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第八届新型太阳能材料科学与技术学术研讨会

作者： guiqiang Wang Jieqiong liu Bohai University

All-inorganic CsPbIBr perovskite has been regarded as a promising candidate for perovskite solar cells(PSCs) considering its suitable bandgap and high stability. However, the poor quality of CsPbIBr film greatly impedes the performance improvement of CsPbIBr-based PSCs. Herein, we report a facile strategy to improve the quality of CsPbIBr perovskite film by introducing cellulose acetate(CA) into the perovskite precursor solution. The interaction between the oxygen functional groups of CA and Pb and the increase of the precursor viscosity induced by CA addition can slow down the crystallization rate of CsPbIBr perovskite, which allows the perovskite films have enough time to form highquality crystal structure. By optimizing the amount of CA( the optimal amount of CA is 2.5 wt%), a high-quality CsPbIBr perovskite film with high crystallinity, large grain size, and smooth surface is obtained. As consequence, the carbon-based PSC with a structure of FTO/TiO/perovskite/carbon using the CsPbIBr perovskite film with 2.5 wt% CA achieves a champion efficiency of 7.52%, which is increased by 40.8% compared with the cell based on pure CsPbIBr perovskite film. In addition, the PSC based on CsPbIBr film with CA exhibits an excellent long-term stability under both ambient condition and high-humidity environment.

关键词： cellulose acetate quality improvement perovskite solar cell

Mass transfer,detection and repair technologies in micro-LED displays

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Science China Materials 2022年第8期65卷 2128-2153页

作者： guiqiang Zhu Yijing liu Rui Ming Feng Shi Mengjiao Cheng State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical TechnologyBeijing 100029China

Micro-light emitting diode(micro-LED)is an emerging display technology with excellent performance of high contrast,low power consumption,long lifetime,and fast response time compared with the current display(e.g.,liquid crystal and organic LED(OLED)).With technological advantages,micro-LED holds promise to be widely applied in augmented reality(AR),flexible screens,*** is thus regarded as the next generation of display *** the process flow of micro-LED,the step known as mass transfer that requires transferring millions of micro-LEDs from a growth substrate to a display plane,is one of the key challenges limiting the commercialization of micro-LED from *** academic and industrial efforts have been devoted to developing mass transfer strategies with purposes of improving yield and reducing *** we review three main categories of mass transfer technologies for micro-LED display(pick-and-place,fluid self-assembly and laser-enabled advanced placement)and the coupled detection and repair technologies after *** and comparisons have been provided about the underlying general principle,history,and representative parties,advantages,and disadvantages(yield/efficiency/cost)of these *** further envision the application prospect of these transfer technologies and the promise of the future display of micro-LED.

关键词： micro-LED mass transfer detection and repair of micro-LED pick-and-place self-assembly

Quantitative prediction of mixed-source crude oils and its significance for understanding oil accumulation in subtle pools in the Dongying Depression,Bohai Bay Basin

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Petroleum Science 2008年第3期5卷 203-211页

作者： Li Sumei liu Keyu Pang Xiongqi Li Maowen Jiang Zhenxue Qiu guiqiang Gao Yongjin Key Laboratory for Hydrocarbon Accumulation Mechanism of the Ministry of Education. Basin ＆ Reservoir Research Center. China University of Petroleum. Beijing 102249 CSIRO Petroleum. P.O. Box 1130. Bentley WA 6102. Australia Geological Survey of Canada. 3303-33 Street NW Calgary. Alberta T2L 2A7. Canada Shengli Oilfield Conapany. SINOPEC. Dongying. Shandong 257015. China

