检索结果-南通市图书馆

Optimization of Tin-Doped Hybrid Perovskite Solar Cells

在线全文

学校读者我要写书评

暂无评论

Open Journal of Applied Sciences 2024年第3期14卷 687-706页

作者： Bakary Coulibaly Abou Ahou Florentine kokora Desiré Meledje Boko Aka Bernabé Mari Soucase IREN (Institut de Recherche sur les Energies Nouvelles Abidjan Cote d’Ivoire Unité de Formation et de Recherche des Sciences Fondamentales Appliquées (UFRSFA) Universite Nangui Abrogoua Abidjan Cote d’Ivoire Laboratoire de Physiques Fondamentales Appliquées (LPFA) Université Nangui Abrogoua Abidjan Cote d’Ivoire Institut de Disseny i Fabricació Universitat Politècnica. València Spain

Perovskites are a category of materials with a unique crystal structure that allows them to absorb sunlight efficiently. This efficiency is particularly high in the case of CH3NH3Pb1-xSnxI3 mixed perovskites. The combination of lead (Pb) and tin (Sn) in this matrix provides a broad spectrum of sunlight absorption, enabling the generation of a larger voltage and, subsequently, increased power. The primary objective in solar cell development is to maximize the conversion of sunlight into electricity. Mixed perovskites like CH3NH3Pb1-xSnxI3 have demonstrated significant potential in this regard. Their tunable bandgap, courtesy of varying the Pb: Sn ratio, allows for the optimization of sunlight absorption. The result is solar cells that surpass many conventional counterparts in terms of energy efficiency. Another significant advantage of these mixed perovskite solar cells is their cost-effectiveness. They can be manufactured using solution-based processes, which are less expensive than the high-vacuum methods required for traditional silicon solar cells. While the prospects for mixed perovskite solar cells are undeniably promising, there are concerns about the toxicity of lead, a key component of these cells. Lead is known to have harmful effects on the environment and health. The aim of our work is to reduce or eliminate lead toxicity in the perovskite cell while maintaining its efficiency. Thus, in a theoretical and experimental approach, we obtained following efficiencies of samples: CH3NH3PbI3 (22.49%) CH3NH3Pb0.75Sn0.25I3 (22.72%), CH3NH3Pb0.5Sn0.5I3 (23.00%) CH3NH3Pb0.25Sn0.75I3 (22.61%), CH3NH3SnI3 (22.38%). Doping with 50% tin

关键词： Cost Efficiency Lead/Tin Perovskite Toxicity

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

OMA与深圳证券交易所

城市环境设计 2014年第6期83卷 52-53页

作者： michael kokora OMA

在OMA,我们通常会批判性地研究一种文脉、城市、设计、或文化环境,然后直接投入其中。不论是建筑、城市或研究项目,我们都采用这种工作方式。就这一点而言,深圳证券交易所项目也不例外。城市和文化背景与业主一样独特,全都因应项目推行... 详细信息

在OMA,我们通常会批判性地研究一种文脉、城市、设计、或文化环境,然后直接投入其中。不论是建筑、城市或研究项目,我们都采用这种工作方式。就这一点而言,深圳证券交易所项目也不例外。城市和文化背景与业主一样独特,全都因应项目推行时所处的时代和相关人员而有细微差异。同样重要的,是OMA对于设计、建筑类型和施工的兴趣。

关键词：深圳证券交易所 OMA 办公楼建筑形态建筑师美术家城市文脉

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

OMA在东南亚:机遇与挑战并存

城市环境设计 2014年第6期83卷 94-95页

作者： michael kokora OMA

东南亚的魅力令人难以抗拒,美丽的自然风光、宜人的气候、悠久的历史和多样性的文化都是在该地区工作所能享受到的得天独厚的条件。经济发展在不断增长的同时,也暴露了不平衡和不一致的弊端。目前,我们已参与过越南、马来西亚、新加坡... 详细信息

东南亚的魅力令人难以抗拒,美丽的自然风光、宜人的气候、悠久的历史和多样性的文化都是在该地区工作所能享受到的得天独厚的条件。经济发展在不断增长的同时,也暴露了不平衡和不一致的弊端。目前,我们已参与过越南、马来西亚、新加坡和印尼的若干项目。变化是普遍存在的,而且风险极大,但同时也有丰厚的潜在回报。我们已经在区内建立了许多新关系,并一直致力于研究东南亚的城市化进程和风

关键词：东南亚建筑师美术家 OMA 度假村巴厘岛总体规划整体规划规划论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

非正规建筑孟买贫民窟的新陈代谢建筑

城市环境设计 2012年第12期 142-143页

作者：冼嘉聪 michael kokora 香港大学建筑学院

本设计基地位于达拉维,是印度孟买市内的一个贫民窟。达拉维是世界上最大的贫民窟之一。近来,达拉维地区的非正规工业活动十分蓬勃,吸引了大批孟买人来到达拉维寻找工作;加上达拉维地区的租金比起地价昂贵的孟买市中心便宜得多,引来了... 详细信息

本设计基地位于达拉维,是印度孟买市内的一个贫民窟。达拉维是世界上最大的贫民窟之一。近来,达拉维地区的非正规工业活动十分蓬勃,吸引了大批孟买人来到达拉维寻找工作;加上达拉维地区的租金比起地价昂贵的孟买市中心便宜得多,引来了大批孟买人在达拉维定居。达拉维地区的人口急速

