【摘 要】
:
Among the current solar photovoltaic technologies,silicon photovoltaics has the best chance to reach a terawatt scale.The roadblocks which hinder a scalable and sustainable silicon photovoltaic techno
【出 处】
:
SNEC 第十届(2016)国际太阳能产业及光伏工程(上海)论坛
论文部分内容阅读
Among the current solar photovoltaic technologies,silicon photovoltaics has the best chance to reach a terawatt scale.The roadblocks which hinder a scalable and sustainable silicon photovoltaic technology include the scarce silver in todays silicon cells,high energy input for silicon wafers,recycling of silicon modules,storage of the intermittent solar electricity,and high costs for production and installation of silicon modules.In this talk,we will present an analysis,as quantitative as possible,on these roadblocks under the best scenarios.Without significant technological breakthroughs,the silicon photovoltaic technology would not be able to make a noticeable impact on our energy mix or carbon emission.Several strategic research directions are identified for a sustainable silicon photovoltaic technology.Finally an overview of the research portfolio in Laboratory for Terawatt Photovoltaics at ASU is presented.Several projects are highlighted including all-aluminum silicon solar cells,electrorefining for solar-grade silicon,value-added recycling of silicon cells and modules,and efficiency uniformization in silicon cell production.
其他文献
在原油开采过程中,为确定各油井的原油及天然气产量,了解地层油气含量及地层结构的变化,需对油井产出液中各组分的体积流量进行连续计量并提供实时计量数据,以优化生产参数,提高采收率。油、气、水三相计量,可以分解为两个技术要点,一是应将三相视为液相总量和气相两相计量,二是进行液相组分测量。今后,多相流量计的研制和开发应向智能式、组合式、通用性及经济性的趋势发展。
用CE/SE方法数值模拟一维气液两相爆轰波,对刚性源相采用四阶龙格库他法离散,使用空气和煤油混合物,不考虑雾化,混合物均匀填充在管内。数值模拟结果与实验的结果趋势一至。
本文建立了等离子体射流的二维/轴对称数学模型,根据CE/SE方法的基本思想,推导了适合于求解二维Euler方程的守恒元与求解元方法,并进行数值模拟,用Matlab绘制了等离子体射流场的图像,分析了等离子体射流场特性。结果表明,等离子体射流场存在着激波、膨胀波等复杂的流动现象,同时表明,CE/SE方法具有很强的捕获强间断的能力。
CE/SE方法是最近才发展起来的计算强间断的最有效的方法之一。本文应用高精度的CE/SE方法模拟了爆点周围有挡波墙的二维粘性爆炸场,具体分析了挡波墙与冲击波相互作用的规律,得到了能够反映波系结构变化的压力等值线图。数值结果显示了冲击波遇挡波墙发生反射、绕流等现象;通过与无挡波墙时爆炸流场对比,分析了挡波墙的削波作用;最后改变挡波的墙高度、厚度,对远场压力变化做了进一步分析。数值模拟结果符合相关物理
本工作利用热蒸镀方法制备了硫化镉/p型硅异质结太阳电池.暗特性Ⅰ-Ⅴ曲线表明硫化镉与p型硅形成了良好的整流特性.氧化锌掺铝作为透明电极以溅射的方法沉积在硫化镉上.采用银与电池形成欧姆接触,将电子传输给外电路.该硫化镉/p型硅异质结太阳电池的效率可达到2.56%.
After a flat PV market for several years,the market returns to growth again.The growth is connected with a transition to high efficiency solar cells manufacture by low cost.The most promising approach
Light induced degradation LID causes a fast decay of the minority carrier lifetime and thus a decrease of the efficiency (up to 10 % relative[1]) of operating monocrystalline p-type solar calls.Recent
Heterojunction (HJT),SmartWire Connection Technology (SWCT),MB PERC,bifacial,high efficiency,levelized cost of energy (LCOE)High efficiency solar cells deliver significantly higher power than conventi
在本次演讲中,我们会报告一种在线式连续镀膜(ICD)技术,可以非常理想的用于高效异质结和背钝化太阳能电池,可以非常显著的降低设备初始投资,并提升薄膜界面质量。此种ICD技术,可以用于非晶硅p、i、n层,氧化铝,氮化硅,以及各种金属和氧化物薄膜在同一真空腔内的连续沉积,而不使用机械式的门阀来隔离各种沉积工艺。此ICD技术由专业开发和制造先进真空镀膜设备的昆山迅立光电设备有限公司(迅立)进行开发,并且
The crystalline silicon PV manufacturing industry has seen rapid evolutions in the last years along two main directions.One is the continuous improvement of performances coupled with continuous reduct