检索结果-南通市图书馆

Review on engineering two-dimensional nanomaterials for promoting efficiency and stability of perovskite solar cells

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2022年第5期31卷 154-175页

作者： Qingwei Zhou jialong duan Yanyan duan Qunwei Tang Institute of New Energy Technology College of Information Science and TechnologyJinan UniversityGuangzhou 510632GuangdongChina State Centre for International Cooperation on Designer Low-Carbon and Environmental Material(SCICDLCEM) School of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001HenanChina

Perovskite solar cell(PSC) has gradually shown its great superiority in photovoltaic filed to compete commercial solar cells owing to its great advantages, such as high efficiency and low fabrication cost. On the way towards commercialization, great efforts have been achieved by accelerating charge extraction and reducing carrier recombination. Recently, two-dimensional(2 D) layered materials have attracted increasing interests for application in PSCs due to their distinctive chemical and physical properties, such as high carrier mobility and tunable bandgap, which greatly determines the perovskite film growth kinetics, carrier transfer and stability of PSCs. Therefore, with the aim to better understand their recent development and application in PSC, in this review, the emerging 2D materials beyond graphene as charge transport layers, buffer layers and additives in perovskite film for enhancing the efficiency and stability of PSCs are summarized. However, there are still some crucial challenges to be addressed for commercialization. Finally, the challenges and prospects of these 2D nanomaterials for application in PSCs are further proposed for future development.

关键词： Perovskite solar cells 2D materials Interface engineering Charge transfer Stability

在线全文

学校读者我要写书评

暂无评论

长株潭城市群产业协同创新的基础与路径研究

武陵学刊 2024年第4期49卷 34-45页

作者：熊曦宁泷段佳龙中南林业科技大学商学院湖南长沙410004 中国林业科学研究院林业科技信息研究所北京100091

产业协同创新是引领城市群高质量发展的重要抓手。长株潭城市群作为我国中部地区高质量发展的重要支撑板块,具有较好的产业创新基础和发展潜力。如何进一步提升长株潭城市群的产业协同创新能力,是推动其打造全国重要增长极亟待解决的关... 详细信息

产业协同创新是引领城市群高质量发展的重要抓手。长株潭城市群作为我国中部地区高质量发展的重要支撑板块,具有较好的产业创新基础和发展潜力。如何进一步提升长株潭城市群的产业协同创新能力,是推动其打造全国重要增长极亟待解决的关键问题和核心难题。就目前来看,长株潭城市群在产业协同创新发展上存在政策协同不够、协同机制不够健全、产业结构优化不足、基础设施不够完善、产业链整合层次较低、产业生态创新力度不够大、技术创新与转化较缓慢、人才流动不够畅、融资仍然较难等问题,为此,要推动长株潭城市群产业协同创新,实现长株潭城市群的高质量发展,必须实现体系协同、资源协同、产业链协同和要素市场协同。

关键词：高质量发展长株潭城市群产业协同创新路径

在线全文

学校读者我要写书评

暂无评论

既有建筑中分隔墙的现场检测及承载力复核

山西建筑 2024年第1期50卷 55-58,66页

作者：陈显文端家龙黄海涛南京工大建设工程技术有限公司江苏南京210009 兴化市住建局江苏兴化225700

针对既有建筑内分隔墙,探讨不同检测方法下砂浆强度检测值的选择、上部墙体在不同边界条件下的高厚比差异及条形基础抗倾覆的荷载选择;通过一厂房高大隔墙的安全性检测案例及反算,掌握自承重墙承载力复核中水平力的意义。

关键词：砌体自承重墙砂浆检测强度高厚比基础抗倾覆水平力

南方集体林区县域经济林产业发展模式——以贵州省荔波县为例

在线全文

学校读者我要写书评

暂无评论

林业科技通讯 2024年第5期 1-7页

作者：宁攸凉段佳龙戴栓友龚洪恩中国林业科学研究院林业科技信息研究所北京100091 中国林业科学研究院亚热带林业实验中心江西分宜336600

产业兴旺是乡村振兴的重要基础,经济林产业是乡村产业的重要组成部分。本文依据产业组织理论构建“政府规制-市场结构-市场行为-综合效益”(R-SCP)范式,以贵州省荔波县为例,总结提炼南方集体林区县域经济林产业发展模式,分析发展模式的... 详细信息

