ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yue Han,Guohui Li,Ting Ji,Yuying Hao,Yanxia Cui
In the endeavor to develop advanced photodetectors (PDs) with superior performance, all-inorganic perovskites, recognized for their outstanding photoelectric properties, have emerged as highly promising materials. Due to their unique electronic structure and band characteristics, the majority of all-inorganic perovskite materials are not sensitive to near-infrared (NIR) light. Here, we demonstrate the fabrication of a high-performance broadband PD comprising CsPbBr3 perovskite NCs/Y6 planar heterojunctions. The incorporation of Y6 not only facilitates charge transfer from CsPbBr3 NCs to Y6 for enhancing photodetection performance under visible illumination but also broadens the absorption spectrum range of the whole device toward the NIR regime. As a result, the heterojunction PD exhibits a photo-to-dark-current ratio above 105, a dynamic range of 149.5 dB, and an impressive lowest detection limit of incident power density of 1.6 nW/cm2 under 505 nm illumination. In the NIR regime, where photon energy is below the bandgap of CsPbBr3, electron–hole pairs can still be produced in the Y6 layer even when illuminated at 1120 nm. Consequently, photodetection is uniquely possible in PDs that incorporate heterojunctions when the illumination wavelength is longer than 565 nm. At 850 nm, the heterojunction device is capable of detecting light with power densities as low as 1.3 μW/cm2 corresponding to a LDR of 99.8 dB. The exceptional performance is attributed to the creation of a heterojunction between CsPbBr3 NCs and Y6. These findings propose a novel approach for developing broadband PDs based on perovskite NC materials.
研究领域:
材料科学
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光电子学
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DOI
PubMed
高影响因子
ACS Applied Energy Materials
·
2025
·
IF 5.5
Xuejiao Tang,Xiujie Peng,Haitao Liao,Xiaoying Zeng,Xiaoying Zhang,Yu Zhu,Chao Weng,Ping Shen
The rational development of the third component is the key to obtaining highly efficient ternary organic solar cells (OSCs). In this contribution, one tetracyanobutadiene-functionalized small molecule, IDT-T-PCN, featuring a noncoplanar molecular backbone, is selected and employed as a third component to construct PM6:Y6:IDT-T-PCN ternary OSCs. Results demonstrate that IDT-T-PCN exhibits complementary absorption and cascade energy-level alignment with the host materials (PM6 and Y6), which are beneficial for improving light-capture capability and charge transfer properties. Absorption spectra and contact angle measurements reveal that there is good compatibility and strong interaction between IDT-T-PCN and Y6, which can affect the crystallization and molecular aggregation of the host materials, especially Y6. The morphology, structure, and formation kinetics characterizations of the active layer film have unveiled that IDT-T-PCN plays a critical role in optimizing phase separation and morphology, modulating molecular aggregation, and enhancing crystallization and orderly molecular stacking of the ternary blend. Therefore, the ternary OSCs exhibit improved charge dissociation and collection probability, enhanced charge transport, and reduced charge recombination, leading to improvements in all photovoltaic parameters. Specially, the ternary OSCs incorporated with IDT-T-PCN achieve a decent PCE of 17.36%, which is obviously higher than that of the host PM6:Y6 binary device (PCE = 15.84%) owing to the simultaneous increase of VOC, JSC, and FF. This work highlights the role of careful material selection and design of the third component with the aim of optimizing device physics processes, crystallinity, and morphology of the blend film, ultimately realizing high-performance ternary OSCs.
