公开(公告)号：US09825193B2

公开(公告)日：2017-11-21

申请号：US14875605

申请日：2015-10-05

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Harry A. Atwater ,  Dennis Callahan ,  Colton Bukowsky

IPC: H01L31/0216 ,  H01L31/0236 ,  H01L31/0392 ,  H01L31/054 ,  H01L31/0749 ,  H01L31/056

CPC classification number: H01L31/03923 ,  H01L31/02167 ,  H01L31/02363 ,  H01L31/02366 ,  H01L31/054 ,  H01L31/056 ,  H01L31/0749 ,  Y02E10/52 ,  Y02E10/541

Abstract: Photovoltaic structures are disclosed. The structures can comprise randomly or periodically structured layers, a dielectric layer to reduce back diffusion of charge carriers, and a metallic layer to reflect photons back towards the absorbing semiconductor layers. This design can increase efficiency of photovoltaic structures. The structures can be fabricated by nanoimprint.

公开(公告)号：US20170047889A1

公开(公告)日：2017-02-16

申请号：US15233828

申请日：2016-08-10

Applicant: California Institute of Technology

Inventor： Harry A. Atwater ,  Sergio Pellegrino ,  Seyed Ali Hajimiri ,  Dennis Callahan ,  Emily C. Warmann ,  Pilar Espinet Gonzalez ,  Jeffrey P. Bosco

IPC: H02S40/42 ,  H02S40/22

CPC classification number: H02S40/42 ,  B64G1/443 ,  B64G1/503 ,  B64G1/66 ,  H01L31/054 ,  H02S40/22 ,  Y02E10/52

Abstract: Systems and methods in accordance with various embodiments of the invention implement textured metasurfaces that can provide for enhanced thermal emissivity. In one embodiment, a lightweight solar power generator includes: at least one photovoltaic cell including a photovoltaic material; at least one concentrator, configured to focus incident solar radiation onto the photovoltaic material; and at least one textured metasurface characterized by its inclusion of a plurality of microstructures, each having a characteristic lateral dimension of between approximately 1 μm and approximately 100 μm patterned thereon; where the at least one textured metasurface is disposed such that it is in thermal communication with at least some portion of the lightweight solar power generator that generates heat during the normal operation of the lightweight solar power generator, and is thereby configured to dissipate heat generated by the at least some portion.

Abstract translation: 根据本发明的各种实施例的系统和方法实现可提供增强的热发射率的纹理表面。 在一个实施例中，轻型太阳能发电机包括：至少一个包括光伏材料的光伏电池; 至少一个集中器，被配置为将入射的太阳辐射聚焦到所述光伏材料上; 以及至少一个纹理表面，其特征在于其包含多个微结构，每个微结构具有图案化在其上的约1μm和约100μm之间的特征横向尺寸; 其中所述至少一个纹理区表面设置成使得其与所述轻型太阳能发电机的至少一部分热交换，所述至少一部分轻量级太阳能发电机在轻型太阳能发电机的正常运行期间产生热量，并且因此被配置成散发由 至少一部分。

公开(公告)号：US20160376037A1

公开(公告)日：2016-12-29

申请号：US14712812

申请日：2015-05-14

Applicant: California Institute of Technology

Inventor： Sergio Pellegrino ,  Harry A. Atwater ,  Seyed Ali Hajimiri ,  Manan Arya ,  Nicolas Lee ,  Melanie Delapierre

IPC: B64G1/44 ,  H02S20/30 ,  H02S30/10 ,  B64G1/10 ,  H02J3/38

CPC classification number: H02J3/383 ,  B64G1/1085 ,  B64G1/222 ,  B64G1/283 ,  B64G1/286 ,  B64G1/288 ,  B64G1/36 ,  B64G1/401 ,  B64G1/403 ,  B64G1/405 ,  B64G1/406 ,  B64G1/407 ,  B64G1/428 ,  B64G1/44 ,  B64G1/443 ,  B64G1/66 ,  B64G2700/66 ,  H01L31/042 ,  H02J50/23 ,  H02J50/30 ,  H02J50/80 ,  H02J50/90 ,  H02S10/40 ,  H02S20/25 ,  H02S20/30 ,  H02S30/10 ,  H02S30/20 ,  H02S40/30 ,  H02S40/36 ,  H02S40/38 ,  H02S40/42 ,  Y02B10/12 ,  Y02E10/52

Abstract: A space-based solar power station, a power generating satellite module and/or a method for collecting solar radiation and transmitting power generated using electrical current produced therefrom, and/or compactible structures and deployment mechanisms used to form and deploy such satellite modules and power generation tiles associated therewith are provided. Each satellite module and/or power generation tile may be formed of a compactable structure and deployment mechanism capable of reducing the payload area required to deliver the satellite module to an orbital formation within the space-based solar power station and reliably deploy it once in orbit.