Conventional geochemical approaches were utilized in the quantitative prediction of the proportions of mixed-source crude oils derived from the Es3 and ES4 members of the Paleogene Shahejie Formation. The mixed-source oils are accumulated in the middle interval of the Es3 member （Es3 M） in the Niuzhuang Sag, which is one of the sags where subtle traps are primarily of lenticular basin-floor turbidite sands within mudstones mostly developed in the Dongying Depression, Bohai Bay Basin. The result showed that about 18-92% of the mixed-source oils were derived from the Es4 source rocks with an average of 55-60%）. Reservoirs associated with deep faults appear to have much more Es4 genetic affinity oils. A high proportion of the Es4-derived oils discovered in the Es3 M subtle lithological traps in the Niuzhuang Sag have long migration distances. This suggests that surrounding source rocks might not necessarily control the hydrocarbon supply for subtle traps. Subtle migration pathway may play an important role in the vertical oil migration. The traditional concept of hydrocarbons accumulation in these tenticular turbidite sandstone traps within a short migration distance from the surrounding source rocks is not supported by this study. The present result is also consistent with our previous findings that immature oils in the Bamianhe Oilfield in the south slope of the Niuzhuang Sag were actually mixed-source oils mostly sourced from the Es4 in the depocenter of the Niuzhuang Sag, and the petroleum potential of the ES4 member in the Dongying Depression should therefore be re-evaluated.

关键词： Niuzhuang Sag lithological oil pool. mixed-source oil quantitative prediction

Multifunctional CuSCN interlayer in carbon electrode-based CsPbIBr2 all-inorganic perovskite solar cells for boosting the efficiency and stability

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Multifunctional CuSCN interlayer in carbon electrode-based C...

第七届新型太阳能电池材料科学与技术学术研讨会

作者： guiqiang Wang Jieqiong liu Miao Lei Wei Zhang School of New Energy Bohai University

Carbon electrode-based all-inorganic perovskite solar cells(PSCs) without hole-transport materials are attracting extensive interest due to their low cost,simple fabrication process,and high ***,the conversion efficiency of carbon electrode-based PSCs is far from satisfactory owing to serious charge recombination at the inorganic perovskite/carbon interface,which mainly derives from the mismatched energy level between inorganic perovsikte film and carbon ***,a hydrophobic CuSCN film is introduced into carbon electrode-based CsPbIBr all-inorganic PSCs as a multifunctional interlayer between CsPbIBr perovskite film and carbon electrode to form a favorable interfacial energy level alignment and protect CsPbIBr perovskite from ambient *** is found that introducing CuSCN interlayer can not only enhance the hole extraction and suppress the charge recombination in carbon electrode-based CsPbIBr all-inorganic PSCs,but also improve the stability of the ***,the very strong interaction between SCN and Pb remarkably reduce the surface defects of CsPbIBr perovskite ***,the device with CuSCN interlayer displays an improved power conversion efficiency of 7.30% in comparison with 5.19% for the device without CuSCN interlayer as well as an excellent long-term stability under the ambient condition.

关键词： CuSCN interlayer Inorganic perovskite solar cells carbon electrode

Study of Inlet Valve Seat Protrusion Effect on GTDI Engine Flow Box

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Study of Inlet Valve Seat Protrusion Effect on GTDI Engine F...

2020中国汽车工程学会年会暨展览会

作者： Wang Mingming Zhang Yonggang liu Dong Zhang guiqiang Ningbo Geely Royal Engine Components Co. Ltd

The protrusion between inlet valve seat machining surface and combustion chamber casting surface effects tumble ratio of high BTE（＞ 40%） GTDI engine flow *** ratio could increase by appropriate step,and decrease by higher or lower *** results show that protrusion machined by one-process can get better tumble ratio than *** FEV evaluation methodology,some variants were taken into this research,upper tolerance（+0.36 mm） step shows nearly same charge motion level like nominal flow box（+0.1 mm） and reaches only slightly lower first tumble peak,bottom tolerance（-0.16 mm） step shows lower first tumble peak but at second tumble peak difference are *** designs in the tolerance reach the same TKE around spark plug at igniting ***’s a very low and similar wall film level for all steps in the range of *** last,two prototype cylinder head samples with +0.1 mm and +0.25 mm step were tested on AVL flow test *** result shown that the tumble ratio of +0.1 mm step increase 4.3%,but coefficient flow decreases 3.3%,following with CFD result trend.

