Title: Solar cells and methods of fabrication thereof

Abstract

A passivation layer is deposited on a first portion of a region of the solar cell. A grid line is deposited on a second portion of the region. The passivation layer is annealed to drive chemical species from the passivation layer to deactivate an electrical activity of a dopant in the first portion of the region of the solar cell.

Inventors:

Shumate, Seth Daniel; Hutchings, Douglas Arthur; Mohammed, Hafeezuddin; Young, Matthew; Little, Scott

Issue Date:

2018-05-01

Research Org.:

Picasolar, Inc., Fayetteville, AR (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1438421

Patent Number(s):

9960287

Application Number:

14/178,216

Assignee:

Picasolar, Inc. (Fayetteville, AR)

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

Show more

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

Y02E10/547 - Monocrystalline silicon PV cells

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L31/022433 - {Particular geometry of the grid contacts}
H01L31/1868 - {Passivation}
H01L31/1864 - {Annealing}
H01L31/02167 - {for solar cells}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

Y02P70/50 - Manufacturing or production processes characterised by the final manufactured product

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L31/068 - the potential barriers being only of the PN homojunction type, e.g. bulk silicon PN homojunction solar cells or thin film polycrystalline silicon PN homojunction solar cells
H01L31/02168 - {the coatings being antireflective or having enhancing optical properties for the solar cells}

Show less

DOE Contract Number:  

EE0006461

Resource Type:

Patent

Resource Relation:

Patent File Date: 2014 Feb 11

Country of Publication:

United States

Language:

English

Subject:

14 SOLAR ENERGY