公开(公告)号：US20160233361A1

公开(公告)日：2016-08-11

申请号：US15093255

申请日：2016-04-07

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： KEITH E. FOGEL ,  JEEHWAN KIM ,  JAE-WOONG NAH ,  DEVENDRA K. SADANA ,  KUEN-TING SHIU

IPC: H01L31/0352 ,  H01L31/0224 ,  H01L31/18

CPC classification number: H01L31/035227 ,  H01L31/022425 ,  H01L31/02363 ,  H01L31/02366 ,  H01L31/0352 ,  H01L31/1804 ,  Y02E10/50

Abstract: A photovoltaic device and method include depositing a metal film on a substrate layer. The metal film is annealed to form islands of the metal film on the substrate layer. The substrate layer is etched using the islands as an etch mask to form pillars in the substrate layer.

公开(公告)号：US20160079463A1

公开(公告)日：2016-03-17

申请号：US14946495

申请日：2015-11-19

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： TZE-CHIANG CHEN ,  BAHMAN HEKMATSHOARTABARI ,  DEVENDRA K. SADANA ,  DAVOOD SHAHRJERDI

IPC: H01L31/077 ,  H01L31/0224

CPC classification number: H01L31/077 ,  H01L31/02167 ,  H01L31/022441 ,  H01L31/022458 ,  H01L31/0682 ,  H01L31/0747 ,  H01L31/182 ,  Y02E10/50

Abstract: A photovoltaic device includes a crystalline substrate having a first dopant conductivity, an interdigitated back contact and a front surface field structure. The front surface field structure includes a crystalline layer formed on the substrate and a noncrystalline layer formed on the crystalline layer. The crystalline layer and the noncrystalline layer are doped with dopants having a same dopant conductivity as the substrate. Methods are also disclosed.

Abstract translation: 光伏器件包括具有第一掺杂剂导电性的结晶衬底，交叉指接触点和前表面场结构。 前表面场结构包括在衬底上形成的晶体层和在晶体层上形成的非结晶层。 晶体层和非结晶层掺杂有与衬底相同的掺杂剂导电性的掺杂剂。 还公开了方法。

公开(公告)号：US20150280023A1

公开(公告)日：2015-10-01

申请号：US14723095

申请日：2015-05-27

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： CHRISTOS DIMITRAKOPOULOS ,  AUGUSTIN J. HONG ,  JEEHWAN KIM ,  DEVENDRA K. SADANA ,  KUEN-TING SHIU

IPC: H01L31/0236

CPC classification number: G06F3/061 ,  G06F3/064 ,  G06F3/0647 ,  G06F3/0653 ,  G06F3/0689 ,  G06F11/0727 ,  G06F11/1076 ,  G06F12/02 ,  H01L31/02366 ,  H04L67/1002 ,  H04W8/04 ,  H04W8/065 ,  Y02E10/50

Abstract: A method for fabricating a photovoltaic device includes applying a diblock copolymer layer on a substrate and removing a first polymer material from the diblock copolymer layer to form a plurality of distributed pores. A pattern forming layer is deposited on a remaining surface of the diblock copolymer layer and in the pores in contact with the substrate. The diblock copolymer layer is lifted off and portions of the pattern forming layer are left in contact with the substrate. The substrate is etched using the pattern forming layer to protect portions of the substrate to form pillars in the substrate such that the pillars provide a radiation absorbing structure in the photovoltaic device.

Abstract translation: 一种制造光伏器件的方法包括在基片上涂布二嵌段共聚物层，并从二嵌段共聚物层除去第一聚合物材料以形成多个分布孔。 图案形成层沉积在二嵌段共聚物层的剩余表面上和与基材接触的孔中。 剥离二嵌段共聚物层，使图案形成层的一部分与基板保持接触。 使用图案形成层蚀刻衬底以保护衬底的部分以在衬底中形成柱，使得柱在光伏器件中提供辐射吸收结构。

公开(公告)号：US20150270428A1

公开(公告)日：2015-09-24

申请号：US14729984

申请日：2015-06-03

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： AHMED ABOU-KANDIL ,  AUGUSTIN J. HONG ,  JEEHWAN KIM ,  MOHAMED SAAD ,  DEVENDRA K. SADANA

IPC: H01L31/075 ,  H01L31/0376 ,  H01L31/0224

CPC classification number: H01L31/075 ,  H01L31/022475 ,  H01L31/022483 ,  H01L31/03767 ,  H01L31/202 ,  H01L31/204 ,  Y02E10/548 ,  Y02P70/521

Abstract: A device and method for reducing degradation in a photovoltaic device includes adjusting a band offset of the device during one or more of forming an electrode, forming a first doped layer or forming an intrinsic layer. The adjusting reduces a band offset between one or more of the electrode, the first doped layer and the intrinsic layer to reduce light-induced degradation of the device. A second doped layer is formed on the intrinsic layer.

