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TiO_(2)纳米晶空洞光阳极在染料敏化太阳能电池中的光电增效性能研究

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化工新型材料 2024年第2期52卷 115-119页

作者：李振乔伟强于丽波河西学院化学化工学院张掖734000 河西学院河西走廊特色资源利用重点实验室张掖734000

以含炭微球作为模板,制备了TiO_(2)纳米晶空洞光阳极用于染料敏化太阳能电池(DSSC),通过调整模板的添加量,实现了空洞数目在光阳极中的调控。利用扫描电子显微镜(SEM)、透射电子显微镜(TEM)和X射线衍射(XRD)分析了样品的形貌和结构。结... 详细信息

以含炭微球作为模板,制备了TiO_(2)纳米晶空洞光阳极用于染料敏化太阳能电池(DSSC),通过调整模板的添加量,实现了空洞数目在光阳极中的调控。利用扫描电子显微镜(SEM)、透射电子显微镜(TEM)和X射线衍射(XRD)分析了样品的形貌和结构。结果表明:基于TiO_(2)纳米晶空洞的DSSC,在标准太阳光强度(100mW/cm^(2))辐照下,最佳的短路电流密度(J_(sc))可以达到18.31mA/cm^(2),开路电压(V_(oc))为0.701V,填充因子(FF)为0.578,电池效率(PCE)达到7.4%,相比基于TiO_(2)纳米晶的DSSC 4.4%的电池效率,提高了68.18%,其中J_(sc)的显著提高是电池效率提升的主要因素。光散射、电子寿命的分析表明,适当的空洞结构可以增加光阳极对可见光的散射作用,通过可见光在空洞结构中的多次反射使染料能被多次激发产生光生电子,从而提升了光捕获效率和电子寿命,最终实现了DSSC性能的提高。

关键词：染料敏化太阳能电池纳米晶空洞光阳极含碳微球

德谷胰岛素利拉鲁肽注射液联合二甲双胍在2型糖尿病患者治疗中的效果探讨

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糖尿病新世界 2024年第3期27卷 25-28页

作者：俞立波李莉杨熹太仓市第一人民医院内分泌科江苏太仓215400

目的探究2型糖尿病患者采取德谷胰岛素利拉鲁肽注射液联合二甲双胍治疗的有效性。方法回顾性选取太仓市第一人民医院于2021年9月—2023年10月收治的64例2型糖尿病患者的临床资料,根据治疗方案的不同,将其分成研究组和参考组,每组32例。... 详细信息

目的探究2型糖尿病患者采取德谷胰岛素利拉鲁肽注射液联合二甲双胍治疗的有效性。方法回顾性选取太仓市第一人民医院于2021年9月—2023年10月收治的64例2型糖尿病患者的临床资料,根据治疗方案的不同,将其分成研究组和参考组,每组32例。所有患者均应用了二甲双胍,参考组加用达格列净,研究组加用德谷胰岛素利拉鲁肽注射液。比较两组的治疗效果、血糖水平、胰岛功能、临床指标。结果研究组的治疗总有效率为96.88%,高于参考组的78.13%,差异有统计学意义(χ^(2)=4.939,P<0.05)。治疗后,研究组血糖水平优于参考组,差异有统计学意义(P<0.05)。研究组的胰岛功能优于参照组,差异有统计学意义(P<0.05)。研究组的体质量和总胆固醇水平均低于参考组,差异有统计学意义(P均<0.05)。结论在2型糖尿病患者治疗中选取德谷胰岛素利拉鲁肽注射液联合二甲双胍治疗,可以提高治疗效果,降低血糖水平,增强胰岛功能,优化临床指标。

关键词：德谷胰岛素利拉鲁肽注射液 2型糖尿病二甲双胍

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预期视角下我国大豆价格影响因素研究

中国物价 2024年第10期 13-18页

作者：俞立波鲁统宇孙建明中国计量大学经济与管理学院

本文利用2003-2023年大豆价格的时间序列数据,从预期视角出发并结合大豆产业链上下游关系,运用多元线性回归、联立方程组模型等分析方法,对我国大豆市场价格的影响因素进行了研究,并对其形成机制进行了探讨。结果表明:在影响大豆价格的... 详细信息

