公开(公告)号：US20080251118A1

公开(公告)日：2008-10-16

申请号：US12078315

申请日：2008-03-28

申请人： Carsten Rohr ,  Keith W.J. Barnham ,  Nicholas Ekins-Daukes ,  James P. Connolly ,  Iam M. Ballard ,  Massimo Mazzer

发明人： Carsten Rohr ,  Keith W.J. Barnham ,  Nicholas Ekins-Daukes ,  James P. Connolly ,  Iam M. Ballard ,  Massimo Mazzer

IPC分类号： H01L31/00

CPC分类号： B82Y20/00 ,  H01L31/035236 ,  H01L31/0735 ,  H01L31/075 ,  H02S10/30 ,  Y02E10/544 ,  Y02E10/548

摘要： A method of forming a photovoltaic device includes a plurality of quantum wells and a plurality of barriers. The quantum wells and barriers are disposed on an underlying layer. The barriers alternate with the quantum wells. One of the plurality of quantum wells and the plurality of barriers is comprised of tensile strained layers and the other of the plurality of quantum wells and the plurality of barriers is comprised of compressively strained layers. The tensile and compressively strained layers have elastic properties. The method includes selecting compositions and thicknesses of the barriers and quantum wells taking into account the elastic properties such that each period of one tensile strained layer and one compressively strained layer exerts substantially no shear force on a neighboring structure; providing the underlying layer; and forming the quantum sells and barriers on the underlying layer according to the derived compositions and thicknesses.

摘要翻译： 形成光伏器件的方法包括多个量子阱和多个屏障。 量子阱和屏障设置在下层上。 这些障碍与量子阱交替。 多个量子阱和多个势垒中的一个由拉伸应变层组成，多个量子阱中的另一个和多个势垒由压缩应变层组成。 拉伸和压缩应变层具有弹性特性。 该方法包括考虑弹性特性来选择阻挡层和量子阱的组成和厚度，使得一个拉伸应变层和一个压缩应变层的每个周期基本上不对相邻结构施加剪切力; 提供下层; 并根据衍生的组成和厚度在下层形成量子销售和障碍。

公开(公告)号：US07868247B2

公开(公告)日：2011-01-11

申请号：US12078315

申请日：2008-03-28

申请人： Carsten Rohr ,  Keith W. J. Barnham ,  Nicholas Ekins-Daukes ,  James P. Connolly ,  Ian M. Ballard ,  Massimo Mazzer

发明人： Carsten Rohr ,  Keith W. J. Barnham ,  Nicholas Ekins-Daukes ,  James P. Connolly ,  Ian M. Ballard ,  Massimo Mazzer

IPC分类号： H01L31/00

CPC分类号： B82Y20/00 ,  H01L31/035236 ,  H01L31/0735 ,  H01L31/075 ,  H02S10/30 ,  Y02E10/544 ,  Y02E10/548

摘要： A method of forming a photovoltaic device includes a plurality of quantum wells and a plurality of barriers. The quantum wells and barriers are disposed on an underlying layer. The barriers alternate with the quantum wells. One of the plurality of quantum wells and the plurality of barriers is comprised of tensile strained layers and the other of the plurality of quantum wells and the plurality of barriers is comprised of compressively strained layers. The tensile and compressively strained layers have elastic properties. The method includes selecting compositions and thicknesses of the barriers and quantum wells taking into account the elastic properties such that each period of one tensile strained layer and one compressively strained layer exerts substantially no shear force on a neighboring structure; providing the underlying layer; and forming the quantum sells and barriers on the underlying layer according to the derived compositions and thicknesses.

