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Low-cost biodegradable lead sequestration film for perovskite solar cells

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Journal of Energy Chemistry 2023年第9期84卷 311-320页

作者： Yiming Xiong Haoyu Cai Wang Yue wenjian shen Xuehao Zhu Juan Zhao Fuzhi Huang Yi-Bing Cheng Jie Zhong State Key Laboratory of Advanced Technology of Materials Composite Technology Wuhan University of TechnologyWuhan 430070HubeiChina Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Foshan 528216GuangdongChina School of Automobile Engineering Wuhan University of TechnologyWuhan 430070HubeiChina

Despite the high efficiency that has been achieved for the perovskite solar cells(PSCs),the hazardous lead leakage from the perovskite absorber layer is one of the crucial barriers still hindering its penetration into the commercial market for a large-scale ***,we report a novel low-cost and biodegradable lead sequestration layer with high compatibility for up-scalable encapsulation of *** a precisely designed cross-linking reaction of chemical agents,the as-made biodegradable chitosan composite film shows enhanced mechanical strength,chemical stability,and lead adsorption *** designed encapsulation strategy reduces over 99.99% lead leakage to <2 ppb under varied simulations of weather conditions(hail,rain,or flood),which meet the safe level of drinking water set by the US Environmental Protection Agency(EPA).Moreover,the PSC efficiency is improved from 21.91% to22.82% due to the improved light absorption from the printed biodegradable lead absorption ***,we present a prototype process of accumulation and recycling of lead compounds in PSCs derbies via the biodegradation *** on the low-cost biodegradable lead sequestration film,this environmental-friendly encapsulation strategy could address the lead leakage issue for further commercialization of PSCs.

关键词： Lead sequestration Cross-linking Perovskite solar cells Biodegradable Recycling

Universal Encapsulation Adhesive for Lead Sedimentation and Attachable Perovskite Solar Cells with Enhanced Performance

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Energy & Environmental Materials 2024年第3期7卷 303-310页

作者： Xuehao Zhu Haoyu Cai Cong Bai Zhengzhe Wu wenjian shen Yiming Xiong Juan Zhao Fuzhi Huang Yibing Cheng Jie Zhong Research Centre for Advanced Thin Film Photovoltaics State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan 430070China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Foshan 528216China School of Automobile Engineering Wuhan University of TechnologyWuhan 430070China

In this work,a modified polyurethane adhesive(PUA)was prepared to realize a convenient encapsulation strategy for lead sedimentation and attachable perovskite solar cells(A-PSCs).The modified PUA can completely self-heal within 45 min at room temperature with an efficient lead ion-blocking rate of 99.3%.The PUA film can be coated on a metal electrode with slight efficiency improvement from 23.96%to 24.15%.The thermal stability at 65℃and the humidity stability at 55%relative humidity(RH)are superior to the devices encapsulated with *** PUA film has strong adhesion to the flexible substrate and the initial efficiency of the flexible perovskite module(17.2%)encapsulated by PUA remains 92.6%within 1825 *** results suggest that PUA encapsulation is universal for rigid and flexible PSCs with enhanced stability and low lead ***,it was found that flexible PSCs can be well attached to various substrates with PUA,providing a facile route for the A-PSCs in various scenarios without additional encapsulation and installation.

关键词： adhesive attachable device flexible module lead leakage polyurethane

In-situ defect passivation assisted three-step printing of efficient and stable formamidine-lead bromide solar cells

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Journal of Energy Chemistry 2024年第9期96卷 396-405页

作者： Hang Yang Tao Zhou Haoyu Cai wenjian shen Hao Chen Yongjun Liu Juan Zhao Yi-Bing Cheng Jie Zhong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Foshan 528216GuangdongChina School of Automobile Engineering Wuhan University of TechnologyWuhan 430070HubeiChina

Perovskite solar cells(PSCs)emerge as the most promising photovoltaics(PV)for their high performance and potential convenient cost-effective production routes comparing to the sophomore PV *** printed PSCs with simplified device architecture and fabrication procedures could further enhance the competitive strength of PSC *** this work,we present an in-situ defect passivation(ISDP)assisted full-printing of high performance formamidine-lead bromide(FAPbBr_(3))*** three rapid printing steps are involved for electron transporting layer(ETL),perovskite and carbon to form a complete solar cell on the low-cost fluorine-doped tin oxide(FTO)***-chain polymer monomethyl ether polyethylene glycol is particularly utilized as the ISDP passivator,leading to conformal coating on the rough FTO and defect passivation for both ETL and perovskite during printing.A high efficiency of 10.85%(certified 10.14%)and a high V_(oc)up to 1.57 V are achieved for the printed *** unencapsulated PSCs maintain above 90%of the initial efficiency after continuously heating at 85℃for 1000 h and over 80%of the efficiency after the maximum power point tracking for 3500 *** fully printed semitransparent PSCs with carbon grids(CGs)show average visible light transmittance over 33%and an efficiency of 8.81%.