Abstract translation: 一种太空太阳能发电站，发电卫星模块和/或收集太阳辐射和使用由其产生的电流产生发射功率的方法和/或用于形成和部署这种卫星模块和电力的可压缩结构和部署机构 提供与之相关联的一代瓦片。 每个卫星模块和/或发电瓦片可以由可压缩结构和部署机构形成，该机构能够减少将卫星模块传送到空基太阳能发电站内的轨道形成所需的有效载荷区域，并将其可靠地部署在轨道上 。

公开(公告)号：US20150221800A1

公开(公告)日：2015-08-06

申请号：US14424291

申请日：2013-08-30

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Carissa N. Eisler ,  Emily D. Kosten ,  Harry A. Atwater ,  Emily C. Warmann ,  Carrie E. Hofmann ,  Rebekah K. Feist ,  James C. Stevens ,  Weijun Zhou ,  Michael E. Mills ,  Narayan Ramesh

IPC: H01L31/054 ,  H02S40/22

CPC classification number: H01L31/0549 ,  H01L31/02168 ,  H01L31/0547 ,  H02S40/22 ,  Y02E10/52

Abstract: A light splitting optical module that converts incident light into electrical energy, the module including a solid optical element comprising an input end for receiving light, a first side, and a second side spaced from the first side, a first solar cell adjacent to the first side of the solid optical element, and a second solar cell adjacent to the second side of the solid optical element. The first solar cell is positioned to absorb a first subset of incident light and reflect a first remainder of the incident light to the second solar cell through the solid optical element.

Abstract translation: 一种将入射光转换成电能的分光光学模块，该模块包括一个固体光学元件，该固体光学元件包括一个用于接收光的输入端，一个第一侧和与该第一侧隔开的第二侧，与第一个相邻的第一个太阳能电池 固体光学元件的一侧，以及与固体光学元件的第二侧相邻的第二太阳能电池。 第一太阳能电池被定位成吸收入射光的第一子集，并且通过固体光学元件将入射光的第一余数反射到第二太阳能电池。

公开(公告)号：US20140301694A1

公开(公告)日：2014-10-09

申请号：US14246026

申请日：2014-04-04

Applicant: California Institute of Technology

Inventor： Ho Wai Lee ,  Stanley Burgos ,  Georgia Papadakis ,  Harry A. Atwater

IPC: G02F1/01

CPC classification number: G02B5/008 ,  B82Y20/00 ,  G02B6/1226 ,  G02F1/011 ,  G02F1/025 ,  G02F1/0356 ,  G02F2001/0151 ,  G02F2201/12 ,  G02F2203/10 ,  G02F2203/15 ,  Y10S977/932

Abstract: A plasmonic device having a transparent conducting oxide (TCO) waveguide and a tunable voltage applied across the TCO and a metal layer for modulating an input optical signal.

Abstract translation: 具有透明导电氧化物（TCO）波导和跨TCO施加的可调电压的等离子体元件和用于调制输入光信号的金属层。

公开(公告)号：US11992813B2

公开(公告)日：2024-05-28

申请号：US17862916

申请日：2022-07-12

Applicant: California Institute of Technology

Inventor： Ye Shi ,  Julia R. Greer ,  Harry A. Atwater ,  Ognjen Ilic

IPC: B01D69/14 ,  B01D53/26 ,  B01D61/36 ,  B01D69/02 ,  B01D71/38 ,  C02F1/44

CPC classification number: B01D69/147 ,  B01D53/261 ,  B01D61/364 ,  B01D69/02 ,  B01D69/1411 ,  B01D71/381 ,  C02F1/447 ,  B01D2311/2626 ,  B01D2311/2674 ,  B01D2313/367 ,  B01D2325/04 ,  B01D2325/36 ,  C02F2201/009

Abstract: A membrane for water collection may include a sheet having a top surface and a bottom surface, and a plurality of conical structures disposed on the top surface of the sheet, the conical structures comprising a hydrogel material. Each conical structure of the plurality of conical structures may have a height of 1 mm to 50 mm, wherein height is measured from the top surface of the sheet to an apex of a conical structure. Each conical structure of the plurality of conical structures may have an apex angle of 10 to 60 degrees.