关键词： high BTE GTDI engine protrusion of inlet valve seat and chamber tumble ratio flow-box performance

有机硅改性水性UV磺酸盐型聚氨酯乳液的研制

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有机硅材料 2024年第4期38卷 6-14页

作者：张祥龙刘珠欧阳雨鸣李燕强娜熊前程刁贵强刘嘉怡朱茵沈琪力郭永华易玥肖定书惠州学院大亚湾化工新材料学院惠州学院大亚湾化工研究院惠州学院化学与材料工程学院广东省教育厅先进材料涂层与表界面技术开发团队惠州市先进涂层材料工程技术研究中心广东惠州516007 广东立邦长润发科技材料有限公司广东惠州516200 广东省蜂巢纳米材料有限公司广东惠州516229

以3种不同羟值的聚酯磺酸型二元醇(BY-3303、BY-3305及BY-3306)为磺酸盐软段,羟基硅油PMX0156为有机硅软段,异佛尔酮二异氰酸酯(IPDI)为硬段,1,4-丁二醇(BDO)为扩链剂,制得系列有机硅改性水性磺酸盐型聚氨酯丙烯酸酯乳液(SWPUA)。系统... 详细信息

以3种不同羟值的聚酯磺酸型二元醇(BY-3303、BY-3305及BY-3306)为磺酸盐软段,羟基硅油PMX0156为有机硅软段,异佛尔酮二异氰酸酯(IPDI)为硬段,1,4-丁二醇(BDO)为扩链剂,制得系列有机硅改性水性磺酸盐型聚氨酯丙烯酸酯乳液(SWPUA)。系统研究了异氰酸酯与羟基的物质的量比(R值)、磺酸盐基含量及有机硅含量对SWPUA乳液外观、粒径、储存稳定性、热储稳定性以及固化后漆膜的硬度、附着力、吸水率、水接触角与力学性能的影响。结果表明,通过红外及核磁验证了胺酯化反应成功合成了SWPUA;当磺酸盐聚酯二元醇选用BY-3303且BY-3303、PMX0156与BDO物质的量比为1.5∶0.3∶1.0、R值为1.3时,制得的SWPUA外观为乳白泛蓝乳液,固含量约为40%,具有较低黏度和粒径,黏度(涂4#杯)为96 s,粒径为312 nm且储存稳定性与热储稳定性较佳;该条件下,SWPUA漆膜的综合性能较佳,铅笔硬度为1H、附着力达4B级、水接触角为93.2°、吸水率为2.43%、拉伸强度为8.14 MPa、断裂伸长率为327.47%。SWPUA还可在30 s内快速交联成型,引入有机硅链段一定程度上克服了氧阻聚,提高了双键转化率,转化率可达93%。

关键词： UV固化有机硅改性磺酸盐水性聚氨酯乳液

High-performance carbon electrode-based CsPbI2Br inorganic perovskite solar cell based on poly(3-hexylthiophene)-carbon nanotubes composite hole-transporting layer

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High-performance carbon electrode-based CsPbI2Br inorganic p...

第六届新型太阳能电池材料科学与技术学术研讨会

作者： guiqiang Wang Jieqiong liu Ke Chen Rajesh Pathak Qiquan Qiao School of New Energy Bohai University Center for Advanced Photovoltaics Department of Electrical Engineering and Computer ScienceSouth Dakota State University

CsPbIBr inorganic perovskite has been considered as a promising candidate for application in photovoltaic devices due to its high thermal stability and reasonable bandgap of 1.92 eV. However, CsPbIBr perovskite is sensitive to moisture, which remarkably deteriorates the stability of CsPbIBr perovskite solar cells in ambient condition. Here, by using hydrophobic poly(3-hexylthiophene)(PHT) layer to prevent moisture ingress in conjunction with multiwalled carbon nanotubes(MWCNTs) for enhancing holes extraction and transport, we develop a stable and high-performance carbon electrode-based CsPbIBr inorganic perovskite solar cell(PSC). The champion device achieves a conversion efficiency up to 10.01% with stabilized efficiency of 8.85%. In addition, the as-prepared carbon electrode-based CsPbIBr PSC exhibits an excellent long-term stability. The device without encapsulation retains ～85% of its initial value over 240 h, when is stored in the ambient air(～35% R.H.).