Abstract translation: 用于降低光伏器件劣化的器件和方法包括在形成电极，形成第一掺杂层或形成本征层的一个或多个期间调整器件的带偏移。 该调整减小了电极，第一掺杂层和本征层中的一个或多个之间的带偏移，以减少光诱导的器件劣化。 在本征层上形成第二掺杂层。

公开(公告)号：US20150255666A1

公开(公告)日：2015-09-10

申请号：US14718916

申请日：2015-05-21

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： STEPHEN W. BEDELL ,  BAHMAN HEKMATSHOARTABARI ,  DEVENDRA K. SADANA ,  GHAVAM G. SHAHIDI ,  DAVOOD SHAHRJERDI

IPC: H01L31/18 ,  H01L31/20

CPC classification number: H01L31/0465 ,  H01L31/022466 ,  H01L31/046 ,  H01L31/0463 ,  H01L31/0475 ,  H01L31/0504 ,  H01L31/0684 ,  H01L31/0747 ,  H01L31/075 ,  H01L31/076 ,  H01L31/077 ,  H01L31/1876 ,  H01L31/1888 ,  H01L31/1896 ,  H01L31/204 ,  H01L31/208 ,  Y02E10/50

Abstract: A method for fabricating a device with integrated photovoltaic cells includes supporting a semiconductor substrate on a first handle substrate and doping the semiconductor substrate to form doped alternating regions with opposite conductivity. A doped layer is formed over a first side the semiconductor substrate. A conductive material is patterned over the doped layer to form conductive islands such that the conductive islands are aligned with the alternating regions to define a plurality of photovoltaic cells connected in series on a monolithic structure.

公开(公告)号：US20150255650A1

公开(公告)日：2015-09-10

申请号：US14717482

申请日：2015-05-20

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： TZE-CHIANG CHEN ,  AUGUSTIN J. HONG ,  JEEHWAN KIM ,  DEVENDRA K. SADANA

IPC: H01L31/0368 ,  C23C16/455 ,  H01L31/0224 ,  C23C16/515 ,  H01L31/18 ,  H01L31/065

CPC classification number: H01L31/077 ,  C23C16/0272 ,  C23C16/45523 ,  C23C16/45557 ,  C23C16/50 ,  C23C16/515 ,  H01L21/02532 ,  H01L21/0262 ,  H01L31/02167 ,  H01L31/022466 ,  H01L31/022475 ,  H01L31/022483 ,  H01L31/03682 ,  H01L31/03687 ,  H01L31/03762 ,  H01L31/03921 ,  H01L31/056 ,  H01L31/065 ,  H01L31/1816 ,  H01L31/20 ,  Y02E10/52 ,  Y02E10/546 ,  Y02E10/548

Abstract: A method for forming a photovoltaic device includes providing a substrate. A layer is deposited to form one or more layers of a photovoltaic stack on the substrate. The depositing of the amorphous layer includes performing a high power flash deposition for depositing a first portion of the layer. A low power deposition is performed for depositing a second portion of the layer.

Abstract translation: 一种形成光伏器件的方法包括提供衬底。 沉积层以在衬底上形成一层或多层光伏堆叠。 非晶层的沉积包括执行大功率闪蒸沉积以沉积该层的第一部分。 执行低功率沉积以沉积该层的第二部分。

公开(公告)号：US20150228824A1

公开(公告)日：2015-08-13

申请号：US14691326

申请日：2015-04-20

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： AUGUSTIN J. HONG ,  WOO-SHIK JUNG ,  JEEHWAN KIM ,  JAE-WOONG NAH ,  DEVENDRA K. SADANA