本文利用2003-2023年大豆价格的时间序列数据,从预期视角出发并结合大豆产业链上下游关系,运用多元线性回归、联立方程组模型等分析方法,对我国大豆市场价格的影响因素进行了研究,并对其形成机制进行了探讨。结果表明:在影响大豆价格的众多因素中,供需双方的静态预期和国际大豆价格冲击对我国大豆价格的解释力度最大;豆农对大豆价格的预期主要通过种植面积的变化来影响大豆价格;大豆需求水平和替代品价格水平上升共同导致大豆年度价格上涨。

关键词：大豆价格预期联立方程组模型影响因素

Effect of Altitude Error on Position Precision of Double-Star Position System

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Geo-Spatial Information Science 2006年第2期9卷 89-93页

作者： LIN Xueyuan LI Tingjun QIU libo LIN yu Naval Aeronautical Engineering Institute 188 Erma Road Yantai 264001 China

The effects of two kinds of methods for obtaining altitudes on the position precision are analyzed, and the error expressions are deduced. Many simulation results show that in the two cases, the effects of the same altitude errors on the positioning precision are identical, and the rules that the two altitude errors affect positioning precision can be expressed as that altitude error has little effect on the east-west position error, but has large effect on the south-north position error.

关键词： Double-Star position system altitude error digital map barometer

新建本科院校合格评估背景下办学特色培育研究——以南京航空航天大学金城学院为例

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创新创业理论研究与实践 2024年第4期7卷 102-104,116页

作者：于丽波郝萌莉王翠菊南京航空航天大学金城学院江苏南京211156

新建本科院校合格评估指标体系对办学特色有明确要求,但现有新建本科院校还处于由初创期向成熟期过渡的阶段,多数院校办学特色不够鲜明或缺失。针对这一问题,该文提出了凝练办学特色的方法和强化办学特色的建议,以南京航空航天大学金城... 详细信息

新建本科院校合格评估指标体系对办学特色有明确要求,但现有新建本科院校还处于由初创期向成熟期过渡的阶段,多数院校办学特色不够鲜明或缺失。针对这一问题,该文提出了凝练办学特色的方法和强化办学特色的建议,以南京航空航天大学金城学院为例阐述了办学特色培育过程中在专业体系、人才培养、师资队伍、教学资源及特色活动等方面的措施和成效。

关键词：新建本科合格评估办学特色航空特色专业体系人才培养

Manipulating Bloch surface waves in 2D: a platform concept-based flat lens

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Light(Science & Applications) 2014年第1期3卷 370-376页

作者： libo yu Elsie Barakat Tristan Sfez Lubos Hvozdara Joab Di Francesco Hans Peter Herzig Optics&Phatonics Technology Laboratory(OPT) Ecole Polytechinique Federale de Lausanne(EPFL)CH-2000 NeuchatelSwitzerland

At the end of the 1970s,it was confirmed that dielectric multilayers can sustain Bloch surface waves(BSWs).However,BSWs were not widely studied until more *** advantage of their high-quality factor,sensing applications have focused on *** far,no work has been performed to manipulate and control the natural surface propagations in terms of defined functions with two-dimensional(2D)components,targeting the realization of a 2D *** this study,we demonstrate that 2D photonic components can be implemented by coating an in-plane shaped ultrathin(l/15)polymer layer on the dielectric *** presence of the polymer modifies the local effective refractive index,enabling direct manipulation of the *** locally shaping the geometries of the 2D components,the BSW can be deflected,diffracted,focused and coupled with 2D *** BSW manipulation in 2D,the dielectric multilayer can play a new role as a robust platform for 2D optics,which can pave the way for integration in photonic *** near-field measurements are used to study light propagation through micro-and nano-optical *** demonstrate that a lens-shaped polymer layer can be considered as a 2D component based on the agreement between near-field measurements and theoretical *** the focal shift and the resolution of a 2D BSW lens are measured for the first *** proposed platform enables the design of 2D all-optical integrated systems,which have numerous potential applications,including molecular sensing and photonic circuits.