研究领域:
材料科学
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有机电子学
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光伏技术
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高分子科学
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纳米技术
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DOI
高影响因子
Materials Horizons
·
2024
·
IF 12.2
Min Long,Ciyuan Huang,Xiao Huang,Linji Yang,Liangsheng Chen,Ke Sun,Caiyun Wang,Liying Zhang,Libin Zhang,Songlin Cai,Shangfei Yao,Hongxiang Zhu,Tao Yang,Bingsuo Zou,Tao Liu
Carbamazepine, recognized as one of the most prevalent pharmaceuticals, has attracted considerable attention due to its potential impact on ecosystems and human health. In response, this work synthesized and characterized a novel environmentally friendly and cost-effective organic semiconductor photocatalyst PM6:Y6:ITCPTC loaded with coconut shell charcoal, and then investigated its performance for photocatalytic removal. Remarkably, carbamazepine demonstrated a photodegradation efficiency exceeding 99% within a mere 20 minutes of exposure to one sunlight intensity, and also showed good effectiveness under a low light intensity of 50 W. The catalyst exhibited exceptional reusability and stability, maintaining degradation efficiency between 95–99% over 25 cycles. The high photocatalytic activity of PM6:Y6:ITCPTC is primarily attributed to the incorporation of the third component (named ITCPTC), which enhances exciton dissociation and carrier transfer, generating superoxide radicals, electrons, and holes. Furthermore, the plausible degradation pathway of carbamazepine was proposed based on the measured intermediates and density functional theory calculations.
研究领域:
环境科学
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药物化学
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DOI
PubMed
高影响因子
Journal of Physical Chemistry Letters
·
2026
·
IF 4.5
Jia Li,Yujie Yang,Shuqin Xiong,Jiayang Jiang,Yali Yu,Feng Teng,Yufeng Hu
Interfacial charge transfer in composite semiconductor channels provides a powerful and physically transparent route to achieving broadband and high-gain phototransistors, yet remains insufficiently explored in indium-free oxide–organic systems. Here, we report a broadband-responsive hybrid phototransistor based on an all-solution-processed composite channel composed of zinc–tin oxide (ZTO) and an organic bulk heterojunction PM6:Y6. In this architecture, amorphous ZTO serves primarily as a high-mobility, low-noise electron transport channel with excellent gate controllability, while the PM6:Y6 bulk heterojunction supplies strong and broadband optical absorption, enabling efficient photocarrier generation from the ultraviolet to the near-infrared region. Efficient interfacial charge transfer at the oxide/organic interface allows photogenerated electrons in the PM6:Y6 layer to be injected into the ZTO channel, where they are rapidly transported and amplified by the field-effect conduction pathway. Systematic optoelectronic characterizations reveal that the resulting high gain originates from interfacial carrier separation and accumulation at the composite channel, rather than from direct charge transport within the organic layer alone. As a result, the device exhibits pronounced photocurrent enhancement across the ultraviolet–visible–near-infrared spectral range, with a photosensitivity exceeding 5 orders of magnitude, a maximum responsivity of 9.13 × 103 A/W, and a specific detectivity on the order of 1015 Jones. By replacing indium-containing oxides with solution-processed ZTO, this work demonstrates that broadband high-gain photodetection can be realized without relying on indium-specific electronic properties. These results establish interfacial charge transfer as a general and scalable physical mechanism for designing indium-free, broadband, and high-performance oxide-based phototransistors.
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高影响因子
Surfaces and Interfaces
·
2025
·
IF 6.3
Qiao Zheng,Zhaohuang Guo,Jinyong Zhuang,Ziqi Zhou,Jionghua Wu,Hui Deng,Caixia Zhang,Weihuang Wang,Shuying Cheng
Zinc oxide (ZnO) is used as an electron transport layer (ETL) in inverted organic solar cells (IOSCs) owing to its excellent performance, such as good light transmission and high conductivity, while its surface defects and photocatalytic properties limit the development of IOSCs. Herein, we apply an antioxidant, syringic acid (SA), to modify the surface of ZnO film, which observably improve the efficiency and stability of IOSCs. It is found that SA can effectively passivate the surface defects of ZnO and optimize surface morphology, as well as reduce the work function (W F ) of ZnO resulting in an improvement of the charge transport of IOSCs. The power conversion efficiency (PCE) of PM6:Y6-based IOSCs is increased from 16.19 % to 18.18 %, it is the highest PCE values of the single-junction IOSCs based on PM6:Y6 system as reported. Meanwhile, the photostability of the device is markedly improved due to SA could suppress the photocatalytic of ZnO under the ultraviolet aging.
