Advanced Science
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2025
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IF 14.1
Liangshutong Zhang,Yupu Zhang,Xinyu Li,Donghao Han,Wei Zhai,Jianyuan Wang
The realization of fast, simple and efficient flight attitude recognition is crucial for flight safety and control stability, but still faces challenges in new materials and technologies. Herein, a chloroplast-like selenium-doped copper sulfide@black phosphorus (CSS@BP) composite material is prepared by ultrasonic chemical synthesis using BP nanosheets to effectively absorb light energy and disperse CSS layers to promote rapid photothermal conversion, which shows the temperature change more than ≈40 °C and an excellent photothermal conversion efficiency of 68.9% at 405 nm, corresponding to the theoretical calculation results. Moreover, the CSS@BP/Bi 2 Te 3 photothermoelectric conversion array prepared by pulsed laser deposition coated Bi 2 Te 3 thermoelectric layer and laminated porous insulating polyimide film can generate rapid thermal current changes through irradiated/non-irradiated thermal gradients. Hence, a portable attitude recognition box (ARB) is assembled with a based CSS@BP/Bi 2 Te 3 array with a self-balancing laser and a current measurement chip that enables accurate attitude recognition through the bidirectional current generated by changes of irradiated area. Excitably, the ARB demonstrates over 86.47% accuracy without complex algorithms, showing excellent stability and robustness. Thus, this work offers an innovative solution for advancing photothermal materials and low-cost high-precision flight attitude sensing technologies.
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ACS Photonics
·
2024
·
IF 6.5
Liquan Yao,Ming-Hao Lai,Limei Lin,Dong Wei,Zhigao Huang,Shuiyuan Chen,Guilin Chen
Severe back interface recombination still impedes the enhancement of device performance in Sb2S3 solar cells, primarily due to a plethora of defects derived from suspended bonds at the rear surface of Sb2S3. In contrast to the conventional physical absorption method (i.e., Sb2S3/Spiro-OMeTAD), herein, we develop a novel strategy involving cation exchange-assisted hot injection for the in situ anchoring of PbSe nanocrystalline structures to the surface of Sb2S3. This process successfully establishes a deeply buried back interface, thereby creating a robust chemically bonding bridge for facilitating smooth carrier transfer. Additionally, the energy level arrangement has been tailored by the quantum size effect of PbSe particles to mitigate band offsets at the back interface. Consequently, the decent PbSe substantially reduces the density of surface defects from 2.44 × 1016 to 9.8 × 1015 cm–3, leading to an effective suppression of nonradiative recombination as supported by the reduction in the surface photovoltage. Ultimately, the power conversion efficiency of Sb2S3 solar cells based on the ITO/TiO2/CdS/Sb2S3/PbSe/C/Ag architecture is elevated from 6.78 to 7.34%, representing the highest efficiency achieved for full-inorganic Sb2S3 solar cells to date. This construction tactic of the deeply buried back interface sheds light on the pursuit of highly efficient Sb2S3 solar cells.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
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IF 6.3
Senyang Wang,Xin Li,Mengyu Liu,Pi Wang,Jingyi Qi,Ling Li
Considering the instability of quantum dot sensitized solar cells (QDSSCs) due to the leakage and volatileness of polysulfide electrolyte. We explored the possibility of applying Ce doping LaMnO 3 ceramic hole transport material (LaMnCe) inside QDSSCs. LaMnO 3 oxides possess high electronic conductivity. Doping of Ce can adjust the band position of materials to match Zn-Cu-In-Se (ZCISe) QDSSCs. LaMnCe was added to the photoanode by spin method and further constructed into the quasi-solid state QDSSCs. The QDSSCs can achieve the PCE of 9.15 % (V oc is 0.66 V, J sc is 24.49 mA·cm −2 , FF is 57.80), which is 33 % higher than the standard liquid QDSSCs. The average electron lifetime of quasi-solid-state QDSSCs prepared with LaMnCe is 5 % higher than that of liquid QDSSCs, and the stability performance of the QDSSCs has been raised significantly.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Qihang Sun,Baoyu Li,Jiaxin Hu,Hongquan Fu,Juan Zhang,Jinming Chang,Hejun Gao,Yunwen Liao
U(VI) in nuclear wastewater threatens human health and the environment due to its high toxicity and mobility. Photocatalysis is seen as a promising, simple, low-cost, and sustainable method for wastewater treatment, but existing photocatalysts face challenges like complex preparation and severe electron-hole recombination. In this work, ellipsoidal Se-linked ZnSe/ZnO was in situ constructed using a simple one-pot hydrothermal method, with non-metallic selenium serving as the carrier. In 30 minutes, the removal rate of U(VI) can reach 90.2 % in 100 mg/L U(VI) solution. The reaction kinetics of the optimal Se/ZnSe/ZnO ratio reached 0.14939 min −1 , which is nearly 10 times that of pure ZnO. Photocatalytic analysis revealed that introducing Se as the medium for electron transport in the composite material can effectively reduce electron-hole recombination, thereby enhancing photocatalytic efficiency. The results of this study offer a simple and efficient new method for photocatalytic reduction of U(VI) and provide an effective strategy for establishing a conductive medium in the heterojunction using a one-pot hydrothermal method.