摘要翻译： 形成光伏器件的方法包括多个量子阱和多个屏障。 量子阱和屏障设置在下层上。 这些障碍与量子阱交替。 多个量子阱和多个势垒中的一个由拉伸应变层组成，多个量子阱中的另一个和多个势垒由压缩应变层组成。 拉伸和压缩应变层具有弹性特性。 该方法包括考虑弹性特性来选择阻挡层和量子阱的组成和厚度，使得一个拉伸应变层和一个压缩应变层的每个周期基本上不对相邻结构施加剪切力; 提供下层; 并根据衍生的组成和厚度在下层形成量子销售和障碍。

公开(公告)号：US20090277494A1

公开(公告)日：2009-11-12

申请号：US12090737

申请日：2006-10-23

申请人： Massimo Mazzer ,  Barry M. Clive ,  Keith W.J. Barnham

发明人： Massimo Mazzer ,  Barry M. Clive ,  Keith W.J. Barnham

IPC分类号： H01L31/055 ,  H01L31/052 ,  H01L31/00

CPC分类号： H01L31/0547 ,  F24S23/00 ,  F24S23/12 ,  F24S23/30 ,  F24S30/452 ,  F24S2020/23 ,  F24S2030/136 ,  Y02B10/10 ,  Y02B10/20 ,  Y02E10/44 ,  Y02E10/47 ,  Y02E10/52

摘要： Light collectors for use in building-integrated solar concentrators comprise waveguiding components incorporating spaced-apart light collecting elements arranged to collect light from a plurality of lenses in a lens array and deliver light to solar cells for photovoltaic conversion, where several lenses are coupled to each individual solar cell. The light collecting elements may comprise shaped ends of bulk waveguides to deliver incident solar radiation directly to the solar cells, or luminescent or amplifying material that converts the incident radiation to a secondary light signal that is delivered to the cells. The lenses may be pivotally mounted in a variety of ways to improve solar tracking by avoiding mechanical clashes between lenses and optimising the amount of incident light that is harvested. Filters containing heavy water may be positioned in front of the solar cells to absorb long wavelength light unconvertible by the cells, heat energy being then extractable from the heavy water.

摘要翻译： 用于建筑物集成太阳能集中器的集光器包括波导部件，其包括间隔开的聚光元件，其布置成收集来自透镜阵列中的多个透镜的光并将光传送到用于光伏转换的太阳能电池，其中若干透镜与每个 单个太阳能电池。 光收集元件可以包括体波导的成形端，以将入射的太阳辐射直接传递到太阳能电池，或者将入射辐射转换成被传送到电池的次级光信号的发光或放大材料。 透镜可以以各种方式可枢转地安装以通过避免透镜之间的机械碰撞并优化所收获的入射光的量来改善太阳跟踪。 含有重水的过滤器可以位于太阳能电池的前面，以吸收细胞不可转换的长波长的光，然后从重水中提取热能。

公开(公告)号：US20050247339A1

公开(公告)日：2005-11-10

申请号：US10841843

申请日：2004-05-10

申请人： Keith Barnham ,  Massimo Mazzer ,  James Connolly

发明人： Keith Barnham ,  Massimo Mazzer ,  James Connolly

IPC分类号： H01L31/00 ,  H01L31/0216 ,  H01L31/0352 ,  H01L31/072

CPC分类号： H01L31/02168 ,  B82Y20/00 ,  H01L31/035236 ,  H01L31/0725 ,  H01L31/0735 ,  Y02E10/544

摘要： A method of operating a solar cell is provided in which strain balanced multiple quantum well stacks containing greater than 30 quantum wells disposed between bulk semi-conductor regions having a band gap differences between the deepest well of the stack and the bulk semi-conducting region of greater than 60 mev is irradiated with radiation having an intensity of greater than 100 suns. Photons are absorbed with and outside of the quantum well stack to generate electron hole pairs recombination of electrons and holes is substantially only via a radiative recombination mechanism.