研究领域:
材料科学
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能源技术
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化学工程
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Shuxin Li,Wenfei Shen,Hao Fu,Yao Wang,Jun Li,Zhonglin Du,Matt J. Kipper,Christopher D. Snow,Laurence A. Belfiore,Soo Wohn Lee,Jianguo Tang
The emergence of convenient blading technology has enabled the development of large-area polymer solar cells (PSCs). However, the smart, efficient enhancement and transparency adaption of bladed PM6:Y6 solar cells requires demonstration of key performance indicators. Herein, we report the enhanced efficiency and adapted transparency of PSCs by binary lanthanide (Eu3+/Sm3+)-induced diblock polymer aggregates (EIPAs/SIPAs) with inclusion of ZnO (ZnO:EIPAs:SIPAs). First, the EIPA- and SIPA-cocapsulated ZnO nanoclusters (ESPAs-Z) were employed as the electron-transport layer (ETL). Owing to their distinct excitation and emission spectra, EIPAs and SIPAs can synergistically boost solar light harvesting and energy conversion. Thus, bladed devices using a PM6:Y6 active layer, with EIPAs and SIPAs in the ETL, have achieved an enhanced power conversion efficiency (PCE) of 13.47% that is notably enhanced by the ratio of 11.4% from 12.03% of the single ZnO ETL. Simultaneously, this ESPAs-Z-in-ETL improves the compatibility between ITO and the active layer and optimizes the energy-level alignment at the interface. In PM6:Y6-based semitransparent polymer solar cells (ST-PSCs), doping EIPAs and SIPAs yielded an optimal PCE of 6.09% while maintaining a high AVT of 39.32%. This work demonstrates that incorporating Eu3+/Sm3+ nanoaggregates into PSCs is a critical advance for the scalable fabrication of ST-PSCs.
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DOI
PubMed
高影响因子
MICROCHIMICA ACTA
·
2022
·Vol. 189
·期 11
·1-9
·
IF 6.408
Luo Jiarong,Luo Junjun,Deng Lei,Yang Minghui,Chen Xiang
A “signal-on” photoelectrochemical (PEC) immunosensor was successfully constructed for determination of human epidermal growth factor receptor 2 (HER2) based on organic–inorganic heterojunction Y6/CdS as photoactive material. Compared with single organic semiconductor, Y6, Y6/CdS exhibited higher photoelectric conversion efficiency due to the formation of heterojunction. In the presence of HER2, sandwich immune structure was formed between HER2 aptamer and anti-HER2 antibody (Ab) by specific recognition. The polydopamine (PDA) nanoparticles were used for signal amplification to enhance photocurrent intensity as PDA can act as electron donor to eliminate holes and promote electron–hole pairs separation. The developed PEC sensor displayed a wide detection range of 5–1000 pg mL −1 and a low detection limit of 2.2 pg mL −1 for HER2 (S/N = 3). The sensor was successfully used for the detection of HER2 in serum with recoveries between 94.8 and 104% and relative standard deviations (RSDs) in the range of 1.2–4.3%. Furthermore, the designed immunosensor possessed good stability, selectivity, and reproducibility, which can find potential clinical applications for disease diagnosis. Graphical abstract A “signal-on” photoelectrochemical sensor was reported for human epidermal growth factor receptor 2 detection based on Y6/CdS organic–inorganic heterojunction
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DOI
PubMed
高影响因子
Nanoscale
·
2025
·
IF 5.1
Yueqian Jia,Yuanxin Liang,Yongli Yan,Yuze Lin,Chuang Zhang
Organic photovoltaic nanoparticles, with their tunable light absorption and exceptional charge dynamics, have shown promising potential for solar-driven hydrogen evolution. However, the interplay between exciton dissociation and charge transport in these systems remains poorly understood, limiting the efficiency of energy conversion. Here, we reinterpret this challenge using size/composition-tunable PM6:Y6 nanoparticles synthesized via a miniemulsion method. The PM6:Y6 heterojunction, featuring strong visible-light absorption and type-II energy level alignment, effectively facilitates exciton dissociation and charge separation, as evidenced by pronounced photoluminescence quenching and size-dependent transient fluorescence decay. Notably, nanoparticles with an optimized diameter of 63.9 nm exhibited the highest hydrogen evolution rate (110.13 ± 39.25 mmol g−1 h−1) and enhanced photocurrent density, attributed to an optimal balance between donor–acceptor interfacial area and charge transport pathways. Our findings reveal that both nanoparticle size and internal phase distribution critically influence photocatalytic performance, with smaller particles favoring short charge transport distance and larger particles benefiting from phase uniformity. This work establishes a comprehensive structure–property relationship that paves the way for the rational design of organic photovoltaic catalysts for efficient solar-to-hydrogen conversion.
