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Solution-processed molybdenum oxide Hole Transport Layer Stabilizes Organic Solar Cells

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Chinese Journal of Polymer Science 2023年第2期41卷 202-211页

作者： Yan-Fu Liu Si-Wen Zhang Yan-Xun Li Shi-Lin Li Li-Qing Huang Ya-Nan Jing Qian Cheng Lin-Ge Xiao Bo-Xin Wang Bing Han Jia-Jie Kang Yuan Zhang Hong Zhang Hui-Qiong Zhou CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and TechnologyBeijing100190China College of Chemistry Zhengzhou UniversityZhengzhou450001China School of Chemistry Beihang UniversityBeijing100191China School of Engineering and Technology China University of Geosciences(Beijing)Beijing100083China The Department of thoraciccardio surgery PLA Rocket Force Characteristic Medical CenterBeijing100088China

The hole transport layer(HTL)affects the device performance and stability of organic solar *** this work,a stable molybdenum oxide(MoO_(x))hole transport layer with low cost was prepared by adjusting the state of the precursor solution with an alcoholic solution of molybdenum acetylacetonate through an *** MoO_(x) transport layer has good transmittance with a work function of 5.07 eV and higher surface *** PM6:Y6 devices using MoO_(x) HTL achieve a high efficiency of 16.8%.MoO_(x) HTL exhibits good applicability with excellent performance in both ternary and all-polymer *** storage stability T80 of the all-polymer device using MoO_(x) HTL was over 600 h,much higher than 70 h of the PEDOT:PSS-based device,and its thermal stability at 85℃ and operational stability under light show better stability than that of the PEDOT:PSS hole transport *** work provides a facile and low-cost method to fabricate HTL for organic solar cells,which is beneficial to improve their efficiency and stability.

关键词： Hole transport layer molybdenum oxide Stability

H_(2)O_(2) actuated molybdenum oxide nanodots:Multi-enzyme-like activities,leverage of Fenton reaction,and dual-mode sensitive detection of alendronate sodium

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Nano Research 2023年第10期16卷 12106-12115页

作者： Siqi Wang Yao Jin Wenhui Ai Xiufeng Wang Zhiqing Zhang Ting Zhou Guodong Zhang Fang Wang Department of Chemistry College of Chemistry and Chemical EngineeringChina University of Petroleum(East China)Qingdao 266580China

Unexpected benefits to the catalytic performance of materials often originate from the presence of surface ***,novel Dpenicillamine modified molybdenum oxide nanodots,with abundant oxygen vacancy defects,were fabrication by a mild,simple,and cost-effective ***–visible(UV–Vis)absorption spectra analysis showed that the nanodots had peroxidaselike and catalase-like *** reactive oxygen species were probed by electronic paramagnetic resonance technique and spectroscopic methods,demonstrating that the nanodots also had oxidase-like ***,the peroxidase-like activity of nanodots was synergistically enhanced in the presence of ferrous ions or ferric ***,less than nanomolar levels of ferrous ions were required to display this phenomenon,meaning Fenton reagent acted as *** on this,a sensitive colorimetric and fluorescent dual-mode sensor for alendronate sodium was *** linear ranges for colorimetric and fluorescence analysis were 0.2–2.5 and 0.2–2.0μM,with detection limits of 31.21 and 71.84 nM,*** method has a simple large-scale material preparation process with higher sensitivity and shorter reaction time,which can inspire and enlighten the design of nanozyme sensors.

关键词： nanozyme molybdenum oxide Fenton reaction alendronate sodium multi-enzyme-like activities

Millisecond-timescale electrodeposition of platinum atom-doped molybdenum oxide as an efficient electrocatalyst for hydrogen evolution reaction

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Frontiers of Materials Science 2022年第3期16卷 171-180页

作者： Yi XIAO Wenxue SHANG Jiyuan FENG Airu YU Lu CHEN Liqiu ZHANG Hongxia SHEN Qiong CHENG Lichun LIU Song BAI College of Chemistry and Life Sciences Zhejiang Normal UniversityJinhua 321000China College of Biological Chemical Sciences and Engineering&Nanotechnology Research InstituteJiaxing UniversityJiaxing 314000China College of Petroleum Engineering Liaoning Petrochemical UniversityFushun 113000China Collegeof Chemistry Jilin Normal UniversityChangchun 130103China

