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

Title: Near-Infrared Ternary Tandem Solar Cells

Journal Article · · Advanced Materials
 [1];  [2];  [1];  [1];  [2];  [3];  [2];  [1]
  1. Univ. of Michigan, Ann Arbor, MI (United States)
  2. Soochow Univ., Suzhou (China). Institute of Functional Nano & Soft Materials (FUNSOM)
  3. Shanghai Jiao Tong Univ. (China). Collaborative Innovation Center of IFSA (CICIFSA)

Abstract The paucity of near‐infrared (NIR) organic materials with high absorption at long wavelengths, combined with large diffusion lengths and charge mobilities, is an impediment to progress in achieving high‐efficiency organic tandem solar cells. Here a subcell is employed within a series tandem stack that comprises a solution‐processed ternary blend of two NIR‐absorbing nonfullerene acceptors and a polymer donor combined with a small‐molecular‐weight, short‐wavelength fullerene‐based subcell grown by vacuum thermal evaporation. The ternary cell achieves a power conversion efficiency of 12.6 ± 0.3% with a short‐circuit current of 25.5 ± 0.3 mA cm −2 , an open‐circuit voltage of 0.69 ± 0.01 V, and a fill factor of 0.71 ± 0.01 under 1 sun, AM 1.5G spectral illumination. The success of this device is a result of the nearly identical offset energies between the lowest unoccupied molecular orbitals (LUMOs) of the donors with the highest occupied molecular orbital (HOMO) of the acceptor, resulting in a high open‐circuit voltage. A tandem structure with an antireflection coating combining these subcells demonstrates a power conversion efficiency of 15.4 ± 0.3%.

Research Organization:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); US Office of Naval Research (ONR); National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
EE0006708; N00014-17-1-2211; 51873139; DE‐EE0006708
OSTI ID:
1613365
Alternate ID(s):
OSTI ID: 1475217
Journal Information:
Advanced Materials, Vol. 30, Issue 45; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 58 works
Citation information provided by
Web of Science

References (35)

Design, Synthesis, and Photovoltaic Characterization of a Small Molecular Acceptor with an Ultra-Narrow Band Gap journal February 2017
Low-Bandgap Near-IR Conjugated Polymers/Molecules for Organic Electronics journal August 2015
Solution-Processed Organic Tandem Solar Cells journal September 2006
Very low-refractive-index optical thin films consisting of an array of SiO_2 nanorods journal January 2006
Ternary Organic Solar Cells Based on Two Compatible Nonfullerene Acceptors with Power Conversion Efficiency >10% journal September 2016
Efficient Semitransparent Solar Cells with High NIR Responsiveness Enabled by a Small-Bandgap Electron Acceptor journal March 2017
Side-Chain Effect on Cyclopentadithiophene/Fluorobenzothiadiazole-Based Low Band Gap Polymers and Their Applications for Polymer Solar Cells journal June 2013
Versatile ternary organic solar cells: a critical review journal January 2016
High-Efficiency, Vacuum-Deposited, Small-Molecule Organic Tandem and Triple-Junction Photovoltaic Cells journal August 2014
High Efficiency Near-Infrared and Semitransparent Non-Fullerene Acceptor Organic Photovoltaic Cells journal November 2017
High photovoltage multiple-heterojunction organic solar cells incorporating interfacial metallic nanoclusters journal March 2002
Continuous roll-to-roll fabrication of organic photovoltaic cells via interconnected high-vacuum and low-pressure organic vapor phase deposition systems journal July 2018
Charge transport and exciton dissociation in organic solar cells consisting of dipolar donors mixed with C 70 journal August 2015
Status and prospects for ternary organic photovoltaics journal July 2015
Dithienopicenocarbazole-Based Acceptors for Efficient Organic Solar Cells with Optoelectronic Response Over 1000 nm and an Extremely Low Energy Loss journal February 2018
Centimetre-scale electron diffusion in photoactive organic heterostructures journal January 2018
High Quantum Efficiencies in Polymer Solar Cells at Energy Losses below 0.6 eV journal February 2015
Optimizing Polymer Tandem Solar Cells journal February 2010
Non-fullerene acceptor with low energy loss and high external quantum efficiency: towards high performance polymer solar cells journal January 2016
Organic and solution-processed tandem solar cells with 17.3% efficiency journal August 2018
High fabrication yield organic tandem photovoltaics combining vacuum- and solution-processed subcells with 15% efficiency journal April 2018
Enhancing the Performance of Polymer Solar Cells via Core Engineering of NIR-Absorbing Electron Acceptors journal March 2018
Reducing the efficiency–stability–cost gap of organic photovoltaics with highly efficient and stable small molecule acceptor ternary solar cells journal November 2016
Efficient Tandem Polymer Solar Cells Fabricated by All-Solution Processing journal July 2007
A near-infrared non-fullerene electron acceptor for high performance polymer solar cells journal January 2017
Two Well-Miscible Acceptors Work as One for Efficient Fullerene-Free Organic Solar Cells journal May 2017
Advances in Non-Fullerene Acceptor Based Ternary Organic Solar Cells journal December 2017
Measuring the External Quantum Efficiency of Two-Terminal Polymer Tandem Solar Cells journal September 2010
Efficient Tandem and Triple-Junction Polymer Solar Cells journal April 2013
Photodegradation of small-molecule organic photovoltaics journal June 2014
26 mA cm−2 Jsc from organic solar cells with a low-bandgap nonfullerene acceptor journal November 2017
A Fullerene-Based Organic Exciton Blocking Layer with High Electron Conductivity journal June 2013
Tandem polymer solar cells featuring a spectrally matched low-bandgap polymer journal February 2012
Quantification of Quantum Efficiency and Energy Losses in Low Bandgap Polymer:Fullerene Solar Cells with High Open-Circuit Voltage journal May 2012
How should you measure your excitonic solar cells? journal January 2012

Cited By (16)

A Tandem Organic Solar Cell with PCE of 14.52% Employing Subcells with the Same Polymer Donor and Two Absorption Complementary Acceptors journal February 2019
Highly Efficient Semitransparent Organic Solar Cells with Color Rendering Index Approaching 100 journal January 2019
Enhanced Light Utilization in Semitransparent Organic Photovoltaics Using an Optical Outcoupling Architecture journal August 2019
Design Principles and Synergistic Effects of Chlorination on a Conjugated Backbone for Efficient Organic Photovoltaics: A Critical Review journal February 2020
15% Efficiency Tandem Organic Solar Cell Based on a Novel Highly Efficient Wide‐Bandgap Nonfullerene Acceptor with Low Energy Loss journal January 2019
Simple Bithiophene–Rhodanine‐Based Small Molecule Acceptor for Use in Additive‐Free Nonfullerene OPVs with Low Energy Loss of 0.51 eV journal February 2019
Near‐infrared organic photoelectric materials for light‐harvesting systems: Organic photovoltaics and organic photodiodes journal November 2019
Recent Progress in Molecular Design of Fused Ring Electron Acceptors for Organic Solar Cells journal April 2019
Two Well‐Compatible Acceptors with Efficient Energy Transfer Enable Ternary Organic Photovoltaics Exhibiting a 13.36% Efficiency journal August 2019
Regioisomer‐Free Chlorinated Thiophene‐Based Ending Group for Thieno[3,2‐ b ]thiophene Central Unit‐Based Acceptor Enabling Highly Efficient Nonfullerene Polymer Solar Cells with High V oc Simultaneously journal October 2019
Extending Photoresponse to the Near‐Infrared Region for Inverted Perovskite Solar Cells by Using a Low‐Bandgap Electron Transporting Material journal February 2020
Carbon–oxygen-bridged hexacyclic non-fullerene acceptors with chlorinated end groups journal January 2019
Effect of fluorine substitution in organoboron electron acceptors for photovoltaic application journal January 2019
High-efficiency ternary nonfullerene organic solar cells fabricated with a near infrared acceptor enhancing exciton utilization and extending absorption journal January 2019
Image-force effects on energy level alignment at electron transport material/cathode interfaces journal January 2020
Intrinsic Measurements of Exciton Transport in Photovoltaic Cells conference January 2019

Similar Records

Vacuum-Deposited Biternary Organic Photovoltaics
Journal Article · Thu Oct 17 00:00:00 EDT 2019 · Journal of the American Chemical Society · OSTI ID:1613365

15.9% organic tandem solar cell with extended near-infrared absorption
Journal Article · Mon Apr 13 00:00:00 EDT 2020 · Applied Physics Letters · OSTI ID:1613365

Fine‐Tuning Alkyl Chains on Quinoxaline Nonfullerene Acceptors Enables High‐Efficiency Ternary Organic Solar Cells with Optimizing Molecular Stacking and Reducing Energy Loss
Journal Article · Fri Aug 04 00:00:00 EDT 2023 · Advanced Functional Materials · OSTI ID:1613365