公开(公告)号：US11939688B2

公开(公告)日：2024-03-26

申请号：US16835155

申请日：2020-03-30

Applicant: California Institute of Technology

Inventor： Wen-Hui Cheng ,  Harry A. Atwater ,  Rebecca Saive ,  Matthias H. Richter ,  Sisir Yalamanchili ,  Michael D. Kelzenberg ,  Kelly McKenzie

IPC: C25B9/17 ,  C25B1/55

CPC classification number: C25B9/17 ,  C25B1/55

Abstract: Photoelectrochemical (PEC) technology for the conversion of solar energy into chemicals may require cost-effective photoelectrodes to efficiently and stably drive anodic and/or cathodic half-reactions to complete the overall reactions for storing solar energy in chemical bonds. Apparatus and systems incorporating effectively transparent metal catalysts enable the design and/or implementation of PEC devices for light harvesting. Triple-junction photocathodes with the triangular catalyst grids are provided to improve the efficiency of the photocathodes to generate renewable fuel from sunlight.

公开(公告)号：US20240024823A1

公开(公告)日：2024-01-25

申请号：US18343597

申请日：2023-06-28

Applicant: California Institute of Technology

Inventor： Eowyn Lucas ,  Harry A. Atwater ,  Chengxiang Xiang

IPC: B01D61/44 ,  B01D69/02 ,  B01D61/46 ,  C02F1/469

CPC classification number: B01D61/445 ,  B01D69/02 ,  B01D61/461 ,  C02F1/4693 ,  B01D2325/42 ,  B01D2325/04 ,  B01D2313/345 ,  C02F2101/10

Abstract: Systems and methods for catalyzed asymmetric bipolar membranes are described. Catalyzed asymmetric bipolar membranes can sustain desired current densities under low operational voltage for prolonged time periods. Catalyzed asymmetric bipolar membranes can be implemented in electrodialysis cells for various applications such as carbon capture.

公开(公告)号：US11808706B2

公开(公告)日：2023-11-07

申请号：US17147371

申请日：2021-01-12

Applicant: California Institute of Technology

Inventor： Philippe C. Adell ,  Harry A. Atwater

IPC: G01N21/64 ,  G01N21/63 ,  H01L21/66 ,  G01R31/26 ,  G01R29/24 ,  G01R31/302 ,  G01N21/88 ,  G01N21/95 ,  G01R31/265 ,  H01L29/423 ,  H01L29/51

CPC classification number: G01N21/6489 ,  G01N21/636 ,  G01N21/8851 ,  G01N21/9505 ,  G01R29/24 ,  G01R31/2648 ,  G01R31/302 ,  H01L22/12 ,  G01N21/9501 ,  G01R31/2656 ,  H01L29/42364 ,  H01L29/513 ,  H01L29/517

Abstract: The disclosed technology generally relates to characterization of semiconductor structures, and more particularly to optical characterization of high-k dielectric materials. A method includes providing a semiconductor structure comprising a semiconductor and a high-k dielectric layer formed over the semiconductor, wherein the dielectric layer has electron traps formed therein. The method additionally includes at least partially transmitting an incident light having an incident energy through the high-k dielectric layer and at least partially absorbing the incident light in the semiconductor. The method additionally includes measuring a nonlinear optical spectrum resulting from the light having the energy different from the incident energy, the nonlinear optical spectrum having a first region and a second region, wherein the first region changes at a different rate in intensity compared to the second region. The method further includes determining from the nonlinear optical spectrum one or both of a first time constant from the first region and a second time constant from the second region, and determining a trap density in the high-k dielectric layer based on the one or both of the first time constant and the second time constant.

公开(公告)号：US11634240B2

公开(公告)日：2023-04-25

申请号：US16514793

申请日：2019-07-17

Applicant: California Institute of Technology

Inventor： Sergio Pellegrino ,  Harry A. Atwater ,  Seyed Ali Hajimiri ,  Eleftherios E. Gdoutos ,  Christophe Leclerc ,  Fabien A. Royer ,  Antonio Pedivellano

IPC: E04B1/343 ,  B64G1/44 ,  B64G1/22 ,  B32B5/02 ,  B32B5/12 ,  B65H18/28 ,  B65H75/14 ,  B65H19/22 ,  B64G1/10 ,  E04C3/00 ,  H02S30/20

Abstract: Multi-functional coilable thin-walled structures that can be implemented within space-based satellite modules, and methods for their manufacture are provided. Multi-functional coilable thin-walled structures are comprised of at least one longeron that is capable of rolling and collapsing upon itself. In some embodiments, the coilable thin-walled longeron is a flange longeron. The flange longeron contains at least two major regions: a web and a plurality of flanges. The web region comprises portions of flanges that are bonded to one another. The plurality of flanges separate from one another on the same end of the web region. The plurality of flanges are similar in thickness and shape.