DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Non-fullerene acceptor organic photovoltaics with intrinsic operational lifetimes over 30 years

Journal Article · · Nature Communications

Abstract Organic photovoltaic cells (OPVs) have the potential of becoming a productive renewable energy technology if the requirements of low cost, high efficiency and prolonged lifetime are simultaneously fulfilled. So far, the remaining unfulfilled promise of this technology is its inadequate operational lifetime. Here, we demonstrate that the instability of NFA solar cells arises primarily from chemical changes at organic/inorganic interfaces bounding the bulk heterojunction active region. Encapsulated devices stabilized by additional protective buffer layers as well as the integration of a simple solution processed ultraviolet filtering layer, maintain 94% of their initial efficiency under simulated, 1 sun intensity, AM1.5 G irradiation for 1900 hours at 55 °C. Accelerated aging is also induced by exposure of light illumination intensities up to 27 suns, and operation temperatures as high as 65 °C. An extrapolated intrinsic lifetime of > 5.6 × 10 4 h is obtained, which is equivalent to 30 years outdoor exposure.

Sponsoring Organization:
USDOE
Grant/Contract Number:
NONE; EE0008561
OSTI ID:
1819976
Alternate ID(s):
OSTI ID: 1826748
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 12; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (48)

A SAXS/WAXS/GISAXS Beamline with Multilayer Monochromator journal October 2010
Intrinsic photo-degradation and mechanism of polymer solar cells: the crucial role of non-fullerene acceptors journal January 2019
Recent Progress and Challenges toward Highly Stable Nonfullerene Acceptor‐Based Organic Solar Cells journal December 2020
Nitrogen-Doped Porous Molybdenum Carbide and Phosphide Hybrids on a Carbon Matrix as Highly Effective Electrocatalysts for the Hydrogen Evolution Reaction journal October 2017
High Efficiency Near-Infrared and Semitransparent Non-Fullerene Acceptor Organic Photovoltaic Cells journal November 2017
Revealing Hidden UV Instabilities in Organic Solar Cells by Correlating Device and Material Stability journal August 2019
An Electron Acceptor Challenging Fullerenes for Efficient Polymer Solar Cells journal January 2015
Delineation of Thermodynamic and Kinetic Factors that Control Stability in Non-fullerene Organic Solar Cells journal May 2019
Waiting for Act 2: what lies beyond organic light-emitting diode (OLED) displays for organic electronics? journal August 2020
Photocatalytic effect of ZnO on the stability of nonfullerene acceptors and its mitigation by SnO 2 for nonfullerene organic solar cells journal January 2019
Organic Electronics book August 2020
Reducing the efficiency–stability–cost gap of organic photovoltaics with highly efficient and stable small molecule acceptor ternary solar cells journal November 2016
Aperiodic optical coatings for neutral-color semi-transparent organic photovoltaics journal January 2021
Photodegradation of small-molecule organic photovoltaics journal June 2014
Photostability of organic materials used in polymer solar cells: Photostability of polymer solar cells journal December 2013
Efficient Polymer Solar Cells Based on Non-fullerene Acceptors with Potential Device Lifetime Approaching 10 Years journal January 2019
Enhanced Light Utilization in Semitransparent Organic Photovoltaics Using an Optical Outcoupling Architecture journal August 2019
The Path to 20% Power Conversion Efficiencies in Nonfullerene Acceptor Organic Solar Cells journal December 2020
Single-Junction Organic Solar Cell with over 15% Efficiency Using Fused-Ring Acceptor with Electron-Deficient Core journal April 2019
Intrinsically stable organic solar cells under high-intensity illumination journal September 2019
Low-Temperature Solution-Processed Hydrogen Molybdenum and Vanadium Bronzes for an Efficient Hole-Transport Layer in Organic Electronics journal February 2013
High Efficiency Polymer Solar Cells with Long Operating Lifetimes journal April 2011
A near-infrared non-fullerene electron acceptor for high performance polymer solar cells journal January 2017
Thermodynamic efficiency limit of excitonic solar cells journal May 2011
Temperature-dependent shifts of three emission bands for ZnO nanoneedle arrays journal April 2006
The Mechanism of Burn-in Loss in a High Efficiency Polymer Solar Cell journal October 2011
Burn-in Free Nonfullerene-Based Organic Solar Cells journal July 2017
Color-neutral, semitransparent organic photovoltaics for power window applications journal August 2020
Soft x-ray scattering facility at the Advanced Light Source with real-time data processing and analysis journal April 2012
Evaluation of the National Solar Radiation Database (NSRDB): 1998-2015 report April 2017
Cost estimates of production scale semitransparent organic photovoltaic modules for building integrated photovoltaics journal January 2020
The path to ubiquitous and low-cost organic electronic appliances on plastic journal April 2004
Interface-enhanced organic solar cells with extrapolated T80 lifetimes of over 20 years journal February 2020
Highly efficient organic photovoltaics with enhanced stability through the formation of doping-induced stable interfaces journal March 2020
Single-layered organic photovoltaics with double cascading charge transport pathways: 18% efficiencies journal January 2021
Interface Structure of MoO3 on Organic Semiconductors journal February 2016
It’s time to focus on organic solar cell stability journal November 2020
A Rhodanine Flanked Nonfullerene Acceptor for Solution-Processed Organic Photovoltaics journal January 2015
Consensus stability testing protocols for organic photovoltaic materials and devices journal May 2011
Organic Solar Cells—The Path to Commercial Success journal November 2020
The interfacial degradation mechanism of polymer:fullerene bis-adduct solar cells and their stability improvement journal January 2020
18% Efficiency organic solar cells journal February 2020
Boosting Organic–Metal Oxide Heterojunction via Conjugated Small Molecules for Efficient and Stable Nonfullerene Polymer Solar Cells journal July 2019
Photogeneration and the bulk quantum efficiency of organic photovoltaics journal January 2021
Quantitative relations between interaction parameter, miscibility and function in organic solar cells journal February 2018
Outdoor operation of small-molecule organic photovoltaics journal February 2017
Transparent Polymer Photovoltaics for Solar Energy Harvesting and Beyond journal June 2018
Achieving Net Zero Energy Greenhouses by Integrating Semitransparent Organic Solar Cells journal February 2020