关键词： Formamidinium lead bromide Fully printed Lowcosts Carbon electrode Semitransparent

In-situ monitored chemical bath deposition of planar NiO x layer for inverted perovskite solar cell with enhanced efficiency

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Journal of Materials Science & Technology 2023年第2期133卷 145-153页

作者： Liqi Li wenjian shen Chenquan Yang Yuxi Dou Xuehao Zhu Yao Dong Juan Zhao Junyan Xiao Fuzhi Huang Yi-Bing Cheng Jie Zhong State Key Laboratory of Advanced Technology of Materials Composite Technology Wuhan University of TechnologyWuhan 430070China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Foshan 528216China School of Automobile Engineering Wuhan University of TechnologyWuhan 430070China School of Materials Science and Technology Wuhan University of TechnologyWuhan 430070China

As a convenient,low-cost and up-scalable solution route,chemical bath deposition(CBD)has exhibited impressive advantages in fabricating electron transporting materials like SnO_(2),achieving record efficien-cies for regular n-i-p perovskite solar cells(PSCs).However,for the hysteresis-free and potentially more stable inverted p-i-n PSCs,CBD processing is rarely studied to improve the device *** this work,we first present a CBD planar NiO x film as the efficient hole transport layer for the inverted per-ovskite solar cells(IPSCs).The morphologies and semiconducting properties of the NiO x film can be ad-justed by varying the concentration of[Ni(H 2 O)x(NH 3)6-x]2+cation via in-situ monitoring of the CBD re-action *** characterizations of ultraviolet photoelectron spectroscopy,transient absorption spec-troscopy,time-resolved photoluminescence suggest that the CBD planar NiO x film possesses enhanced conductivity and aligned energy band levels with perovskite,which benefits for the charge transport in the *** devices based on planar NiO x at 50°C and low nickel precursor concentration achieved an enhanced efficiency from 16.14%to 18.17%.This work established an efficient CBD route to fabricate planar NiO x film for PSCs and paved the way for high performance PSCs with CBD-prepared hole transporting materials.

关键词： Nickel oxide Perovskite solar cell Chemical bath deposition Planar NiO x film

Aqueous Sn-S Complex Derived Electron Selective Layer for Perovskite Solar Cells

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Journal of Wuhan University of Technology(Materials Science) 2020年第2期35卷 272-279页

作者： LI Zhi shen wenjian ZHAO Juan YING Hangkai WU Zhengli LIU Yifan LI Wangnan KU Zhiliang PENG Yong HUANG Fuzhi CHENG Yibing ZHONG Jie FU Zhengyi State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China Hubei Research Center for New Energy&Intelligent Connected Vehicle Wuhan University of TechnologyWuhan 430070China Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hu-bei University of Arts and ScienceXiangyang 441053China

A novel aqueous Sn-S complex solution was applied as precursor to fabricate SnO2 electron selective layers (ESLs) for the hybrid perovskite solar cells (PSCs).The tin and sulfur powder were directly dissolved in a (NH4)2S water solution to form Sn-S *** depositon and annealing,the SnO2 film was formed,presenting as a low cost and enviromental friendly method for preparation of *** films showed excellent transmittance at visible wavelength ***,the method exhibited high compatibility for doping using Cu,Cd,Li,and Zn *** doping (0.05 M) in the as-prepared SnO2 ESL significantly improved perovskite solar cells (PSCs) *** highest PCE of 13.17% was achived with 15% enhancement compared to that of undoped SnO2 ESL ***4 modifications on SnO2 film improved photovoltaic performance to 14.45%,but resulted in the poor long-term stability,around 80% more degredation than that of PSCs based on Zn-doped SnO2 films.

关键词： perovskite solar cell aqueous solution SnO2 Sn-S complex electron selective layer

我国人力资本地区分布差异与经济增长差异同步性分析

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价值工程 2010年第2期29卷 34-35页

作者：赵和余申文件安徽财经大学研究生部蚌埠233041

许多研究表明,区域人力资本对区域经济增长具有正面的影响,并且人力资本对经济增长的贡献远远大于物质资本的作用[1][2]。这些都能表明,人力资本能促进经济增长,是经济增长的主要动力之一,其对经济增长的作用正在不断加强[3][4]。本文... 详细信息

许多研究表明,区域人力资本对区域经济增长具有正面的影响,并且人力资本对经济增长的贡献远远大于物质资本的作用[1][2]。这些都能表明,人力资本能促进经济增长,是经济增长的主要动力之一,其对经济增长的作用正在不断加强[3][4]。本文通过构建人力资本模型对我国人力资本地区分布差异与经济增长差异进行同步性分析,得出我国人力资本地区分布差异与经济增长差异存在一定程度上的同步性这一结论。

