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。