skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Characterization of multiterminal tandem photovoltaic devices and their subcell coupling

Journal Article · · Cell Reports Physical Science

Three-terminal (3T) and four-terminal (4T) tandem photovoltaic (PV) devices using various materials have been increasingly reported in the literature, but measurement standards are lacking. Here, multiterminal devices measured as functions of two load variables are characterized unambiguously as functions of three device voltages or currents on hexagonal plots. We demonstrate these measurement techniques using two GaInP/GaAs tandem solar cells, with a middle contact between the two subcells, as example 3T devices with both series-connected and reverse-connected subcells. Coupling mechanisms between the subcells are quantified within the context of a simple equivalent optoelectronic circuit. Electrical and optical coupling mechanisms are most clearly revealed using coupled dark measurements. These measurements are sensitive enough to observe very small luminescent coupling from the bottom subcell to the top subcell in the prototype 3T device. Quick simplified measurement techniques are also discussed within the context of the complete characterization.

Research Organization:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1839369
Report Number(s):
NREL/JA-5900-80101; MainId:42304; UUID:4f6c5ca2-f43d-4a33-a85d-098833a471a6; MainAdminID:62887
Journal Information:
Cell Reports Physical Science, Vol. 2, Issue 12; ISSN 2666-3864
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (38)

Measuring IV Curves and Subcell Photocurrents in the Presence of Luminescent Coupling journal April 2013
Generalized Optoelectronic Model of Series-Connected Multijunction Solar Cells journal November 2015
Solar cell efficiency tables (version 54) journal June 2019
Bandgap engineered smart three‐terminal solar cell: New perspectives towards very high efficiencies in the silicon world
  • Djebbour, Zakaria; El‐Huni, Walid; Migan Dubois, Anne
  • Progress in Photovoltaics: Research and Applications, Vol. 27, Issue 4 https://doi.org/10.1002/pip.3096
journal December 2018
Energy Yield Advantages of Three-Terminal Perovskite-Silicon Tandem Photovoltaics journal November 2020
A comparison of different module configurations for multi-band-gap solar cells journal May 1988
A 3-D Model for Concentrator Solar Cells Based on Distributed Circuit Units journal December 2005
Reciprocity relation between photovoltaic quantum efficiency and electroluminescent emission of solar cells journal August 2007
Homogenous Voltage-Matched Strings Using Three-Terminal Tandem Solar Cells: Fundamentals and End Losses journal July 2021
Optically Enhanced Photon Recycling in Mechanically Stacked Multijunction Solar Cells journal January 2016
Three-terminal III–V/Si tandem solar cells enabled by a transparent conductive adhesive journal January 2020
Partial shading of one solar cell in a photovoltaic module with 3-terminal cell interconnection journal January 2021
String-Level Modeling of Two, Three, and Four Terminal Si-Based Tandem Modules journal September 2018
High-efficiency GaInP∕GaAs∕InGaAs triple-junction solar cells grown inverted with a metamorphic bottom junction journal July 2007
A monolithic three-terminal GaInAsP/GaInAs tandem solar cell journal December 2009
Nanoscale Back Contact Perovskite Solar Cell Design for Improved Tandem Efficiency journal August 2017
Optimization of Three-Terminal Perovskite/Silicon Tandem Solar Cells journal March 2019
Realization of GaInP/Si Dual-Junction Solar Cells With 29.8% 1-Sun Efficiency journal July 2016
A Three-Terminal Monolithic Perovskite/Si Tandem Solar Cell Characterization Platform journal March 2019
Raising the one-sun conversion efficiency of III–V/Si solar cells to 32.8% for two junctions and 35.9% for three junctions journal August 2017
Three-Terminal Tandem Solar Cells With a Back-Contact-Type Bottom Cell Bonded Using Conductive Metal Nanoparticle Arrays journal March 2020
High-performance concentrator tandem solar cells based on IR-sensitive bottom cells journal May 1991
Impact of loading topology and current mismatch on current–voltage curves of three-terminal tandem solar cells with interdigitated back contacts journal March 2021
Toward Low-Cost 4-Terminal GaAs//Si Tandem Solar Cells journal March 2019
Three-Terminal Perovskite/Silicon Tandem Solar Cells with Top and Interdigitated Rear Contacts journal January 2020
Back‐contacted bottom cells with three terminals: Maximizing power extraction from current‐mismatched tandem cells
  • Rienäcker, Michael; Warren, Emily L.; Schnabel, Manuel
  • Progress in Photovoltaics: Research and Applications, Vol. 27, Issue 5 https://doi.org/10.1002/pip.3107
journal January 2019
Band gap-voltage offset and energy production in next-generation multijunction solar cells journal November 2010
A Taxonomy for Three-Terminal Tandem Solar Cells journal March 2020
Luminescent coupling in planar opto-electronic devices journal October 2015
Six-junction III–V solar cells with 47.1% conversion efficiency under 143 Suns concentration journal April 2020
Module interconnection for the three-terminal heterojunction bipolar transistor solar cell
  • Zehender, Marius; Antolín, Elisa; García-Linares, Pablo
  • 14TH INTERNATIONAL CONFERENCE ON CONCENTRATOR PHOTOVOLTAIC SYSTEMS (CPV-14), AIP Conference Proceedings https://doi.org/10.1063/1.5053521
conference January 2018
Theoretical analysis of new wavelength‐division solar cells journal September 1980
Effects of optical coupling in III-V multilayer systems journal May 2007
Equivalent Performance in Three-Terminal and Four-Terminal Tandem Solar Cells journal November 2018
Maximizing tandem solar cell power extraction using a three-terminal design journal January 2018
Best Practices in Perovskite Solar Cell Efficiency Measurements. Avoiding the Error of Making Bad Cells Look Good journal February 2015
Non-linear luminescent coupling in series-connected multijunction solar cells journal June 2012
Optical enhancement of the open-circuit voltage in high quality GaAs solar cells journal March 2013