Invention Grant
- Patent Title: Fabrication processes for effectively transparent contacts
-
Application No.: US15999264Application Date: 2018-08-17
-
Publication No.: US10700234B2Publication Date: 2020-06-30
- Inventor: Rebecca Saive , Harry A. Atwater , Sisir Yalamanchili , Colton Bukowsky , Thomas Russell
- Applicant: California Institute of Technology
- Applicant Address: US CA Pasadena
- Assignee: California Institute of Technology
- Current Assignee: California Institute of Technology
- Current Assignee Address: US CA Pasadena
- Agency: KPPB LLP
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H01L31/18 ; H01L31/0224

Abstract:
In conventional solar cells with metal contacts, a non-negligible fraction of the incoming solar power is immediately lost either through absorption or reflection upon interaction with the contacts. Effectively transparent contacts (“ETCs”) for solar cells can be referred to as three-dimensional contacts designed to redirect incoming light onto a photoabsorbing surface of a solar cell. In many embodiments, the ETCs have triangular cross-sections. Such ETCs can be placed on a photoabsorbing surface such that at least one of their sides forms an angle with the photoabsorbing surface. In this configuration, the ETCs can redirect incident light onto the photoabsorbing surface, mitigating or eliminating reflection loss compared to conventional solar cells. When constructed in accordance with a number of embodiments of the invention, ETCs can be effectively transparent and highly conductive.
Public/Granted literature
- US20190074401A1 Fabrication processes for effectively transparent contacts Public/Granted day:2019-03-07
Information query
IPC分类: