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Regulating surface potential maximizes voltage in all-perovskite tandems

Journal Article · · Nature (London)
 [1];  [2];  [3];  [2];  [4];  [2];  [5];  [5];  [2];  [2];  [6];  [6];  [6];  [7];  [6];  [7];  [7];  [8];  [8];  [7] more »;  [5];  [9];  [9];  [8];  [5];  [9];  [7];  [10] « less
  1. University of Toronto, ON (Canada); University of Toledo
  2. Univ. of Toronto, ON (Canada)
  3. Univ. of Toronto, ON (Canada); Univ. of Toledo, OH (United States)
  4. Univ. of Toronto, ON (Canada); Northwestern Univ., Evanston, IL (United States)
  5. King Abdullah University of Science and Technology (KAUST), Thuwal (Saudi Arabia)
  6. University of Toronto, ON (Canada)
  7. University of Toledo, OH (United States)
  8. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  9. Northwestern University, Evanston, IL (United States)
  10. University of Toronto, ON (Canada); Northwestern University, Evanston, IL (United States)

The open circuit voltage (VOC) deficit in perovskite solar cells (PSCs) is greater in wide bandgap (>1.7 eV) cells than in ~1.5 eV perovskites. Quasi-Fermi level splitting (QFLS) measurements reveal VOC-limiting recombination at the electron transport layer (ETL) contact. This, we find, stems from inhomogeneous surface potential and poor perovskite-ETL energetic alignment. Common monoammonium surface treatments fail to address this; instead we introduce diammonium molecules to modify the perovskite surface states and achieve a more uniform spatial distribution of surface potential. Using 1,3-propane diammonium (PDA), QFLS increases by 90 meV, enabling 1.79 eV PSCs with a certified 1.33 V VOC, and > 19% power conversion efficiency (PCE). Incorporating this layer into a monolithic all-perovskite tandem, we report a record VOC of 2.19 V (89% of the Detailed Balance VOC limit) and > 27% PCE (26.3% certified quasi-steady-state). Furthermore, these tandems retain more than 86% of their initial PCE after 500 hrs operation.

Research Organization:
National Renewable Energy Laboratory (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:
EE0008753; AC36-08GO28308
OSTI ID:
1900407
Alternate ID(s):
OSTI ID: 1903181
Report Number(s):
NREL/JA-5900-83296
Journal Information:
Nature (London), Journal Name: Nature (London) Journal Issue: 7945 Vol. 613; ISSN 0028-0836
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (61)