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ANALYTICAL CHEMISTRY
·
2024
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IF 6.7
Zhi-Gang Wang,Yusi Hu,Hao-Yang Liu,Hai-Yan Wen,Bao-Ping Qi,Shu-Lin Liu
Electrochemiluminescence (ECL) imaging, a rapidly evolving technology, has attracted significant attention in the field of cellular imaging. However, its primary limitation lies in its inability to analyze the motion behaviors of individual particles in live cellular environments. In this study, we leveraged the exceptional ECL properties of quantum dots (QDs) and the excellent electrochemical properties of carbon dots (CDs) to develop a high-brightness ECL nanoprobe (CDs-QDs) for real-time ECL imaging between living cells. This nanoprobe has excellent signal-to-noise ratio imaging capabilities for the single-particle tracking (SPT) of biomolecules. Our finding elucidated the enhanced ECL mechanism of CDs-QDs in the presence of reactive oxygen species through photoluminescence, electrochemistry, and ECL techniques. We further tracked the movement of single particles on membrane nanotubes between live cells and confirmed that the ECL-based SPT technique using CD-QD nanoparticles is an effective approach for monitoring the transport behaviors of biomolecules on membrane nanotubes between live cells. This opens a promising avenue for the advancement of ECL-based single-particle detection and the dynamic quantitative imaging of biomolecules.
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Nature Communications
·
2024
·Vol. 15
·期 1
·1-12
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IF 14.7
Lyu Wenyuan,Liu Yang,Chen Datong,Wang Fengliang,Li Yingwei
Photocatalytic conversion of CO 2 into syngas is highly appealing, yet still suffers from the undesirable product yield due to the sluggish carrier transfer and the uncontrollable affinity between catalytic sites and intermediates. Here we report the fabrication of Co sites with tunable electron localization capability on two dimensional (2D) nanosheets assembled three dimensional (3D) ordered macroporous framework (3DOM-NS). The as-prepared Co-based 3DOM-NS catalysts exhibit attractive photocatalytic performances toward CO 2 reduction, among which the cobalt sulfide one (3DOM Co-SNS) shows the highest syngas generation rate up to 347.3 μmol h −1 under the irradiation of visible light and delivers a remarkable catalytic activity (1150.7 μmol h −1 ) in a flow reaction system under natural sunlight. Mechanism studies reveal that the high electron localization of metal sites in 3DOM Co-SNS strengthens the interaction between Co and HCOO* via the orbital interactions of d yz / d xz - p and s - s , thus facilitating the cleaving process of C-O bond. Additionally, the ordered macroporous framework with nanosheet subunits elevates the transfer efficiency of photoexcited electrons, which contributes to its high activity.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
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IF 9.4
Xunan Jing,Daomeng Liu,Ning Zhang,Xiaoping Zhao,Jiali Wang,Daquan Wang,Wenchen Ji,Junjun She,Lingjie Meng
Two-dimensional transition metal dichalcogenides (TMDCs) exhibit promising photothermal therapy (PTT) and chemodynamic therapy (CDT) for anti-tumour treatment. Herein, we proposed an engineering strategy to regulate the lattice structure of tungsten-doped molybdenum selenide (Mo x W 1−x Se 2 ) transformed conformational nanoarchitectonics using a microwave-assisted solvothermal method for enhancing peroxidase (POD)-like catalytic performance by adjusting the ratio of molybdenum (Mo) and tungsten (W). Furthermore, the optimised Mo 0.8 W 0.2 Se 2 nanoflakes surface was modified with chitosan (CHI) for improved biocompatibility and nanocatalytic efficacy, then the obtained CHI-Mo 0.8 W 0.2 Se 2 subsequently loaded the chemotherapeutic drug mitoxantrone (MTO) for enhanced 4 T1 cells killing ability, shortly denoted as CHI-Mo 0.8 W 0.2 Se 2 -MTO for PTT-augmented CDT and chemotherapy (CT). A series of performance validations successfully showed that electrons tend to transfer from W to Mo in CHI-Mo 0.8 W 0.2 Se 2 , which resulted in superior POD-like activity ( K m = 0.038 mM) of CHI-Mo 0.8 W 0.2 Se 2 compared with that of horseradish peroxidase. Furthermore, CHI-Mo 0.8 W 0.2 Se 2 -MTO with excellent photothermal conversion efficiency (PCE=63.2 %) in the near-infrared (NIR) region could further promote endogenous •OH generation and MTO controlled release within solid tumours. In vivo studies confirmed the successful achievement of synergistic therapeutic effects (tumour inhibition rate of over 90 %) with minimised side effects. Versatile therapeutic nanoagents hold great potential for personalised therapy of breast cancer and will find their way to the pharmaceutical field.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2024