关键词： hole-transporting layer carbon electrode inorganic perovskite solar cells

2009—2018年新疆南疆审定小麦品种特性及推广情况分析

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大麦与谷类科学 2024年第2期41卷 42-48页

作者：范贵强方辉丁银灯赛都拉·玉苏甫高永红黄天荣周琰张叶亭张洋军尚亚伟刘梅新疆农业科学院粮食作物研究所新疆乌鲁木齐830091 新疆维吾尔自治区种业发展中心新疆乌鲁木齐830006 泽普县农业技术推广中心新疆泽普844800 莎车县瓜菜果产业发展中心新疆莎车844700

通过明确新疆南疆冬小麦产区21世纪以来审定品种的品种特性,可为区域内品种审定及引进提供参考。对2009—2018年间参加新疆维吾尔自治区南疆区域试验并通过审定的小麦品种的产量、部分农艺性状、抗病性及推广情况进行分析。结果显示:10... 详细信息

通过明确新疆南疆冬小麦产区21世纪以来审定品种的品种特性,可为区域内品种审定及引进提供参考。对2009—2018年间参加新疆维吾尔自治区南疆区域试验并通过审定的小麦品种的产量、部分农艺性状、抗病性及推广情况进行分析。结果显示:10年间审定的小麦品种单位面积产量水平集中在450~500 kg/667 m^(2),审定品种较对照增产幅度显著增加。农艺性状方面,暂无较对照新冬20号早熟的特早熟品种,株高、千粒质量较新冬20号增加,穗粒数、容重较对照新冬20号减少。6个品种在审定后得以推广,2个品种年度播种面积超过6万hm^(2),1个品种年播种面积达到6.67万hm^(2)。现有引进审定品种推广度低,故需要结合区域需求引进品种,并增加引进品种对区域产业发展的贡献。现有品种审定流程已基本完备,但品质指标需要进一步优化。

关键词：冬小麦新品种农艺性状推广

High-performance carbon electrode-based CsPbI2Br inorganic perovskite solar cell based on poly（3-hexylthiophene）-carbon nanotubes composite hole-transporting layer

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High-performance carbon electrode-based CsPbI2Br inorganic p...

中国化学会第二十次全国电化学大会

作者： guiqiang Wang Jieqiong liu Ke Chen Rajesh Pathak Ashim Gurung Qiquan Qiao School of New Energy Bohai University Center for Advanced Photovoltaics Department of Electrical Engineering and Computer Science South Dakota State University

CsPbI2Br inorganic perovskite has been considered as a promising candidate for application in photovoltaic devices due to its high thermal stability and reasonable bandgap of 1.92 e V. However, CsPbI2Br perovskite is sensitive to moisture, which remarkably deteriorates the stability of CsPbI2Br perovskite solar cells in ambient condition. Here, by using hydrophobic poly（3-hexylthiophene）（P3HT） layer to prevent moisture ingress in conjunction with multiwalled carbon nanotubes （MWCNTs） for enhancing holes extraction and transport, we develop a stable and high-performance carbon electrode-based CsPbI2Br inorganic perovskite solar cell （PSC）.

关键词：

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考虑安装工艺的多特征模型匹配定位

哈尔滨工程大学学报 2019年第8期40卷 1393-1398页

作者：杨贵强刘玉君李瑞汪骥大连理工大学船舶工程学院辽宁大连116024 大连理工大学工业装备结构分析国家重点实验室辽宁大连116024 大连理工大学高新船舶与深海开发装备协同创新中心辽宁大连116024

船体分段匹配定位精度直接影响分段建造几何误差评定,评价参数对船舶分段精度管理起着至关重要的作用,采用常规位姿匹配方法很难满足多特征模型定位问题。为了获得船体分段最佳匹配位姿,本文给出合理建造精度评价,依据数据配准技术的误... 详细信息

船体分段匹配定位精度直接影响分段建造几何误差评定,评价参数对船舶分段精度管理起着至关重要的作用,采用常规位姿匹配方法很难满足多特征模型定位问题。为了获得船体分段最佳匹配位姿,本文给出合理建造精度评价,依据数据配准技术的误差分配最优化理论,开展考虑安装工艺的多特征模型依次配准定位研究,按照区域精度差异对特征断面依次进行位姿定位。基于模型转换理论集成区域公差约束的迭代求解,是寻求船舶建造过程中精度尺寸监控的实用性技术。理论和实际算例表明了该方法的有效性及相对于传统最小二乘法的合理性,为船舶建造精度修正和后续装配提供定量参数。

关键词：船体分段精度控制多特征模型区域精度配准依次定位误差分配定量分析