Ligand‐Anchoring‐Induced Oriented Crystal Growth for High‐Efficiency Lead‐Tin Perovskite Solar Cells journal April 2022
The Physics of Light Emission in Halide Perovskite Devices journal September 2018
Efficient and Stable Inverted Perovskite Solar Cells Incorporating Secondary Amines journal September 2019
How To Quantify the Efficiency Potential of Neat Perovskite Films: Perovskite Semiconductors with an Implied Efficiency Exceeding 28% journal March 2020
Steric Engineering Enables Efficient and Photostable Wide‐Bandgap Perovskites for All‐Perovskite Tandem Solar Cells journal May 2022
Interface Optimization via Fullerene Blends Enables Open‐Circuit Voltages of 1.35 V in CH 3 NH 3 Pb(I 0.8 Br 0.2 ) 3 Solar Cells journal March 2021
Tin‐Lead Perovskite Fabricated via Ethylenediamine Interlayer Guides to the Solar Cell Efficiency of 21.74% journal May 2021
Understanding Performance Limiting Interfacial Recombination in pin Perovskite Solar Cells journal February 2022
Surface Defect Passivation of Pb–Sn‐Alloyed Perovskite Film by 1,3‐Propanediammonium Iodide toward High‐Performance Photovoltaic Devices journal July 2021
How Useful are Conventional I–V s for Performance Calibration of Single‐ and Two‐Junction Perovskite Solar Cells? A Statistical Analysis of Performance Data on ≈200 Cells from 30 Global Sources journal December 2021
Generalized Planck's radiation law for luminescence via indirect transitions journal January 1995
Field effect passivation of high efficiency silicon solar cells journal March 1993
Modelling polycrystalline semiconductor solar cells journal February 2000
Surface lattice engineering through three-dimensional lead iodide perovskitoid for high-performance perovskite solar cells journal March 2021
Ab initio molecular simulations with numeric atom-centered orbitals journal November 2009
Efficient integration for all-electron electronic structure calculation using numeric basis functions journal December 2009
Intermediate Phase Enhances Inorganic Perovskite and Metal Oxide Interface for Efficient Photovoltaics journal January 2020
Dimensional Mixing Increases the Efficiency of 2D/3D Perovskite Solar Cells journal June 2020
Wide-Bandgap Metal Halide Perovskites for Tandem Solar Cells journal December 2020
Defect Passivation of Organic–Inorganic Hybrid Perovskites by Diammonium Iodide toward High-Performance Photovoltaic Devices journal September 2016
Correlation of energy disorder and open-circuit voltage in hybrid perovskite solar cells journal January 2016
Defect passivation in hybrid perovskite solar cells using quaternary ammonium halide anions and cations journal June 2017
Understanding how excess lead iodide precursor improves halide perovskite solar cell performance journal August 2018
Opportunities and challenges for tandem solar cells using metal halide perovskite semiconductors journal July 2018
Visualization and suppression of interfacial recombination for high-efficiency large-area pin perovskite solar cells journal July 2018
Monolithic all-perovskite tandem solar cells with 24.8% efficiency exploiting comproportionation to suppress Sn(ii) oxidation in precursor ink journal September 2019
All-perovskite tandem solar cells with 24.2% certified efficiency and area over 1 cm2 using surface-anchoring zwitterionic antioxidant journal October 2020
Intact 2D/3D halide junction perovskite solar cells via solid-phase in-plane growth journal January 2021
Monolithic perovskite/organic tandem solar cells with 23.6% efficiency enabled by reduced voltage losses and optimized interconnecting layer journal January 2022
Multi-cation perovskites prevent carrier reflection from grain surfaces journal February 2020
Nanoscale chemical heterogeneity dominates the optoelectronic response of alloyed perovskite solar cells journal November 2021
Surface passivation of perovskite film for efficient solar cells journal April 2019
Prospects for metal halide perovskite-based tandem solar cells journal May 2021
Quantum-size-tuned heterostructures enable efficient and stable inverted perovskite solar cells journal April 2022
All-perovskite tandem solar cells with improved grain surface passivation journal January 2022
Quantification of spatial inhomogeneity in perovskite solar cells by hyperspectral luminescence imaging journal January 2016
The impact of energy alignment and interfacial recombination on the internal and external open-circuit voltage of perovskite solar cells journal January 2019
Revealing the origin of voltage loss in mixed-halide perovskite solar cells journal January 2020
Ligand-bridged charge extraction and enhanced quantum efficiency enable efficient n–i–p perovskite/silicon tandem solar cells journal January 2021
Understanding and suppressing non-radiative losses in methylammonium-free wide-bandgap perovskite solar cells journal January 2022
Optimized carrier extraction at interfaces for 23.6% efficient tin–lead perovskite solar cells journal January 2022
The templating effect of diammonium cations on the structural and optical properties of lead bromide perovskites: a guide to design broad light emitters journal January 2022
Formamidinium lead trihalide: a broadly tunable perovskite for efficient planar heterojunction solar cells journal January 2014
Some Thermodynamics of Photochemical Systems journal June 1967
The chemical potential of radiation journal June 1982
Resolution-of-identity approach to Hartree–Fock, hybrid density functionals, RPA, MP2 and GW with numeric atom-centered orbital basis functions journal May 2012
Interface-limited injection in amorphous organic semiconductors journal August 2001
Reciprocity relation between photovoltaic quantum efficiency and electroluminescent emission of solar cells journal August 2007
Accurate Molecular Van Der Waals Interactions from Ground-State Electron Density and Free-Atom Reference Data journal February 2009
Generalized Gradient Approximation Made Simple journal October 1996
One-hundred-three compound band-structure benchmark of post-self-consistent spin-orbit coupling treatments in density functional theory journal August 2017
Nika : software for two-dimensional data reduction journal March 2012
GIXSGUI : a MATLAB toolbox for grazing-incidence X-ray scattering data visualization and reduction, and indexing of buried three-dimensional periodic nanostructured films journal April 2015
Characterization of solar cells using electroluminescence and photoluminescence hyperspectral images journal January 2012
Bilateral alkylamine for suppressing charge recombination and improving stability in blade-coated perovskite solar cells journal March 2019
Carrier lifetimes of >1 μs in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells journal April 2019
Stabilizing halide perovskite surfaces for solar cell operation with wide-bandgap lead oxysalts journal August 2019
Stable perovskite solar cells with efficiency exceeding 24.8% and 0.3-V voltage loss journal September 2020
Monolithic perovskite/silicon tandem solar cell with >29% efficiency by enhanced hole extraction journal December 2020
Metastable Dion-Jacobson 2D structure enables efficient and stable perovskite solar cells journal January 2022
Organometallic-functionalized interfaces for highly efficient inverted perovskite solar cells journal April 2022