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IF 8.1
Wenyue Jiang,Bingxin Zhao,Ziting Li,Peng Zhou,Xiaoshuang Chen,Jinping Wang,Rui Yang,Chunling Zuo
Research into cost-effective electrocatalysts for alkaline water and simulated seawater oxidation is paramount for advancing the conversion and storage of renewable energy. In this study, a FeSe 2 /Ni 0·85 Se catalyst with the hollow and ultrathin nanobelts structure is synthesized. The distinctive structure characteristics of FeSe 2 /Ni 0·85 Se heterojunction nanobelts confer exceptional oxygen evolution reaction (OER) properties in diverse electrolytes, including alkaline 1 M KOH and simulated seawater (1 M KOH + 0.5 M NaCl) solutions. The FeSe 2 /Ni 0·85 Se catalyst presents the low overpotentials of 259 and 267 mV at a current density of 10 mA cm −2 , along with the Tafel slopes of 33.7 and 65.5 mV dec −1 in two solutions, respectively. Additionally, the FeSe 2 /Ni 0·85 Se catalyst also demonstrates good stability. This exploration introduces a promising strategy for the development of high-performance electrocatalysts in the realm of green energy, marking the significant progress towards sustainable energy solutions.
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Surfaces and Interfaces
·
2025
·
IF 6.3
Senyang Wang,Yingdi Zhou,Bo Huang,Jingyi Qi,Mengting Hua,Xiaoshi Jin,Ling Li
The practical progression of quantum-dot sensitized solar cells (QDSSCs) due to the poor stability, which directly related to the leakage and volatileness of liquid electrolyte. Herein, the sodium alginate (SA) polysulfide gel electrolyte prepared by grinding method was first applied in the quasi-solid state QDSSCs. It has a pore structure which can elevate the rapid diffusion of ions. And the cross-linked interface with photoanode is smooth and non-adherent. The SA polysulfide gel electrolyte was used in Zn-Cu-In-Se (ZCISe) QDSSCs for standard experiments. The QDSSCs are able to materialize the photoelectric conversion efficiency (PCE) of 8.85 % (V oc is 0.63 V, J sc is 26.16 mA·cm −2 , FF is 51.80), which is 6 % higher than the liquid polysulfide QDSSCs (8.34 %). Above all, the stability is 3.2 times higher than that of liquid polysulfide electrolyte. The research fulfilled the goal of both efficiency and stability, also environmentally friendly.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
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IF 4.9
Hang Wu,Lei Xie,Liang Zhu,Tengbo Yu,Yingze Zhang
As a common malignant bone tumor in adolescents, osteosarcoma (OS) possesses a very poor prognosis and lacks effective treatments. In this study, we developed a multifunctional nanotherapeutic agent (WSe 2 /AIPH/GOx) that can combine photothermal therapy (PTT) /thermodynamic therapy (TDT) /starvation therapy (ST) against OS. The prepared WSe 2 /AIPH/GOx exhibited a high photothermal conversion efficiency of 37.3% under 808 nm near-infrared laser irradiation, which could effectively eliminate tumor cells. In addition, the local high temperature caused by photothermal heat induces the rapid release and decomposition of AIPH, generating oxygen-independent alkyl radicals that promote tumor cell death in the hypoxic microenvironment. More importantly, the introduction of GOx depletes glucose to starve tumor cells on the one hand, and on the other hand can indirectly increase the thermal sensitivity of cells. In vivo experiments have demonstrated that WSe 2 /AIPH/GOx can effectively inhibit tumor growth in mice due to the combined effects of multiple therapies. Overall, this work provides an effective strategy for potential osteosarcoma treatment based on combination therapies.