摘要翻译： 提供了一种操作太阳能电池的方法，其中应变平衡多个量子阱堆叠，其包含大于30个量子阱，其布置在堆叠半导体区域之间，该半导体区域具有堆叠的最深阱和块体半导体区域之间的带隙差 用强度大于100太阳辐射照射大于60mev。 光子被量子阱堆叠和外部吸收以产生电子空穴对电子和空穴的复合基本上仅通过辐射复合机制。

公开(公告)号：US20130269760A1

公开(公告)日：2013-10-17

申请号：US13820492

申请日：2011-08-31

申请人： Massimo Mazzer ,  Thomas Tibbits ,  Ben Browne

发明人： Massimo Mazzer ,  Thomas Tibbits ,  Ben Browne

IPC分类号： H01L31/0352 ,  H01L31/18

CPC分类号： H01L31/035236 ,  B82Y20/00 ,  H01L31/03048 ,  H01L31/075 ,  H01L31/18 ,  H01L31/1848 ,  Y02E10/544 ,  Y02E10/548

摘要： A photovoltaic junction for a solar cell is provided. The photovoltaic junction has an intrinsic region comprising a multiple quantum well stack formed from a series of quantum wells separated by barriers, in which the tensile stress in some of the quantum wells is partly or completely balanced by compressive stress in the others of the quantum wells. The overall elastostatic equilibrium of the multiple quantum well stack may be ensured by engineering the structural and optical properties of the quantum wells only, with the barriers having the same lattice constant as the materials used in the oppositely doped semiconductor regions of the junction, or equivalently as the actual lattice size of the junction or intrinsic region, or the bulk or effective lattice size of the substrate. Alternatively, the barriers may contribute to the stress balance.

摘要翻译： 提供了一种用于太阳能电池的光伏结。 该光伏结具有包含多个量子阱堆叠的本征区域，该多重量子阱堆叠由一系列被势垒隔开的量子阱形成，其中一些量子阱中的拉应力部分地或完全地通过其他量子阱中的压应力平衡 。 可以通过仅对量子阱的结构和光学性质进行工程来确保多量子阱堆叠的整体弹塑性平衡，其中阻挡层具有与在结的相反掺杂的半导体区域中使用的材料相同的晶格常数，或等效地 作为结或本征区域的实际晶格尺寸，或衬底的本体或有效晶格尺寸。 或者，障碍可能有助于压力平衡。

公开(公告)号：US20080230112A1

公开(公告)日：2008-09-25

申请号：US12076956

申请日：2008-03-25

申请人： Keith W. Barnham ,  Ian M. Ballard ,  Massimo Mazzer

发明人： Keith W. Barnham ,  Ian M. Ballard ,  Massimo Mazzer

IPC分类号： H01L31/052 ,  H01L31/06

CPC分类号： H01L31/078 ,  H01L27/14647 ,  H01L31/043 ,  H01L31/0475 ,  H01L31/061 ,  H01L2924/0002 ,  H02S10/30 ,  Y02E10/52 ,  H01L2924/00

摘要： A photovoltaic system includes a photovoltaic device that includes a lower photovoltaic cell fabricated from semiconductor material having a first bandgap, and having first electrical contacts for extraction of current from the lower cell; an electrically insulating layer monolithically fabricated on the lower photovoltaic cell; and an upper photovoltaic cell monolithically fabricated on the electrically insulating layer from semiconductor material having a second bandgap larger than the first bandgap, and having second electrical contacts for extraction of current from the upper cell. The photovoltaic system also includes one or more first photon sources operable to supply photons to the photovoltaic device, the photons having wavelengths in a first wavelength range associated primarily with the first bandgap. The photovoltaic system further includes one or more second photon sources operable to supply photons to the photovoltaic device, the photons having wavelengths in a second wavelength range primarily associated with the second bandgap.

摘要翻译： 光伏系统包括光伏器件，其包括由具有第一带隙的半导体材料制成的下部光伏电池，并且具有用于从下部电池提取电流的第一电触点; 整体地制造在下部光伏电池上的电绝缘层; 以及在具有大于第一带隙的第二带隙的半导体材料的电绝缘层上单片地制造的上部光伏电池，并且具有用于从上部电池提取电流的第二电触点。 光伏系统还包括可操作以向光伏器件提供光子的一个或多个第一光子源，所述光子具有主要与第一带隙相关联的第一波长范围的波长。 光伏系统还包括一个或多个可操作以向光伏器件提供光子的第二光子源，所述光子具有主要与第二带隙相关联的第二波长范围的波长。