产业兴旺是乡村振兴的重要基础,经济林产业是乡村产业的重要组成部分。本文依据产业组织理论构建“政府规制-市场结构-市场行为-综合效益”(R-SCP)范式,以贵州省荔波县为例,总结提炼南方集体林区县域经济林产业发展模式,分析发展模式的主要特征和运行机制。分析结果表明:1)南方集体林区县域经济林产业发展模式总体上呈现“两增、两产、三带”典型特征,即“就业增加、林农增收”的“两增”的发展目标,“生产有序、产品安全”的“两产”发展标准,“基层组织带动型、合作社带动型、能人大户带动型”的“三带”发展路径;2)南方集体林区县政府主要通过强化规划引领、加大用地政策支持、加强生态保护、扶持龙头企业发展、强化科技支撑、完善基础设施建设,有力推动县域经济林产业发展;3)南方集体林区县域经济林产业产品同质化程度高,市场集中度低,市场进出壁垒低,市场结构接近完全竞争市场、垄断竞争市场;4)为避免价格战,生产者通常会采取非价格行为、组织调整行为,提高产品差异化程度,同时推动外部市场活动内部化;5)从经济效益、社会效益与生态效益看,经济林产业发展模式优化对县域经济高质量发展具有重要意义。

关键词：林业经济管理乡村振兴经济林发展模式 R-SCP范式县域经济

Stretchable alkenamides terminated Ti_(3)C_(2)T_(x)MXenes to release strain for lattice-stable mixed-halide perovskite solar cells with suppressed halide segregation

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Carbon Energy 2023年第12期5卷 21-30页

作者： Xuemei Yao jialong duan Yuanyuan Zhao Junshuai Zhang Qiyao Guo Qiaoyu Zhang Xiya Yang Yanyan duan Peizhi Yang Qunwei Tang Institute of Carbon Neutrality College of Chemical and Biological EngineeringShandong University of Science and TechnologyQingdaoShandongChina Key Laboratory of Advanced Technique and Preparation for Renewable Energy Materials Ministry of EducationYunnan Normal UniversityKunmingYunnanChina College of Mechanical and Electronic Engineering Shandong University of Science and TechnologyQingdaoShandongChina College of Information Science and Technology Jinan UniversityGuangzhouGuangdongChina School of Materials Science and Engineering State Centre for International Cooperation on Designer Low-Carbon and Environmental Material(SCICDLCEM)Zhengzhou UniversityZhengzhouHenanChina

Bandgap-tunable mixed-halide perovskite materials have attracted considerable interest because of their indispensability as top counterparts in tandem solar ***,the soft and disordered lattice always suffers from severe phase segregation under illumination,which is particularly susceptible to residual lattice ***,we report a strain regulation strategy by using alkenamides terminated Ti_(3)C_(2)T_(x)MXenes as an additive into perovskite *** from the role of a template for grain growth to obtain high-quality films,the stretchable alkyl chain promotes lattice shrinkage or expansion to form an elastic grain boundary to eliminate the spatially distributed stain and shut down ion migration *** a result,the all-inorganic perovskite solar cells based on CsPbIBr_(2)and CsPbI_(2)Br halides achieve prolonged device stability under harsh conditions and the best power conversion efficiencies up to 11.06%and 14.30%,respectively.

关键词： all-inorganic perovskite solar cells defect passivation halide segregation stability strain relaxation

Well-aligned Ni Pt alloy counter electrodes for high-efficiency dye-sensitized solar cell applications

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2019年第3期28卷 49-56页

作者： Zhibin Pang Yuanyuan Zhao Yanyan duan jialong duan Qunwei Tang Liangmin Yu School of Materials Science and Engineering Ocean University of China Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education Ocean University of China

Development of cost-effective and robust counter electrodes(CEs) is a persistent objective for highefficiency dye-sensitized solar cells(DSSCs). To achieve this goal, we present here the hydrothermal synthesis of well-aligned Ni Pt alloy CEs, which is templated by ZnO nanowires and nanosheets. The preliminary results demonstrate that Ni Pt alloy electrodes are featured by increased charge-transfer processes and electrocatalytic activity in comparison with expensive Pt CE, yielding power conversion efficiencies of 8.29% and 7.41% in corresponding DSSCs with Ni Pt nanowire and nanosheet alloy CEs, respectively. Additionally, the Ni Pt alloy CEs also display extraordinary dissolution-resistant ability when suffering longterm utilization in liquid-junction DSSCs.