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Nano Research
·
2024
·
IF 9.5
Song Kai-Zheng,He Xiao-Hang,Chen Zhe-Yong,Tang Ge,Huang Jin-Zhao,Jiang Feng-Lei
Environment-friendly indium phosphide (InP)-based quantum dots (QDs) with efficient red-emitting properties are sufficiently needed to satisfy the requirement of burgeoning display and lighting technology. Currently, the syntheses of InP QDs using tris(trimethylsilyl)phosphine as the precursor are highly toxic and expensive. Herein, we successfully introduced gallium (Ga) ions into tris(dimethylamino)phosphine-based red InP cores through thermally-promoted cation exchange, and the obtained Ga-doped InP cores exhibited significantly increased photoluminescence quantum yields (PLQY) of up to 26%. The existence of Ga was directly confirmed by energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy, and the functions of Ga were systematically studied. After subsequent coating of Ga-doped InP cores with ZnSeS and ZnS shells, the resulting Ga-InP/ZnSeS/ZnS QDs achieved a high PLQY of 62% with an emission maximum at 640 nm. In contrast, without Ga-doping, the PLQY only attained 36% using the same synthetic approach. This indicated an approximate 1.7-fold increase in PLQY. The enhancement of photoluminescence was related to the Ga 3+ , as it not only passivated surface defects of InP cores but also reduced core-shell interface stress. The Ga-InP/ZnSeS/ZnS QDs exhibited good stability towards heat treatment and ultraviolet (UV) irradiation. Moreover, the red light-emitting diode (LED) based on Ga-InP/ZnSeS/ZnS QDs performed well in a wide injected current range of 2 to 200 mA, with a maximum power efficiency of 0.68 lm/W. This work showcases Ga-doping through cation exchange as a promising strategy for enhancing the efficiency of InP-based red emitters.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Xinglin Jia,Jianan Li,Yuhong Liu,Wenzhong Wang,Yujie Li,Lei Liu,Huabin Chen,Guling Zhang,Sitong Liu,Qing Zhou,Lijuan Wang
A novel CdS/CdSe/Cu 2 O nanorod array (NRA) photoelectrode with cascading charge transport channels was designed for the first time to remarkedly boot photoelectrochemical (PEC) hydrogen generation under visible light illumination with zero bias. This ternary photoelectrode was constructed by modifying CdS nanorod arrays with n-type CdSe and p-type Cu 2 O nanoparticles , successively. In this novel photoanode , CdSe and Cu 2 O with small band gap not merely highly heighten the visible light absorption capacity of CdS, but more importantly integrate with CdS to build cascading charge transport channels at the CdS/CdSe and CdSe/Cu 2 O interfaces, dramatically facilitating the separation and transport efficiency for photoexcited electron and hole pairs. The CdS/CdSe/Cu 2 O NRA photoelectrode gains an obvious hydrogen generation rate of 193.2 μmol·h −1 , 8.2 times higher than that of bare CdS NRA photoelectrode. The remarkably enhanced PEC hydrogen production for the CdS/CdSe/Cu 2 O NRA photoanode can be ascribed to effective solar energy utilization and charge carrier separation.
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