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Improved Performance of Solid-State Gratzel Solar Cell by Cosensitization of Quantum Dot and Dye

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Chinese Physics Letters 2004年第7期21卷 1391-1393页

作者： LIBin wangli-duo LIJiang-Wei qiuyong DepartmentofChemistry TsinghuaUniversityBeijing100084 KeyLabofOrganicOptoelectronics&MolecularEngineeringofMinistryofEducation Beijing100084

We report a new cosensitization utilizing quantum dot (QD) PbS and Cis-(SCN)2Bis(2,2'-bipyridyl-4,4'-dicarboxylate) ruthenium (N3) dye on the nanoporous TiO2 film. Solid-state Grätzel solar cells with the cosensitized films show an improved overall efficiency by 200% relative to the cells assembled with only N3 sensitization and an extremely high open-circuit voltage of 840mV, and a fill factor of 70.5%. Back reaction characteristics of the above cells are also investigated, demonstrating a great suppression of recombination due to cosensitization. It seems that the cosensitization also facilitates the electron injection into the conduction band of TiO2.

关键词： Solar cells

Fabrication and spectra characteristics of high efficiency white organic light-emitting diodes with single emitting layer

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Chinese Science Bulletin 2004年第20期49卷 2133-2136页

作者： LEIGangtie wangliduo DUANLian qiuyong KeyLaboratoryofOrganicOptoelectronics&MolecularEngineeringofMinistryofEducation.DepartmentofChemistry.TsinghuaUniversity.Beijing100084 China

High-efficiency white organic light-emitting devices with single emitting layer are demonstrated. N,N’- diphenyl-N,N’-bis(1,1’-biphenyl)-4,4’-diamine (NPB) is used as hole transport layer, while 4,7-diphenyl-1,10-phenan- throline (BPhen) as electron transport layer and 9,10-di- (2-naphthyl)-2-terbutyl-anthracene (TADN) doped with the fluorescent dye 4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7- tetramethyljulolidyl-9-enyl) (DCJTB) as single emissive layer. The effects of performance by the concentration of DCJTB and the thickness of emissive layer are studied. The device with a structure of indium tin oxide/NPB (50 nm)/TADN: 0.2% DCJTB (15 nm)/BPhen (40 nm)/Mg: Ag shows a maximum brightness of 11400 cd/m2, a peak current effi-ciency of 5.6 cd/A and power efficiency of 4.1 lm/W, while the low turn-on voltage of 3.1 V and the stability of the Commis-sion International De LEclairage coordinate. The spectra through color filter of the device are also studied.

关键词：光谱特征白光发光二极管单放射层填料电致发光

Preparation and characterization of compact TiO_2 film used in Gratzel solar cells

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Chinese Science Bulletin 2004年第2期49卷 123-127页

作者： LIBin wangliduo ZHANGDeqiang qiuyong DepartmentofChemistry OrganicOptoelectronicsLabTsinghuaUniversityBeijing100084China

We report for the first time the preparation method of compact TiO2 film using titanium butoxide-petroleum ether solution, by means of dipping and sintering. Our estimation of the component of this thin film was confirmed by XPS test. Studies of AFM showed the influence of preparation condition upon surface morphology. The transmitted spectrum of this compact TiO2 film was also investigated, which presented an excellent transmittance of this film in the visible light region. We arrive at a conclusion,according to the I-V characteristics of solid-state Grǎitzel solar cells utilizing this kind of compact film, that this compact TiO2 film functions well in secluding the conducting substrate from the hole-conducting material.

关键词：二氧化钛薄膜太阳能电池形态学 X射线光电子光谱学

Flexible organic light-emitting diodes with ITO/Ag/ITO multi-layers as anodes

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Chinese Science Bulletin 2004年第13期49卷 1328-1331页

作者： LIYang wangliduo CHANGChun DUANLian qiuyong KeyLaboratoryofOrganicOptoelectronics&MolecularEngineeringofMinistryofEducation DepartmentofChemistryTsinghuaUniversityBeijing100084China

The transparent ITO/Ag/ITO multi-layers are developed as anodes on flexible PET (poly(ethylene terephthalate)) substrates. The influence of these anodes on FOLED (Flexible Organic Light-emitting Diodes) is investigated. From the results of research, it can be seen that the multi-layer anode has optimum characteristics, whose sheetresistance is 11 Ω and optical transmittance is about 80%,when the thickness of Ag sandwiched by two ITO layers is in the range of 14--18 nm. It is demonstrated that the OLED devices with multi-layer anodes give better luminescence and higher efficiency compared with those with single ITO anodes.

