GaAs量子阱太阳能电池转换效率的计算

采用细致平衡模型计算了GaAs量子阱太阳能电池的转换效率,同时对量子阱结构带来的几种效应,如准费米能级分离、热载流子效应等进行了分析,并将碰撞离化效应引入此细致平衡模型中,通过计算研究了其对量子阱太阳能电池转换效率的影响.结果表明碰撞离化效应可以提高电池的转换效率,但提高幅度有限.     

梯度掺杂对太阳能电池转换效率的影响

论述了梯度掺杂对太阳能电池光伏转换效率的影响。利用掺杂半导体导带中自由电子数目及静电场理论，计算出了单晶硅指数掺杂的电场，并给出了任意梯度掺杂电场强度所满足的微分方程。     

Innovalight硅墨太阳能电池转换效率达19％

硅墨高效太阳能材料和技术营销商Innovalight,Inc．宣布该公司硅墨工艺太阳能电池的转换效率创下了19％的纪录。太阳能电池的转换效率即电池转换成电能的太阳能比例。     

纳米材料有机太阳能电池吸收层能量转换效率研究

针对有机太阳能电池吸收层能量转换效率低的情况,对纳米材料有机太阳能电池吸收层能量转换效率研究。首先准备实验材料与实验设备,并制备有机太阳能电池与纳米材料溶液,将制备好的纳米材料以2 pm,8 pm,16 pm,19 pm的浓度分别添加到4个太阳能电池中,分别对比4个不同浓度的有机太阳能电池的能量转换效率。纳米材料有机太阳能电池能量转换效率分析结果表明,添加浓度为16 pm的有机太阳能电池吸收层的能量转换效率最高,具有一定的实际应用意义。     

双结太阳能电池提高了能量转换效率

美国国家可持续能源实验室和科罗拉多大学的研究者们合作开发了一种高效能的双结型太阳能电池,其具有一个薄的多量子阱结构。     

研究发现金纳米层可改善太阳能电池转换效率

在太阳能的世界,有机光电太阳能电池具有广泛的潜在应用,不过它们至今仍被认为是处于起步阶段。这些用有机高分子或小分子作为半导体的碳基电池,虽然比利用无机硅片制作的常规太阳能电池更薄且生产成本更低,     

太阳能电池效率的影响因素分析

太阳能电池作为光伏发电系统的核心单元,其能量转换效率和成本的高低直接影响光伏发电系统的应用。如何提高效率,降低成本是光伏技术工作者的核心任务之一。太阳能电池的转换效率是由其输出参数开路电压、短路电流和填充因子决定的。通过分析材料的禁带宽度、少数载流子寿命、表面复合、温度、寄生电阻等对其输出参数的影响规律,最终得到其对太阳能电池效率的影响规律,并针对性地提出提高效率的方法,对太阳能电池的发展与应用将具有一定的推动作用。     

GaAs量子阱太阳能电池转换效率的计算

采用细致平衡模型计算了GaAs量子阱太阳能电池的转换效率,同时对量子阱结构带来的几种效应,如准费米能级分离、热载流子效应等进行了分析,并将碰撞离化效应引入此细致平衡模型中,通过计算研究了其对量子阱太阳能电池转换效率的影响.结果表明碰撞离化效应可以提高电池的转换效率,但提高幅度有限.     

超薄PCBM层提高有机太阳电池效率

为研究超薄PCBM层对有机太阳电池的影响,制备了含和不含超薄PCBM层的两种不同结构的体相异质结太阳电池,电池结构分别为:ITO/PEDOT:PSS/P3HT+PCBM/PCBM/AI,ITO/PEDOT:PSS/P3HT+PCBM/Al.测试结果表明:所制备电池的开路电压分别为0.599 2V和0.572 7 V,能量转换效率分别为2.24％、1.21％,超薄PCBM层起到了电子传输的作用.     

Very high efficiency solar cell modules

The Very High Efficiency Solar Cell (VHESC) program is developing integrated optical system–PV modules for portable applications that operate at greater than 50% efficiency. We are integrating the optical design with the solar cell design, and have entered previously unoccupied design space. Our approach is driven by proven quantitative models for the solar cell design, the optical design, and the integration of these designs. Optical systems efficiency with an optical efficiency of 93% and solar cell device results under ideal dichroic splitting optics summing to 42·7 ± 2·5% are described. Copyright © 2008 John Wiley & Sons, Ltd.     

Solar cell efficiency tables (version 35)

Consolidated tables showing an extensive listing of the highest independently confirmed efficiencies for solar cells and modules are presented. Guidelines for inclusion of results into these tables are outlined and new entries since July 2009 are reviewed. Copyright © 2010 John Wiley & Sons, Ltd.     

Solar cell efficiency tables (version 47)

Consolidated tables showing an extensive listing of the highest independently confirmed efficiencies for solar cells and modules are presented. Guidelines for inclusion of results into these tables are outlined, and new entries since July 2015 are reviewed. Copyright © 2015 John Wiley & Sons, Ltd.     

Solar cell efficiency tables (version 41)

Consolidated tables showing an extensive listing of the highest independently confirmed efficiencies for solar cells and modules are presented. Guidelines for inclusion of results into these tables are outlined, and new entries since June 2012 are reviewed. Copyright © 2012 John Wiley & Sons, Ltd.     

Solar cell efficiency tables (Version 32)

Consolidated tables showing an extensive listing of the highest independently confirmed efficiencies for solar cells and modules are presented. Guidelines for inclusion of results into these tables are outlined and new entries since January 2008 are reviewed. Copyright © 2008 John Wiley & Sons, Ltd.     

Solar cell efficiency tables (version 42)

Consolidated tables showing an extensive listing of the highest independently confirmed efficiencies for solar cells and modules are presented. Guidelines for inclusion of results into these tables are outlined, and new entries since January 2013 are reviewed. Copyright © 2013 John Wiley & Sons, Ltd.     

Solar cell efficiency tables (version 29)

Consolidated tables showing an extensive listing of the highest independently confirmed efficiencies for solar cells and modules are presented. Guidelines for inclusion of results into these tables are outlined and new entries since June 2006 are reviewed. Copyright © 2006 John Wiley & Sons, Ltd.     

Solar cell efficiency tables (Version 31)

Consolidated tables showing an extensive listing of the highest independently confirmed efficiencies for solar cells and modules are presented. Guidelines for inclusion of results into these tables are outlined and new entries since July, 2008 are reviewed. Copyright © 2007 John Wiley & Sons, Ltd.     

Solar cell efficiency tables (version 43)

Consolidated tables showing an extensive listing of the highest independently confirmed efficiencies for solar cells and modules are presented. Guidelines for inclusion of results into these tables are outlined, and new entries since July 2013 are reviewed. Copyright © 2013 John Wiley & Sons, Ltd.