Title: Graded bandgap perovskite solar cell

Abstract

This disclosure provides systems, methods, and apparatus related to solar cells. In one aspect a solar cell includes a first electrode, a hole transport layer disposed on the first electrode, a first perovskite layer disposed on the hole transport layer, a cationic diffusion barrier disposed on the first perovskite layer, a second perovskite layer disposed on the cationic diffusion barrier, an electron transport layer disposed on the second perovskite layer, and a second electrode disposed on the electron transport layer. The first perovskite layer comprises a different perovskite than the second perovskite layer.

Inventors:

Ergen, Onur; Zettl, Alexander K.

Issue Date:

2019-09-03

Research Org.:

Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1576400

Patent Number(s):

10403708

Application Number:

15/451,842

Assignee:

The Regents of the University of California (Oakland, CA)

Patent Classifications (CPCs):

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

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

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

H01L28/75 - {comprising two or more layers, e.g. comprising a barrier layer and a metal layer}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J23/002 - {Mixed oxides other than spinels, e.g. perovskite}

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

H01L28/55 - {with a dielectric comprising a perovskite structure material}

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DOE Contract Number:  

1542741; AC02-05CH11231

Resource Type:

Patent

Resource Relation:

Patent File Date: 2017 Mar 07

Country of Publication:

United States

Language:

English

Subject:

14 SOLAR ENERGY; 36 MATERIALS SCIENCE; 42 ENGINEERING