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Solar cell comprising an oxide-nanoparticle buffer layer and method of fabrication

Patent ·
OSTI ID:1600454
; ; ;
A buffer layer for protecting an organic layer during high-energy deposition of an electrically conductive layer is disclosed. Buffer layers in accordance with the present invention are particularly well suited for use in perovskite-based single-junction solar cells and double-junction solar cell structures that include at least one perovskite-based absorbing layer. In some embodiments, the buffer layer comprises a layer of oxide-based nanoparticles that is formed using solution-state processing, in which a solution comprising the nanoparticles and a volatile solvent is spin coated onto a structure that includes the organic layer. The solvent is subsequently removed in a low-temperature process that does not degrade the organic layer.
Research Organization:
Stanford Univ., Stanford, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0004946
Assignee:
The Board of Trustees of the Leland Stanford Junior University (Stanford, CA)
Patent Number(s):
10,522,774
Application Number:
15/769,287
OSTI ID:
1600454
Country of Publication:
United States
Language:
English

References (8)

Efficient planar heterojunction perovskite solar cells by vapour deposition journal September 2013
Perovskite-kesterite monolithic tandem solar cells with high open-circuit voltage journal October 2014
A Bismuth-Halide Double Perovskite with Long Carrier Recombination Lifetime for Photovoltaic Applications journal February 2016
Organic–Inorganic Halide Perovskites: Perspectives for Silicon-Based Tandem Solar Cells journal November 2014
Semiconducting Tin and Lead Iodide Perovskites with Organic Cations: Phase Transitions, High Mobilities, and Near-Infrared Photoluminescent Properties journal July 2013
High-efficiency tandem perovskite solar cells journal August 2015
Bandgap and exciton binding energies in lead-iodide-based natural quantum-well crystals journal March 2004
Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites journal October 2012

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14 SOLAR ENERGY