研究领域:
材料科学
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光催化
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纳米技术
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能量转换
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有机电子学
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产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry B
·
2024
·
IF 6.1
Kexin Fan,Ludan Zhang,Qinqiu Zhong,Yanhe Xiang,Bowei Xu,Yuguang Wang
Although acceptor-donor-acceptor (A-D-A)-type molecules show advantages in constructing NIR absorbing photothermal agents (PTAs) due to their strong intramolecular charge transfer and molecular planarity, their applications in photothermal therapy (PTT) of tumor are insufficiently explored. In particular, the influence of ESP distribution on optical properties of A-D-A photosensitizers has not been investigated. Herein, we utilized the advantages of A-D-A-type molecules with large ESP difference to construct NIR absorbing PTA with sufficient extinction coefficient (ɛ) and high photothermal conversion efficiency (PCE). The calculation results of density functional theory (DFT) indicate that the large ESP difference of Y6 may increase intermolecular interactions and induce tight packing of the A-D-A photosensitizer. As a result, Y6 NP exhibited an obvious bathochromic shift of absorption peak from 711 nm to 822 nm, with a NIR-II emission extended to 1400 nm. Moreover, a sufficient ɛ of 3.34 L·g-1·cm-1 and PCE of 66.3% were attained, making Y6 NP suitable for PTT. With a concentration of 100 μg/mL, Y6 NPs in aqueous dispersion yielded a death rate of 93.4% for 4T1 cells upon an 808 nm laser irradiation (1 W·cm-2) for 10 min, which is comparable with the best results of recently reported PTT agents.
研究领域:
生物医学工程
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纳米技术
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光疗
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材料科学
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产品关联
DOI
PubMed
高影响因子
Small
·
2022
·Vol. 18
·期 12
·2106083
·
IF 15.153
Yu Gao,Wenzhan Xu,Si-Wei Zhang,Tianjie Fan,Meng Zhang,Aihua Ran,Xuan Zhang,Feiyu Kang,Guodan Wei
Nowadays, nearly 48.7% near-infrared (NIR) irradiation (>800 nm) of the full solar spectrum has actually not been fully utilized since the state-of-the-art perovskite film usually can only absorb the most UV–vis sunlight radiation. Herein, high efficiency integrated Cs 0.15 FA 0.85 PbI 3 perovskite/organic bulk (PC 61 BM:D18:Y6) heterojunction solar cells with enhanced low energy photon harvest until 931 nm and a high maintained open circuit voltage of 1.04 V is successfully obtained. In particular, the favorable double cascading charge transfer paths pave an interesting possibility to spatially separate electrons upon visible light excitation and holes upon NIR photon absorption simultaneously at interfaces, significantly suppressing non-radiative bimolecular recombination and reaching the photocurrent density as high as 27.48 mA cm −2 and power conversion efficiency of 20.31%. Besides, the strong hydrophobicity of the ternary organic film has effectively prevented ambient humidity penetration and improves the stability of the perovskite in the continuous aging test (humidity > 60%) compared with the control device. This work has opened a significantly new window to improve the NIR light harvest for next generation highly efficient solar cells with full spectrum response.
研究领域:
材料科学
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太阳能电池
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光伏技术
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有机电子学
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钙钛矿太阳能电池
·
近红外光吸收
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）