关键词：人力资本分布差异经济增长同步性

实时工业物联网的功率域非正交多址接入基站选址算法

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计算机应用 2023年第1期43卷 209-214页

作者：孙源沈文建倪朋勃毛敏谢雅琪徐朝农中法渤海地质服务有限公司天津300450 中国石油大学(北京)信息科学与工程学院北京102249

针对工业物联网(IoT)中接入延迟较大的问题,提出一种实时工业IoT的功率域非正交多址接入(PDNOMA)基站选址算法。该算法在PD-NOMA技术的基础上,以数据收集基站的位置为优化手段,通过最大限度地实现用户功率分复用来实现接入延迟的最小化... 详细信息

针对工业物联网(IoT)中接入延迟较大的问题,提出一种实时工业IoT的功率域非正交多址接入(PDNOMA)基站选址算法。该算法在PD-NOMA技术的基础上,以数据收集基站的位置为优化手段,通过最大限度地实现用户功率分复用来实现接入延迟的最小化。首先,证明对任意两用户若实现它们的并行传输,则合格的基站可解码区域必为圆,因此,所有的两用户组合可得到基站可解码区域的集合,且集合中区域间的每个最小相交区域必为凸区域,从而可知这些最小相交区域必定包含数据收集基站的最优位置。然后,对于每一个最小相交区域,以基站放置在该区域的网络生成图的最小链划分数作为接入延迟的度量标准。最后,通过最小链划分数的比较得出基站的最优位置。实验结果表明,解码阈值为2用户数为30时,所提算法的平均接入延迟降低为经典时分多路方式的36.7%,并且随着解码阈值的降低和信道衰减因子的增加,接入延迟可获得近似线性的降低。所提算法对海量超可靠低延迟通信从接入层角度提供了参考。

关键词：工业物联网接入延迟功率域非正交多址接入最小链划分选址

CA地区低渗砂岩动静态弹性模量转换关系研究

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海洋石油 2022年第2期42卷 61-66页

作者：孙源荆文明倪朋勃沈文建中法渤海地质服务有限公司天津300457

在油气开发中,岩石动静态弹性模量转换关系的研究对于储层可压性以及压裂效果评价尤为重要。选取CA地区4口取心井23块岩样开展室内纵横波测量实验和三轴应力实验,建立了纵横波时差关系、纵波时差与体积密度关系,并在此基础上,建立了动... 详细信息

在油气开发中,岩石动静态弹性模量转换关系的研究对于储层可压性以及压裂效果评价尤为重要。选取CA地区4口取心井23块岩样开展室内纵横波测量实验和三轴应力实验,建立了纵横波时差关系、纵波时差与体积密度关系,并在此基础上,建立了动静态弹性模量的转换关系模型。利用未参与建模的6块样品做精度对比和可靠性分析,计算的静态杨氏模量和泊松比与实验测量值都分布在对角线45°线上,静态杨氏模量计算的绝对误差平均值为0.623 GPa,泊松比计算的绝对误差平均值为0.022,说明此次实验建立的动静态弹性模量转换关系精度满足生产需要,为评价地层可压性及设计合理的压裂方案提供技术支持。

关键词：杨氏模量泊松比动静态参数转换孔隙度纵横波速度

补益中药对老龄雄性大鼠下丘脑神经递质—性腺轴机能作用的研究

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上海医科大学学报 1991年第5期18卷 373-378页

作者：张新民沈自尹王文健张玲娟陈素珍上海医科大学中西医结合研究所

本文通过对3、18和24月龄雄性大鼠下丘脑NE、DA、5-HT、5-HIAA和下丘脑、垂体LRH;垂体、血LH;血E_2、T的测定,研究了老龄大鼠下丘脑神经递质及性腺轴机能的增龄性变化,并在此基础上探讨了补益中药对老龄大鼠下丘脑—垂体—性腺轴机能的... 详细信息

本文通过对3、18和24月龄雄性大鼠下丘脑NE、DA、5-HT、5-HIAA和下丘脑、垂体LRH;垂体、血LH;血E_2、T的测定,研究了老龄大鼠下丘脑神经递质及性腺轴机能的增龄性变化,并在此基础上探讨了补益中药对老龄大鼠下丘脑—垂体—性腺轴机能的作用。结果提示:老龄大鼠下丘脑机能的衰退可能是性腺轴机能衰退的主要原因;补益中药对老龄大鼠性腺轴机能的作用很可能是通过“改善”或“延缓”下丘脑或更高中枢调控机能的老年性变化来实现的。

关键词：补益中药性腺轴机能抗衰老