We present a straightforward method for one-pot electrodeposition of platinum atoms-doped molybdenum oxide(Pt·MoO_(3-x))films and show their superior electrocatalytic activity in the hydrogen evolution reaction(HER).A~15-nm-thick Pt·MoO_(3-x) film was prepared by one-pot electrodeposition at-0.8 V for 1 *** to considerably different solute concentrations,the content of Pt atoms in the electrode-posited composite electrocatalyst is *** Pt crystals or islands were observed on the flat Pt-MoO_(3-x) films,indicating that Pt atoms were homogeneously dispersed within the MoO_(3-x) thin *** catalytic performance and physicochemical features of Pt·MoO_(3-x) as a HER electrocatalyst were *** results showed that our Pt·MoO_(3-x) film exhibits 23-and 11-times higher current density than Pt and MoO_(3-x) electrodeposited individually under the same conditions,*** was found that the dramatic enhancement in the HER performance was principally due to the abundant oxygen *** use of the developed one-pot electrodeposition and doping method can potentially be extended to various catalytically active metal oxides or hydroxides for enhanced performance in various energy storage and conversion applications.

关键词： platinum molybdenum oxide electrodeposition hydrogen evolution reaction doping electrocatalyst

Sub-gap defect density characterization of molybdenum oxide: An annealing study for solar cell applications

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Nano Research 2020年第12期13卷 3416-3424页

作者： Daniele Scirè Paul Procel Antonino Gulino Olindo Isabella Miro Zeman Isodiana Crupi Department of Engineering University of PalermoPalermo90128Italy Photovoltaic Materials and Devices group Delft University of TechnologyDelft2628 CDThe Netherlands Department of Chemical Sciences University of CataniaCatania95125Italy

The application of molybdenum oxide in the photovoltaic field is gaining traction as this material can be deployed in doping-free heterojunction solar cells in the role of hole selective *** modeling-based optimization of such contact,knowledge of the molybdenum oxide defect density of states(DOS)is *** this paper,we report a method to extract the defect density through nondestructive optical measures,including the contribution given by small polaron optical *** presence of defects related to oxygen-vacancy and of polaron is supported by the results of our opto-electrical characterizations along with the evaluation of previous *** part of the study,molybdenum oxide samples have been evaluated after post-deposition thermal *** results are in agreement with the result of density functional theory showing the presence of a defect band fixed at 1.1 eV below the conduction band edge of the ***,the distribution of defects is affected by post-deposition treatment.

关键词： molybdenum oxide density of states polaron theory silicon heterojunction solar cell

FORMATION OF molybdenum oxide NANOSTRUCTURES CONTROLLED BY POLY(ETHYLENE oxide)

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Chinese Journal of Polymer Science 2009年第1期27卷 11-22页

作者： Chirakkal V.Krishnan Rafael Muoz-Espí Christian Burger Benjamin Chu Department of Chemistry Stony Brook University

Polymeric systems have played an important role as structure-directing agents and in the control of nucleation and growth of *** article reviews the work of our research group in the field of the polymer-assisted crystallization of inorganic materials,mainly focused on the formation of highly ordered,porous molybdenum oxide *** experimental parameters including the influence of poly(ethylene oxide)-containing polymers on the morphology and structure of the products obtained fr...

关键词： Polymer-assisted crystallization molybdenum oxide Peroxomolybdate Polyoxomolybdate

Synthesis and characterization molybdenum oxide thin film for CIGS application

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Synthesis and characterization Molybdenum oxide thin film fo...

Water-Induced Synthesis of molybdenum oxide for Solution-Processed Hole Transport Layer in Polymer Solar cells

第18届国际真空大会

作者： J.H. Bihn J.Y. Park J.M. Jo Department of Chemistry Pukyong National University

＜正＞Metal oxide thin films are widely used in various applications such as gas-sensing devices and batteries. molybdenum oxide films have attracted attention for CIGS application, solid state micro

关键词： molybdenum oxide RF sputtering XPS

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Water-Induced Synthesis of Molybdenum Oxide for Solution-Pro...

Boosted Electrocatalytic Glucose Oxidation Reaction on Noble-Metal-Free MoO_(3)-Decorated Carbon Nanotubes

第七届新型太阳能电池材料科学与技术学术研讨会

作者： Yongshuai Gong Huaizhi Gao Zongwen Ma Xueqi Wei Hongfei Shi Zhanao Tan Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic CompositesBeijing University of Chemical Technology