关键词： Bloch surface wave 2D optics manipulation micro-and nano-optics nanophotonics platform

胶体CdSe量子点敏化TiO_(2)太阳能电池中光电转换行为研究

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当代化工研究 2024年第17期 44-46页

作者：王德芳于丽波赵成双李振河西学院化学化工学院甘肃734000 甘肃省河西走廊特色资源利用重点实验室甘肃734000 长春卓谊生物股份有限公司吉林130000

以NaSeH_(4)水溶液、Cd^(2+)水溶液及巯基乙酸为原料采用水热法制备了水溶性CdSe量子点(QDs),并直接敏化在TiO_(2)光阳极上用于量子点敏化太阳能电池(QDSSC)。通过NaSeH_(4)的用量实现了CdSe QDs的尺寸调节和光谱响应范围调控。光伏性... 详细信息

以NaSeH_(4)水溶液、Cd^(2+)水溶液及巯基乙酸为原料采用水热法制备了水溶性CdSe量子点(QDs),并直接敏化在TiO_(2)光阳极上用于量子点敏化太阳能电池(QDSSC)。通过NaSeH_(4)的用量实现了CdSe QDs的尺寸调节和光谱响应范围调控。光伏性能分析表明尺寸约6nm的CdSe QDSSC效率达到2.26%,明显高于尺寸约4nm和10nm的CdSe QDSSC效率(分别为0.62%和1.39%)。光谱和阻抗分析表明合适的CdSe QDs尺寸能扩大光捕获效率并减少光阳极-电解液界面间的电荷复合,从而提高了光电转换效率。

关键词： CdSe量子点量子点敏化太阳能电池光电转换效率

Double-layered TiO_(2) cavity/nanoparticle photoelectrodes for efficient dye-sensitized solar cells

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Frontiers of Materials Science 2023年第1期17卷 153-161页

作者： Zhen Li libo yu College of Chemistry and Chemical Engineering Hexi UniversityZhangye 734000China Key Laboratory of Hexi Corridor Resources Utilization of Gansu Hexi UniversityZhangye 734000China

TiO_(2) nanoparticles(NPs)in the size of-25 nm,namely P25,are very common material as the electron collecting layer in dye-sensitized solar cells(DSsCs).However,the light-scattering improvement of TiO2 NP photoelectrodes is stll a ***,we built TiO2 cavities on the top of the TiO2 NP layer by using carbonaceous microspheres as the template,forming the TiO_(2) cavity/nanoparticle(C/NP)photoelectrode for the application in *** cavity amount in the TiO_(2) C/NP photoelectrode was controlled by adjusting the weight ratio of carbonaceous *** results confirm the successful formation of the double-layered TiO_(2) C/NP electrode.J-V tests show that the optimized TiO_(2) C/NP electrode prepared with 25 wt.%carbonaceous microspheres contributes to remarkable improvement of the short-circuit current density(Jsc)and the power conversion efficiency(PcE).The best photovoltaic performance solar cell with the PCE of 9.08%is achieved with the optimized TiO_(2) C/NP photoelectrode,which is over 98% higher than that of the TiO_(2) NP *** investigations of UV-vis DRS,IPCE,OCVD,and EIS demonstrate that the competition between light scattering effect and charges recombination in this TiO_(2) C/NP photoelectrode is responsiblefor the PCE enhancement.

关键词： titanium dioxide dye sensitized solar cell cavity light scattering

The pseudospectrum and spectrum(in)stability of quantum corrected Schwarzschild black hole

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Science China(Physics,Mechanics & Astronomy) 2024年第10期67卷 55-75页

作者： Li-Ming Cao Jia-Ning Chen Liang-Bi Wu libo Xie yu-Sen Zhou School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUCASHangzhou 310024China Peng Huanwu Center for Fundamental Theory Hefei 230026China Interdisciplinary Center for Theoretical Study and Department of Modern Physics University of Science and Technology of ChinaHefei 230026China

In this study,we investigate the pseudospectrum and spectrum(in)stability of quantum corrected Schwarzschild black ***,we use the hyperboloidal framework to cast the quasinormal mode(QNM)problem into an eigenvalue problem associated with a non-selfadjoint operator,and then the spectrum and pseudospectrum are ***,the invariant subspace method is exploited to improve the computational efficiency for *** investigation into the spectrum(in)stability entails two main *** the one hand,we calculate the spectra of the quantum corrected black hole,then by the means of the migration ratio,the impact of the quantum correction effect on the Schwarzschild black hole has been *** results indicate that the so-called“migration ratio instability”will occur for small black holes with small angular momentum number *** the eikonal limit,the migration ratios remain the same for each *** the other hand,we study the spectrum(in)stability of the quantum corrected black hole by directly adding some particular perturbations into the effective potential,where perturbations are located at the event horizon and null infinity,*** are two interesting observations under the same perturbation energy ***,perturbations at infinity are more capable of generating spectrum instability than those at the event ***,we find that the peak distribution can lead to the instability of QNM spectrum more efficiently than the average distribution.

关键词： quasinormal modes pseudospectrum hyperboloidal coordinate