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Title: Fabrication processes for effectively transparent contacts

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.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
California Institute of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1651090
Patent Number(s):
10700234
Application Number:
15/999,264
Assignee:
California Institute of Technology (Pasadena, CA)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
DOE Contract Number:  
EE0004946
Resource Type:
Patent
Resource Relation:
Patent File Date: 08/17/2018
Country of Publication:
United States
Language:
English

Citation Formats

Saive, Rebecca, Atwater, Harry A., Yalamanchili, Sisir, Bukowsky, Colton, and Russell, Thomas. Fabrication processes for effectively transparent contacts. United States: N. p., 2020. Web.
Saive, Rebecca, Atwater, Harry A., Yalamanchili, Sisir, Bukowsky, Colton, & Russell, Thomas. Fabrication processes for effectively transparent contacts. United States.
Saive, Rebecca, Atwater, Harry A., Yalamanchili, Sisir, Bukowsky, Colton, and Russell, Thomas. Tue . "Fabrication processes for effectively transparent contacts". United States. https://www.osti.gov/servlets/purl/1651090.
@article{osti_1651090,
title = {Fabrication processes for effectively transparent contacts},
author = {Saive, Rebecca and Atwater, Harry A. and Yalamanchili, Sisir and Bukowsky, Colton and Russell, Thomas},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {6}
}

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