关键词： ITO/Ag/ITO 多层正极柔性有机光发射二极管聚乙烯基对苯二酸酯

Research on the adhesive ability between ITO anode and PET substrate improved by polyimide buffer layer

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Chinese Science Bulletin 2005年第6期50卷 505-508页

作者： wangliduo LIYang CHANGChun DUANLian qiuyong KeyLaboratoryofOrganicOptoelectronics&MolecularEngineeringofMinistryofEducation DepartmentofChemistryTsinghuaUniversityBeijing100084China

A layer of polyimide is adopted to improve the adhesive ability between common flexible PET (poly(ethylene terephthalate)), generally used in the FOLEDs (flexible or- ganic light-emitting diodes), and ITO anode. It has been demonstrated by the scrape method that great improvement of the critical load value of flexible conductive substrate and lots of melioration of the substrate’s flexibility has been made. Moreover, using such a complex substrate the current den- sity and luminescence of the OLED device are approximately four times as much as those by using common PET substrate.

关键词：阳极聚对苯二甲酸乙二醇酯聚酰亚胺缓冲层有机发光二极管

Advances in targeted therapy mainly based on signal pathways for nasopharyngeal carcinoma

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Signal Transduction and Targeted Therapy 2020年第1期5卷 382-401页

作者： Yuanbo Kang Weihan He Caiping Ren Jincheng Qiao qiuyong Guo Jingyu Hu Hongjuan Xu xingjun Jiang Lei Wang Department of Neurosurgery Cancer Research InstituteXiangya HospitalCentral South University410008 ChangshaHunanChina Cancer Research Institute Collaborative Innovation Center for Cancer MedicineSchool of Basic Medical ScienceCentral South University410008 ChangshaHunanChina The NHC Key Laboratory of Carcinogenesis and The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education Xiangya HospitalCentral South University410008 ChangshaHunanChina

Nasopharyngeal carcinoma(NPC)is a malignant epithelial carcinoma of the head and neck region which mainly distributes in southern China and Southeast Asia and has a crucial association with the Epstein–Barr *** on epidemiological data,both incidence and mortality of NPC have significantly declined in recent decades grounded on the improvement of living standard and medical level in an endemic region,in particular,with the clinical use of individualized chemotherapy and intensity-modulated radiotherapy(IMRT)which profoundly contributes to the cure rate of NPC *** tackle the challenges including local recurrence and distant metastasis in the current NPC treatment,we discussed the implication of using targeted therapy against critical molecules in various signal pathways,and how they synergize with chemoradiotherapy in the NPC *** treatment including targeted therapy and IMRT or concurrent chemoradiotherapy is presumably to be future options,which may reduce radiation or chemotherapy toxicities and open new avenues for the improvement of the expected functional outcome for patients with advanced NPC.

关键词： chemotherapy targeted treatment

习近平关于体育工作重要论述研究的回顾与展望

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体育学刊 2022年第4期29卷 1-7页

作者：付求勇南京大学马克思主义学院江苏南京210023

习近平关于体育工作重要论述是习近平新时代中国特色社会主义思想的重要组成部分,为新时代中国体育发展提供了根本遵循。基于文献分析方法,从形成条件、主要特色、重大意义、践行路径4大视角回顾习近平关于体育工作重要论述的研究现状... 详细信息

习近平关于体育工作重要论述是习近平新时代中国特色社会主义思想的重要组成部分,为新时代中国体育发展提供了根本遵循。基于文献分析方法,从形成条件、主要特色、重大意义、践行路径4大视角回顾习近平关于体育工作重要论述的研究现状并提出展望。现有研究存在内容有待深化、视野有待拓展、方法有待突破的问题,未来研究应从内容上阐释微观问题,增强研究的学术性和创新性;从视野上突破时间、空间与学科界限,向十八大之前、国际领域与跨学科领域延伸;从方法上强化实证研究与定量研究。

关键词：体育思想体育工作重要论述习近平新时代中国特色社会主义思想理论研究