关键词： Dye-sensitized solar cell Counter electrode Alloy electrocatalyst

A series of conducting gel electrolytes for quasi-solid-state quantum dot-sensitized solar cells with boosted electron transfer processes

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2018年第2期27卷 335-341页

作者： Qiming Yang Wen Yang jialong duan Peizhi Yang Key Laboratory of Advanced Technique & Preparation for Renewable Energy Materials Ministry of EducationYunnan Normal University School of Materials Science and Engineering Ocean University of China

To pursue electron-generation stability with no sacrifice of photovoltaic performance has been a persistent objective for all kinds of solar cells. Here, we demonstrate the experimental realization of this objective by quasi-solid-state quantum dot-sensitized solar cells from a series of conducting gel electrolytes composed of polyacrylamide（PAAm） matrix and conductive polymers [polyaniline（PANi）, polypyrrole（PPy） or polythiophene（PT）]. The reduction of Sx2- occurred in both interface and three dimensional framework of conducting gel electrolyte as a result of the electrical conduction of PANi, PPy and PT toward refluxed electrons from external circuit to Pt electrode. The resulting solar cells can yield the solarto-electrical conversion efficiency of 2.33%, 2.25% and 1.80% for PANi, PPy and PT based gel electrolytes,respectively. Those solar cells possessed much higher efficiency than that of 1.74% based on pure PAAm gel electrolyte owing to the enhanced kinetics for Sx2- ？ S2- conversion. More importantly, the stability of quasi-solid-state solar cell is significantly advanced, arising from the localization of liquid electrolyte into the three dimensional framework and therefore reduced leakage and volatilization.

关键词： Quantum dot-sensitized solar cells Conducting gel electrolyte Charge transfer Stability Micropomus structure

Bifunctional polyaniline electrode tailored hybridized solar cells for energy harvesting from sun and rain

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2018年第3期27卷 742-747页

作者： jialong duan Yanyan duan Yuanyuan Zhao Yingli Wang Qunwei Tang Benlin He School of Materials Science and Engineering Ocean University of China

Pursuit of energy-harvesting or-storage materials to realize outstanding electricity output from nature has been regarded as a promising strategy to resolve the energy-lack issue in the future. Among them,the solar cell as a solar-to-electrical conversion device has been attracted enormous interest to improve the efficiency. However, the ability to generate electricity is highly dependent on the weather conditions,in other words, there is nearly zero power output in dark-light conditions, such as rainy, cloudy, and night, lowering the monolithic power generation capacity. Here, we present a bifunctional polyaniline film via chemical bath deposition, which can harvest energy from the rain, yielding an induced current of 2.57 μA and voltage of 65.5 μV under the stimulus of real raindrop. When incorporating the functional PANi film into the traditional dye sensitized solar cell as a counter electrode, the hybridized photovoltaic can experimentally realize the enhanced output power via harvesting energy from rainy and sunny days. The current work may show a new path for development of advanced solar cells in the future.

关键词： Hybridized solar cell Polyaniline Electrical double-layer pseudocapacitors Energy harvesting Rain water

Tri-functionalized TiOxCl4-2x accessory layer to boost efficiency of hole-free, all-inorganic perovskite solar cells

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2020年第11期29卷 1-8页

作者： Qingwei Zhou jialong duan Yudi Wang Xiya Yang Qunwei Tang Institute of New Energy Technology College of Information Science and TechnologyJinan UniversityGuangzhou 510632GuangdongChina

Tin dioxide(SnO2) is generally regarded as a promising electron-transporting layer(ETL) for state-of-theart perovskite solar cells(PSCs), however, the ubiquitous oxygen-vacancy-related defects at SnO2 surface and the large energy difference between conduction band of SnO2 and perovskite layer undoubtedly cause severe charge carrier recombination, resulting in sluggish charge extraction efficiency and non-negligible open-circuit voltage(Voc) loss. Herein, a chlorine-containing TiOxCl4-2x accessory layer is fabricated by immersing SnO2 layer into the TiCl4 aqueous solution to passivate the surface oxygen-vacancy-related defects of SnO2 layer and to set an intermediate energy level at ETL/perovskite interface in all-inorganic cesium lead tri-bromine(CsPbBr3) PSCs. Furthermore, the TiOxCl4-2x layer also improves the infiltration of SnO2 layer surface toward perovskite precursor for high-quality perovskite film. Finally, the hole-free, allinorganic CsPbBr3PSC with a structure of FTO/SnO2/TiOxCl4-2x/Cs0.91Rb0.09PbBr3/carbon achieves a champion efficiency of 10.44% with a Vocas high as 1.629 V in comparison to 8.31% for control device. Moreover, the optimized solar cell presents good stability in 80% humidity in air.

关键词： All-inorganic perovskite solar cells Electron-transporting layer Cesium lead bromine Charge recombination Stability