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Title: Ideal Bandgap Organic–Inorganic Hybrid Perovskite Solar Cells

Journal Article · · Advanced Materials
ORCiD logo [1];  [1]; ORCiD logo [2]
  1. Department of Materials Science and Engineering University of Washington Seattle WA 98195 USA
  2. Department of Materials Science and Engineering University of Washington Seattle WA 98195 USA, Department of Chemistry City University of Hong Kong Kowloon Hong Kong, Department of Materials Science and Engineering City University of Hong Kong Kowloon Hong Kong

Abstract Extremely high power conversion efficiencies (PCEs) of ≈20–22% are realized through intensive research and development of 1.5–1.6 eV bandgap perovskite absorbers. However, development of ideal bandgap (1.3–1.4 eV) absorbers is pivotal to further improve PCE of single junction perovskite solar cells (PVSCs) because of a better balance between absorption loss of sub‐bandgap photons and thermalization loss of above‐bandgap photons as demonstrated by the Shockley–Queisser detailed balanced calculation. Ideal bandgap PVSCs are currently hindered by the poor optoelectronic quality of perovskite absorbers and their PCEs have stagnated at <15%. In this work, through systematic photoluminescence and photovoltaic analysis, a new ideal bandgap (1.35 eV) absorber composition (MAPb 0.5 Sn 0.5 (I 0.8 Br 0.2 ) 3 ) is rationally designed and developed, which possesses lower nonradiative recombination states, band edge disorder, and Urbach energy coupled with a higher absorption coefficient, which yields a reduced V oc,loss (0.45 V) and improved PCE (as high as 17.63%) for the derived PVSCs. This work provides a promising platform for unleashing the complete potential of ideal bandgap PVSCs and prospects for further improvement.

Sponsoring Organization:
USDOE
Grant/Contract Number:
DE‐EE 0006710
OSTI ID:
1413784
Journal Information:
Advanced Materials, Journal Name: Advanced Materials Vol. 29 Journal Issue: 47; ISSN 0935-9648
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English
Citation Metrics:
Cited by: 112 works
Citation information provided by
Web of Science

References (43)

Highly Efficient Perovskite-Perovskite Tandem Solar Cells Reaching 80% of the Theoretical Limit in Photovoltage journal July 2017
Fabrication of Efficient Formamidinium Tin Iodide Perovskite Solar Cells through SnF 2 –Pyrazine Complex journal March 2016
Intriguing Optoelectronic Properties of Metal Halide Perovskites journal June 2016
Optical response of mixed methylammonium lead iodide and formamidinium tin iodide perovskite thin films journal July 2017
Addressing Toxicity of Lead: Progress and Applications of Low-Toxic Metal Halide Perovskites and Their Derivatives journal March 2017
Understanding the physical properties of hybrid perovskites for photovoltaic applications journal July 2017
Stable Low-Bandgap Pb-Sn Binary Perovskites for Tandem Solar Cells journal August 2016
Lead-Free Organic-Inorganic Hybrid Perovskites for Photovoltaic Applications: Recent Advances and Perspectives journal February 2017
Understanding the relationship between ion migration and the anomalous hysteresis in high-efficiency perovskite solar cells: A fresh perspective from halide substitution journal August 2016
CH 3 NH 3 Sn x Pb (1– x ) I 3 Perovskite Solar Cells Covering up to 1060 nm journal March 2014
Metal halide perovskites for energy applications journal May 2016
Homogenous Alloys of Formamidinium Lead Triiodide and Cesium Tin Triiodide for Efficient Ideal-Bandgap Perovskite Solar Cells journal July 2017
Low-bandgap mixed tin–lead iodide perovskite absorbers with long carrier lifetimes for all-perovskite tandem solar cells journal March 2017
The rapid evolution of highly efficient perovskite solar cells journal January 2017
High-performance photovoltaic perovskite layers fabricated through intramolecular exchange journal May 2015
Solvent-Mediated Crystallization of CH3NH3SnI3 Films for Heterojunction Depleted Perovskite Solar Cells journal August 2015
Some Thermodynamics of Photochemical Systems journal June 1967
Tuning CH 3 NH 3 Pb(I 1−x Br x ) 3 perovskite oxygen stability in thin films and solar cells journal January 2017
Improved efficiency and stability of Pb–Sn binary perovskite solar cells by Cs substitution journal January 2016
Fabrication of Efficient Low-Bandgap Perovskite Solar Cells by Combining Formamidinium Tin Iodide with Methylammonium Lead Iodide journal September 2016
High Open-Circuit Voltages in Tin-Rich Low-Bandgap Perovskite-Based Planar Heterojunction Photovoltaics journal November 2016
Roadmap and roadblocks for the band gap tunability of metal halide perovskites journal January 2017
Efficient Monolithic Perovskite/Perovskite Tandem Solar Cells journal December 2016
Efficient and stable solution-processed planar perovskite solar cells via contact passivation journal February 2017
Organic Cation-Dependent Degradation Mechanism of Organotin Halide Perovskites journal March 2016
Incorporation of rubidium cations into perovskite solar cells improves photovoltaic performance journal September 2016
Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells journal March 1961
50% Sn-Based Planar Perovskite Solar Cell with Power Conversion Efficiency up to 13.6% journal August 2016
Binary-Metal Perovskites Toward High-Performance Planar-Heterojunction Hybrid Solar Cells journal August 2014
A critical review on tin halide perovskite solar cells journal January 2017
Optoelectronic Quality and Stability of Hybrid Perovskites from MAPbI 3 to MAPbI 2 Br Using Composition Spread Libraries journal January 2016
Stabilized Wide Bandgap Perovskite Solar Cells by Tin Substitution journal November 2016
Perovskite photonic sources journal April 2016
Compositional engineering of perovskite materials for high-performance solar cells journal January 2015
Facile fabrication of large-grain CH3NH3PbI3−xBrx films for high-efficiency solar cells via CH3NH3Br-selective Ostwald ripening journal August 2016
Perovskite-perovskite tandem photovoltaics with optimized band gaps journal October 2016
Efficient Carrier Separation and Intriguing Switching of Bound Charges in Inorganic–Organic Lead Halide Solar Cells journal June 2015
Synthesis and Optical Properties of Lead-Free Cesium Tin Halide Perovskite Nanocrystals journal February 2016
Antagonism between Spin–Orbit Coupling and Steric Effects Causes Anomalous Band Gap Evolution in the Perovskite Photovoltaic Materials CH 3 NH 3 Sn 1– x Pb x I 3 journal August 2015
Halide perovskite materials for solar cells: a theoretical review journal January 2015
Anomalous Band Gap Behavior in Mixed Sn and Pb Perovskites Enables Broadening of Absorption Spectrum in Solar Cells journal May 2014
Lead-free organic–inorganic tin halide perovskites for photovoltaic applications journal January 2014
Effects of formamidinium and bromide ion substitution in methylammonium lead triiodide toward high-performance perovskite solar cells journal April 2016

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