关键词：贫民窟非正规孟买新陈代谢建筑工业活动市中心地价

出埃及记逆行记难以管理的自治区的基础设施建设

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

城市环境设计 2014年第12期 116-117页

作者： LO Tong Kit michael kokora 香港大学

本论文跨越多个空间尺度、场地、项目、时间和场景,在欧洲、地中海和塞浦路斯部署地缘政治为驱动,来辅助塞浦路斯绿道联合国缓冲区(一条180km长的无人区,在40年中将岛屿分为北土耳其和南希腊)恢复到宜居的状态。本研究的基础策略既非普... 详细信息

本论文跨越多个空间尺度、场地、项目、时间和场景,在欧洲、地中海和塞浦路斯部署地缘政治为驱动,来辅助塞浦路斯绿道联合国缓冲区(一条180km长的无人区,在40年中将岛屿分为北土耳其和南希腊)恢复到宜居的状态。本研究的基础策略既非普通发展亦非旅游开发,而是以绿道衰败的生态、长期的无政府状态以及土耳其和希腊塞浦路斯的共同经济危机为协作机

关键词：绿道 Greek 土耳其地中海双边

Fabrication of sub-20 nm MoS_(2) horizontal nanowire on silicon substrates by inclusion of precursors into polystyrene-bpolyethylene oxide nanopatterns: Detailed structural investigation

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2024年第3期17卷 2145-2153页

作者： Tandra Ghoshal michael A.Morris School of Chemistry AMBER and CRANNTrinity College DublinDublinIrelandD02 AK60

Herein,we demonstrate the fabrication of sub-20 nm MoS_(2) horizontal nanowire arrays on silicon substrates using a self-assembled block copolymer assisted in situ inclusion *** separated long-range ordered polystyrene-b-polyethylene oxide(PS-b-PEO)block copolymer(BCP)line-space nanopatterns were achieved through thermo-solvent *** patterns produced had long-range order and domain sizes>1μ*** BCP structures were lightly etched and modified by anhydrous ethanol to facilitate insertion of molybdenum precursor within the film maintaining the parent BCP *** ordered molybdenum oxide nanowire arrays were then fabricated by ultraviolet(UV)/ozone treatment at room *** oxides were converted to sulphides by thermal evaporation at different temperatures in Ar/H_(2) environment.X-ray photoelectron spectroscopy revealed the composition and phases of the molybdenum oxide and sulphide *** mapping was performed to investigate the interfaces between the oxide and sulphide nanowires with the substrate *** formation and stability of the sulphide nanowires were studied at different *** photoluminescence and Raman properties were studied at different formation temperatures to investigate defects and estimate the number of layers.

关键词： MoS_(2) block copolymer nanowires inclusion X-ray photoelectron spectroscopy(XPS) mapping photoluminescence

A GHz chirped amplitude-modulated laser for high-contrast plasma gratings

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

High Power Laser Science and Engineering 2024年第1期12卷 74-83页

作者： michael Valdman Amir Hen Gilad Marcus Applied Physics Institute Hebrew University of JerusalemJerusalemIsrael

The generation and control of large amplitude plasma gratings and other plasma structures is of paramount importance for the realization of plasma photonics. Autoresonant excitation of such structures by means of chirped amplitude-modulated lasers has been recently discussed and analyzed theoretically. Here we discuss the parameter space for the realization of such a scheme and describe the laser system that was built towards this goal. We also expand our earlier theoretical study to account for the more realistic case of a moderately focused laser beam, instead of the simplified plane wave approximation.

关键词： amplitude modulation high-frequency modulation autoresonance ion acoustic wave

Neuronal trafficking as a key to functional recovery in immune-mediated neuropathies

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2024年第11期19卷 2331-2332页

作者： Felix Kohle michael Schroeter Department of Neurology University of Cologne and University Hospital CologneCologneGermany

Immune-mediated neuropathies are rare diseases of the peripheral nervous system(PNS),substantially affecting patients’functionality and quality of *** are amenable to immunomodulatory treatments,which in many cases stabilize disease progression,but long-term deficits persist in many *** long-term deficits are particularly observed in monophasic autoimmune neuropathies like Guillain-Barrésyndrome and also in chronic variants,e.g.,chronic inflammatory demyelinating neuropathy(Fadia et al.,2019).

关键词： diseases autoimmune

Transcranial photobiomodulation for the brain: a wide range of clinical applications

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2024年第3期19卷 483-484页

作者： michael R.Hamblin Laser Research Centre Faculty of Health ScienceUniversity of Johannesburg-Doornfontein CampusDoornfonteinSouth Africa

Photobiomodulation therapy(PBMT)is a rapidly growing approach to the healing,stimulation,protection,and regeneration of many human organs and tissue *** started in the 1960s as low-level laser therapy for wound healing,but since then the introduction of light-emitting diodes(LEDs)has dramatically increased the number of applications and reports of positive *** generally uses red(620-700 nm)and/or near-infrared(780-1270 nm)wavelengths of light at an intensity that causes no tissue heating,and its activity is based on well-established biological and cellular mechanisms(de Freitas and Hamblin,2016).While laser therapists continue to use various types of laser in their office practice,LEDs are ideally suited for home use devices because they are completely safe and without any known significant adverse *** the various body parts on which PBMT has been shown to exert beneficial effects,the brain stands out as perhaps the most promising *** has been shown to reduce neuroinflammation,while increasing mitochondrial function,oxygen consumption,and blood flow within the brain(Hamblin,2016).Moreover,PBMT can stimulate the processes of synaptogenesis,neurogenesis,and neuroplasticity thus helping the brain to heal itself.

关键词： healing stimulation wound