IPC: H01L31/0352 ,  H01L31/0376 ,  H01L31/0236 ,  H01L31/075 ,  H01L31/0224

CPC classification number: H01L31/035227 ,  C03C15/00 ,  C03C17/06 ,  C03C2218/34 ,  H01L31/022433 ,  H01L31/02363 ,  H01L31/035281 ,  H01L31/0376 ,  H01L31/0392 ,  H01L31/03921 ,  H01L31/03923 ,  H01L31/03925 ,  H01L31/056 ,  H01L31/075 ,  Y02E10/52 ,  Y02E10/541 ,  Y02E10/548 ,  Y10S438/945 ,  Y10S977/773 ,  Y10S977/779 ,  Y10T428/12014 ,  Y10T428/12069 ,  Y10T428/12076 ,  Y10T428/24479 ,  Y10T428/24488 ,  Y10T428/2982

Abstract: Hemispheres and spheres are formed and employed for a plurality of applications. Hemispheres are employed to form a substrate having an upper surface and a lower surface. The upper surface includes peaks of pillars which have a base attached to the lower surface. The peaks have a density defined at the upper surface by an array of hemispherical metal structures that act as a mask during an etch to remove substrate material down to the lower surface during formation of the pillars. The pillars are dense and uniform and include a microscale average diameter. The spheres are formed as independent metal spheres or nanoparticles for other applications.

Abstract translation: 半球和球形成并用于多种应用。 半球用于形成具有上表面和下表面的基底。 上表面包括具有附接到下表面的基部的柱的峰。 峰在上表面具有通过半球形金属结构的阵列定义的密度，其在蚀刻期间用作掩模，以在形成支柱期间将基底材料移除到下表面。 支柱是致密和均匀的，并且包括微米级的平均直径。 球形成为独立的金属球体或纳米颗粒用于其他应用。

公开(公告)号：US20140227825A1

公开(公告)日：2014-08-14

申请号：US13967126

申请日：2013-08-14

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： TZE-CHIANG CHEN ,  BAHMAN HEKMATSHOARTABARI ,  DEVENDRA K. SADANA ,  DAVOOD SHAHRJERDI

IPC: H01L31/18

CPC classification number: H01L31/077 ,  H01L31/02167 ,  H01L31/022441 ,  H01L31/022458 ,  H01L31/0682 ,  H01L31/0747 ,  H01L31/182 ,  Y02E10/50

Abstract: A photovoltaic device includes a crystalline substrate having a first dopant conductivity, an interdigitated back contact and a front surface field structure. The front surface field structure includes a crystalline layer formed on the substrate and a noncrystalline layer formed on the crystalline layer. The crystalline layer and the noncrystalline layer are doped with dopants having a same dopant conductivity as the substrate. Methods are also disclosed.

公开(公告)号：US20140170807A1

公开(公告)日：2014-06-19

申请号：US13718819

申请日：2012-12-18

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： STEPHEN W. BEDELL ,  BAHMAN HEKMATSHOARTABARI ,  DEVENDRA K. SADANA ,  GHAVAM G. SHAHIDI ,  DAVOOD SHAHRJERDI

IPC: H01L31/18

CPC classification number: H01L31/0465 ,  H01L31/022466 ,  H01L31/046 ,  H01L31/0463 ,  H01L31/0475 ,  H01L31/0504 ,  H01L31/0684 ,  H01L31/0747 ,  H01L31/075 ,  H01L31/076 ,  H01L31/077 ,  H01L31/1876 ,  H01L31/1888 ,  H01L31/1896 ,  H01L31/204 ,  H01L31/208 ,  Y02E10/50

Abstract: A method for fabricating a device with integrated photovoltaic cells includes supporting a semiconductor substrate on a first handle substrate and doping the semiconductor substrate to form doped alternating regions with opposite conductivity. A doped layer is formed over a first side the semiconductor substrate. A conductive material is patterned over the doped layer to form conductive islands such that the conductive islands are aligned with the alternating regions to define a plurality of photovoltaic cells connected in series on a monolithic structure.

Abstract translation: 一种用于制造具有集成光伏电池的器件的方法包括在第一处理衬底上支撑半导体衬底并掺杂半导体衬底以形成具有相反导电性的掺杂交替区域。 掺杂层形成在半导体衬底的第一侧上。 在掺杂层上图案化导电材料以形成导电岛，使得导电岛与交替区对准以限定在单片结构上串联连接的多个光伏电池。