MoO as a potential hole transport layer(HTL) in polymer solar cells is usually deposited on the active layer by thermal evaporation in inverted devices,while solution processed MoO(s-MoO) is used in conventional device,the thicknesses in both conditions are limited around 10 nm,which is definitely not suitable for large area module. In this study,we introduce very little amount of water during the synthesis of molybdenum oxide,and the color of precursor solution changes to dark blue after a few hours *** fabricate devices with configuration of ITO/s-MoO/PBDB-T:ITIC/Ca/Al,s-MoO is deposited by spinning coating of the precursor solution and annealing at 150℃ for 15 min in *** concentration of precursor solution is around 20 mg/mL,which indicate the s-MoO is much thicker than most reported *** device demonstrates a power conversion efficiency(PCE) of 8.33 % when the amount of water is 0.3% in precursor solution,which is comparable with PEDOT:PSS as *** the annealing procedure is completed in glove fulfill with nitrogen,the precursor solution should be diluted to around 2 mg/mL before use,100 ℃ for 30 min is enough for a PCE of 7.98 %.

关键词： polymer solar cell molybdenum oxide hole transport layer

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Transactions of Tianjin University 2024年第1期30卷 63-73页

作者： Yu-Long Men Ning Dou Yiyi Zhao Yan Huang Lei Zhang Peng Liu Department of Chemical Engineering School of Chemistry and Chemical EngineeringShanghai Jiao Tong UniversityShanghai 200240China Department of Thyroid Breast and Vascular Surgery Shanghai Fourth People’s Hospital Affi liated to Tongji University School of MedicineShanghai 200081China Department of Vascular Surgery Changhai HospitalNaval Medical UniversityShanghai 200433China

Electrocatalytic glucose oxidation reaction(GOR)has attracted much attention owing to its crucial role in biofuel cell ***,we load MoO_(3)nanoparticles on carbon nanotubes(CNTs)and use a discharge process to prepare a noblemetal-free MC-60 catalyst containing MoO_(3),Mo_(2)C,and a Mo_(2)C–MoO_(3)*** the GOR,MC-60 shows activity as high as 745μA/(mmol/L cm^(2)),considerably higher than those of the Pt/CNT(270μA/(mmol/L cm^(2)))and Au/CNT catalysts(110μA/(mmol/L cm^(2))).In the GOR,the response minimum on MC-60 is as low as 8μmol/L,with a steady-state response time of only 3 ***,MC-60 has superior stability and anti-interference ability to impurities in the *** better performance of MC-60 in the GOR is attributed to the abundant Mo sites bonding to C and O atoms at the MoO_(3)–Mo_(2)C *** Mo sites create active sites for promoting glucose adsorption and oxidation,enhancing MC-60 performance in the ***,these results help to fabricate more effi cient noble-metal-free catalysts for the fabrication of glucose-based biofuel cells.

关键词： Interface eff ect Electrocatalysis molybdenum oxide Glucose Oxidation reaction

Covalency triggers high catalytic activity of amorphous molybdenum oxides for oxidative desulfurization

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中国科学：化学英文版 2023年第4期66卷 1211-1220页

作者： Juncong Zou Yan Lin Chunping Yang College of Environmental Science and Engineering Hunan University and Key Laboratory of Environmental Biology and Pollution Control(Hunan University)Ministry of EducationHunan UniversityChangsha 410082China Guangdong Provincial Key Laboratory of Petrochemcial Pollution Processes and Control and School of Environmental Science and EngineeringGuangdong University of Petrochemical TechnologyNaoming 525000China School of Environmental and Chemical Engineering Nanchang Hangkong UniversityNanchang 330063China

Oxidative desulfurization(ODS)is a promising technology to produce clean fuel with requiring superior catalysts to lower kinetic *** most ODS catalysts are based on crystalline transition-metal oxides(TMOs),extraordinary activity also can be achieved with amorphous ***,the origin of the remarkable catalytic activity of the amorphous TMOs remains greatly ***,we found the crucial role of Mo–O covalency in ruling the intrinsic catalytic activity of amorphous molybdenum oxides(MoO_(x)).Experimental and theoretical analysis indicated that the nonequivalent connectivity in the amorphous structure strongly enhanced Mo–O covalency,thereby increasing the content of electrophilic oxygen and nucleophilic molybdenum to favor the MoO_(x)–H_(2)O_(2) *** the boosted Mo–O covalency to improve the flexibility of the charge state,the amorphous MoO_(x)-based composite catalyst(PE-MoO_(x)/S-0.05)exhibited outstanding catalytic activity for ODS of fuel *** turnover frequency(TOF)value of the catalyst(18.63 h^(-1))was almost an order of magnitude higher than that of most reported crystalline MoO_(x)/molecular sieve composite *** in-depth understanding of the origin of the amorphous TMOs activity for ODS provides a valuable reference for developing ODS catalysts.

关键词： amorphous molybdenum oxide oxidative desulfurization covalency