms to the Z-scheme, and F1P array has a high light energy conversion efficiency. Due to the advantages of the Z-scheme system and the good light harvesting ability, F1P exhibited a good degradation effect on different types of pollutants under visible light irradiation. The degradation efficiency of tetracycline and bisphenol A by F1P can reach 97 % and 99 %, respectively. Moreover, F1P showed a certain resistance to water quality changes. After four cycles, F1P can maintain the structural stability and good pollutant treatment effect. Due to the high redox ability of F1P, the complex structure of pollutants can be destroyed and the degradation path of pollutants in F1P system was also analyzed. This study provides a new way of synthesizing Z-scheme systems and immobilizing Z-scheme photocatalysts. F1P is a new material with high practicability.
研究领域:
环境科学
·
材料科学
·
化学工程
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Sustainable Systems
·
2025
·Vol. 9
·期 12
·e01167
·
IF 6.1
Xinbing Jiang,Zizhuo Nie,Xingyu Jin,Wenyu Cheng,Yuhang Liu,Bo Peng,Qi Hu,Ming Xu,Jiuhong Wang,Libo Zhao,Kai Xi,Shujiang Ding
Hydrazine (N 2 H 4 ) is a highly toxic and strongly reducing compound extensively used in aerospace propulsion and industrial synthesis, necessitating its real-time detection essential for environmental and occupational safety. Here, an electrohydrodynamic printing (EHDP) strategy is reported to fabricate a uniform poly(3-hexylthiophene)-SnO 2 (P3HT-SnO 2 ) composite sensing film for room-temperature hydrazine sensing. Structural characterizations reveal homogeneous dispersion of ≈4 nm SnO 2 quantum dots (QDs) on the P3HT matrix and the formation of interface P-N heterojunctions. The P3HT-SnO 2 sensor delivers a remarkable response of 1550% toward 15 ppm N 2 H 4 , an ultralow detection limit of 500 ppb, excellent selectivity against common interfering gases (CO, H 2 , CO 2 , and C 2 H 5 OH), and long-term performance over 90 days. Compared with drop-cast films, the EHDP-printed devices exhibit superior uniformity, tunable thickness, and significantly enhanced response and recovery kinetics, arising from increased active sites, optimized morphology, and accelerated gas adsorption–desorption dynamics. Mechanistic investigations indicated that N 2 H 4 molecules donate electrons, reducing hole density in P3HT and expanding the depletion region at the P3HT-SnO 2 interface, thereby amplifying the resistance change. These results establish EHDP-printed P3HT-SnO 2 hybrid films as a robust platform for highly sensitive, selective, and stable hydrazine detection at room temperature, offering a promising route toward advanced toxic hydrazine gas sensors.
研究领域:
材料科学
·
传感器与传感技术
·
纳米技术
·
环境监测
·
电子器件
✓ 已验证
产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2021
·
IF 4.126
Siyuan Weng,Man Zhao,Dayong Jiang
One of the most interesting structures of organic photodetectors (OPDs) is the bulk heterojunction (BHJ), which can be achieved by mixing electron donors and electron acceptors in a suitable solvent and then spin-coating. BHJs have proven to be a very useful method to overcome the short diffusion length of organic semiconductor excitons. However, this structure enhances disorder and hinders the collection of photogenerated carriers. Therefore, it is very important to prepare OPDs with this structure. In this paper, we show how to use conjugate polymer donor poly(3-hexylthiophene) (P3HT) and fullerene derivative acceptor 6,6-phenyl C61-butyric acid methyl ester (PC61BM) to form a binary BHJ active layer by spin-coating to improve the performance and detector wavelength of a ZnO ultraviolet (UV) photodetector (PD). Compared with the ZnO UV PD, the responsivity of the OPD can reach 0.58 A W–1, which is increased by about 7.14 times. Furthermore, the OPD shows improved absorption, high photocurrent to dark current ratio (1.63 × 104), and excellent detection capability (3.67 × 1012 Jones). The preparation of a new OPD by this work shows strong performance and provides a new idea for the research of OPD. Therefore, it is very important to design and manufacture ZnO UV PD to form a BHJ OPD with organic polymers P3HT:PC61BM.
研究领域:
材料科学
·
光电探测器研究
✓ 已验证
DOI
高影响因子
ChemNanoMat
·
2026
·Vol. 12
·期 9
·e70373
·
IF 2.6
Yongjia Liu,Xunqian Zhang,Zizhuo Nie,Jiuhong Wang,Yuhang Liu,Bo Peng,Shujiang Ding,Xinbing Jiang
The development of room-temperature ammonia (NH 3 ) sensors with high sensitivity, selectivity, and stability remains a significant challenge for environmental monitoring and healthcare applications. Herein, an interfacial-engineered P3HT–SnO 2 quantum dot (QD) composite was developed for high-performance room-temperature NH 3 sensing. The composite was fabricated through a facile wet-chemical method, where SnO 2 QDs were uniformly integrated with the p-type P3HT matrix to construct abundant heterointerfaces. The optimized P3HT–SnO 2 QD sensor with a mass ratio of 1:1 exhibited significantly enhanced NH 3 sensing performance, achieving a high response of 188.31% toward 50 ppm NH 3 at room temperature, together with excellent reproducibility, long-term stability, and anti-interference capability. The enhanced sensing behavior is attributed to the formation of p–n heterojunctions between P3HT and SnO 2 QDs, along with the quantum confinement effect of SnO 2 QDs to generate abundant surface-active sites, which induce interfacial charge redistribution, facilitate carrier transport, and promote NH 3 adsorption and surface reactions. Furthermore, density functional theory (DFT) calculations reveal the preferential adsorption of NH 3 molecules on the P3HT–SnO 2 interface, providing theoretical insights into the improved sensing selectivity. This work demonstrates an effective interfacial engineering strategy for constructing high-performance organic–inorganic hybrid NH 3 sensors operating at room temperature.
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DOI
高影响因子
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