32.9% Efficient Tandem Solar Cell with Strain-Balanced GaInAs/GaAsP Quantum Wells: Preprint

Myles Steiner; Ryan France; Jeronimo Buencuerpo; John Geisz; Michael Nielsen; Andreas Pusch; Waldo Olavarria; Michelle Young; Nicholas Ekins-Daukes

32.9% Efficient Tandem Solar Cell with Strain-Balanced GaInAs/GaAsP Quantum Wells: Preprint

Myles Steiner, Ryan France, Jeronimo Buencuerpo, John Geisz, Michael Nielsen, Andreas Pusch, Waldo Olavarria, Michelle Young, Nicholas Ekins-Daukes

Chemistry and Nanoscience

UNSW Australia

Research output: Contribution to conference › Paper

Abstract

We demonstrate single and dual junction solar cells with up to 80 strain-balanced GaInAs/GaAsP quantum wells (QWs), in order to extend the range of photon absorption. The net average stress in the quantum well layers is =12 MPa, despite coherent stresses in the individual layers that are 35-70 times greater. The GaAs-QW cell has a certified efficiency of (27.2 ± 0.2)% at one-sun; the GaInP/GaAs-QW tandem has a certified record one-sun efficiency of (32.9 ± 0.5)%. We will discuss the architecture of the devices, the physics behind the high performance, and pathways to further improvement.

Original language	American English
Number of pages	5
State	Published - 2021
Event	48th IEEE Photovoltaic Specialists Conference (PVSC 48) - Duration: 20 Jun 2021 → 25 Jun 2021

Conference

Conference	48th IEEE Photovoltaic Specialists Conference (PVSC 48)
Period	20/06/21 → 25/06/21

Bibliographical note

See NREL/CP-5900-81262 for paper as published in proceedings

NREL Publication Number

NREL/CP-5900-80198

Keywords

GaAsP
GaInAs
GaInP
III-V
photovoltaic
PV
quantum well
strain balance

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

https://www.nrel.gov/docs/fy21osti/80198.pdf

Cite this

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title = "32.9% Efficient Tandem Solar Cell with Strain-Balanced GaInAs/GaAsP Quantum Wells: Preprint",

abstract = "We demonstrate single and dual junction solar cells with up to 80 strain-balanced GaInAs/GaAsP quantum wells (QWs), in order to extend the range of photon absorption. The net average stress in the quantum well layers is =12 MPa, despite coherent stresses in the individual layers that are 35-70 times greater. The GaAs-QW cell has a certified efficiency of (27.2 ± 0.2)% at one-sun; the GaInP/GaAs-QW tandem has a certified record one-sun efficiency of (32.9 ± 0.5)%. We will discuss the architecture of the devices, the physics behind the high performance, and pathways to further improvement.",

keywords = "GaAsP, GaInAs, GaInP, III-V, photovoltaic, PV, quantum well, strain balance",

author = "Myles Steiner and Ryan France and Jeronimo Buencuerpo and John Geisz and Michael Nielsen and Andreas Pusch and Waldo Olavarria and Michelle Young and Nicholas Ekins-Daukes",

note = "See NREL/CP-5900-81262 for paper as published in proceedings; 48th IEEE Photovoltaic Specialists Conference (PVSC 48) ; Conference date: 20-06-2021 Through 25-06-2021",

year = "2021",

language = "American English",

}

TY - CONF

T1 - 32.9% Efficient Tandem Solar Cell with Strain-Balanced GaInAs/GaAsP Quantum Wells: Preprint

AU - Steiner, Myles

AU - France, Ryan

AU - Buencuerpo, Jeronimo

AU - Geisz, John

AU - Nielsen, Michael

AU - Pusch, Andreas

AU - Olavarria, Waldo

AU - Young, Michelle

AU - Ekins-Daukes, Nicholas

N1 - See NREL/CP-5900-81262 for paper as published in proceedings

PY - 2021

Y1 - 2021

N2 - We demonstrate single and dual junction solar cells with up to 80 strain-balanced GaInAs/GaAsP quantum wells (QWs), in order to extend the range of photon absorption. The net average stress in the quantum well layers is =12 MPa, despite coherent stresses in the individual layers that are 35-70 times greater. The GaAs-QW cell has a certified efficiency of (27.2 ± 0.2)% at one-sun; the GaInP/GaAs-QW tandem has a certified record one-sun efficiency of (32.9 ± 0.5)%. We will discuss the architecture of the devices, the physics behind the high performance, and pathways to further improvement.

AB - We demonstrate single and dual junction solar cells with up to 80 strain-balanced GaInAs/GaAsP quantum wells (QWs), in order to extend the range of photon absorption. The net average stress in the quantum well layers is =12 MPa, despite coherent stresses in the individual layers that are 35-70 times greater. The GaAs-QW cell has a certified efficiency of (27.2 ± 0.2)% at one-sun; the GaInP/GaAs-QW tandem has a certified record one-sun efficiency of (32.9 ± 0.5)%. We will discuss the architecture of the devices, the physics behind the high performance, and pathways to further improvement.

KW - GaAsP

KW - GaInAs

KW - GaInP

KW - III-V

KW - photovoltaic

KW - PV

KW - quantum well

KW - strain balance

M3 - Paper

T2 - 48th IEEE Photovoltaic Specialists Conference (PVSC 48)

Y2 - 20 June 2021 through 25 June 2021

ER -

32.9% Efficient Tandem Solar Cell with Strain-Balanced GaInAs/GaAsP Quantum Wells: Preprint

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

Access to Document

Fingerprint

Cite this