Wright Center for Photovoltaics Innovation and CommercializationYan Research GroupThe University of Toledo

Publications

Recent Publications

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2026

  1. A chlorinated organic cation enables stable 2D/3D tin iodide perovskite photovoltaics

    Nature MaterialsDOI 10.1038/s41563-026-02726-z

  2. Coupling Selective Organic Oxidation With Hydrogen Evolution Over Metal Halide Perovskite Photocatalysts: Halide-Dependent Design, Mechanisms, and Stability Challenges

    EcoEnergyDOI 10.1002/ece2.70113

  3. Molecular Additive Engineering for Process-Humidity Robustness and Reproducible Fabrication of Perovskite Solar Cells and Modules

    ACS Applied Materials & InterfacesDOI 10.1021/acsami.6c09922

  4. Ab Initio Theory of Optical Activity in α-Quartz in the GW-Bethe-Salpeter-Equation Framework

    Physical Review LettersDOI 10.1103/cvjj-kbck

  5. Forming Gas Annealing Improves the Performance of Ex Situ Sb-Doped CdSeTe Thin-Film Solar Cells

    SmallDOI 10.1002/smll.73544

  6. Inhibition of Lead Toxicity of Perovskite Solar Cells

    Advanced Energy MaterialsDOI 10.1002/aenm.202505840

2025

  1. Assessing Proton Radiation Hardness of Antimony Chalcogenide Solar Cells

    Solar RRLDOI 10.1002/solr.202500699

  2. Long-lived photoinduced polar states in metal halide perovskites

    Nature CommunicationsDOI 10.1038/s41467-025-60007-w

  3. Process Optimization and Light Soaking to Enhance Photovoltaic Performance of Antimony Sulfide Solar Cells

    ACS Applied Energy MaterialsDOI 10.1021/acsaem.4c03160

  4. C60-based ionic salt electron shuttle for high-performance inverted perovskite solar modules

    ScienceDOI 10.1126/science.adv4701

  5. On-demand formation of Lewis bases for efficient and stable perovskite solar cells

    Nature NanotechnologyDOI 10.1038/s41565-025-01900-9

2024

  1. Evaporated CdSe for Efficient Polycrystalline CdSeTe Thin-Film Solar Cells

    ACS Energy LettersDOI 10.1021/acsenergylett.4c02874

  2. Ex situ bismuth doping for efficient CdSeTe thin-film solar cells with open-circuit voltages exceeding 900 mV

    JouleDOI 10.1016/j.joule.2024.09.013

  3. Diamine chelates for increased stability in mixed Sn-Pb and all-perovskite tandem solar cells

    Nature EnergyDOI 10.1038/s41560-024-01613-8

  4. Suppressed deprotonation enables a durable buried interface in tin-lead perovskite for all-perovskite tandem solar cells

    JouleDOI 10.1016/j.joule.2024.05.007

  5. Four-Terminal Perovskite-CdSeTe Tandem Solar Cells: From 25% toward 30% Power Conversion Efficiency and Beyond

    Solar RRLDOI 10.1002/solr.202400148

  6. Surface-defect-passivation-enabled near-unity charge collection efficiency in bromide-based perovskite gamma-ray spectrum devices

    Nature PhotonicsDOI 10.1038/s41566-023-01356-0

2023

  1. On the Durability of Tin-Containing Perovskite Solar Cells

    Advanced ScienceDOI 10.1002/advs.202304811

  2. Tailoring Crystallization Dynamics of CsPbI3 for Scalable Production of Efficient Inorganic Perovskite Solar Cells

    Advanced Functional MaterialsDOI 10.1002/adfm.202309894

  3. Mechanism of the Anomalous Dependence between Spin-Orbit Coupling and Dimensionality in Lead Halide Perovskites

    The Journal of Physical Chemistry LettersDOI 10.1021/acs.jpclett.3c02161

  4. Seed-Assisted Growth for Scalable and Efficient Perovskite Solar Modules

    Solar RRLDOI 10.1002/solr.202300541

  5. Incorporating Potassium Citrate to Improve the Performance of Tin-Lead Perovskite Solar Cells

    Advanced Energy MaterialsDOI 10.1002/aenm.202301218

  6. Highly efficient bifacial single-junction perovskite solar cells

    JouleDOI 10.1016/j.joule.2023.06.001

  7. All-Perovskite Tandem Photoelectrodes for Unassisted Solar Hydrogen Production

    ACS Energy LettersDOI 10.1021/acsenergylett.3c00654

  8. Engineering Perovskite Precursor Inks for Scalable Production of High-Efficiency Perovskite Photovoltaic Modules

    Advanced Energy MaterialsDOI 10.1002/aenm.202300595

  9. Oxygen Management to Avoid Photo-Inactive Cd(S,Se) for Efficient Cd(Se,Te) Solar Cells

    ACS Energy LettersDOI 10.1021/acsenergylett.3c00141

  10. Rational design of Lewis base molecules for stable and efficient inverted perovskite solar cells

    ScienceDOI 10.1126/science.ade3970

  11. Water-Assisted Lift-Off Process for Flexible CdTe Solar Cells

    ACS Applied Energy MaterialsDOI 10.1021/acsaem.2c03287

  12. Optical activity of solids from first principles

    Physical Review BDOI 10.1103/PhysRevB.107.045201

2022

  1. 20%-efficient polycrystalline Cd(Se,Te) thin-film solar cells with compositional gradient near the front junction

    Nature CommunicationsDOI 10.1038/s41467-022-35442-8

  2. Post-Annealing Treatment on Hydrothermally Grown Antimony Sulfoselenide Thin Films for Efficient Solar Cells

    Solar RRLDOI 10.1002/solr.202201009

  3. Regulating surface potential maximizes voltage in all-perovskite tandems

    NatureDOI 10.1038/s41586-022-05541-z

  4. Scalable Two-Step Production of High-Efficiency Perovskite Solar Cells and Modules

    Solar RRLDOI 10.1002/solr.202200571

  5. Surface reaction for efficient and stable inverted perovskite solar cells

    NatureDOI 10.1038/s41586-022-05268-x

2021

  1. Perovskite Solar Cells Go Bifacial—Mutual Benefits for Efficiency and Durability

    Advanced MaterialsDOI 10.1002/adma.202106805

  2. Metastable Dion-Jacobson 2D structure enables efficient and stable perovskite solar cells

    ScienceDOI 10.1126/science.abj2637

  3. Templated Growth and Passivation of Vertically Oriented Antimony Selenide Thin Films for High-Efficiency Solar Cells in Substrate Configuration

    Advanced Functional MaterialsDOI 10.1002/adfm.202110032

  4. Effects of Cu Precursor on the Performance of Efficient CdTe Solar Cells

    ACS Appl. Mater. InterfacesDOI 10.1021/acsami.1c11784

  5. Temperature-dependency of ferroelectric behavior in CH3NH3PbI3 perovskite films measured by the Sawyer–Tower method

    MRS AdvancesDOI 10.1557/s43580-021-00093-2

  6. Low-temperature and effective ex situ group V doping for efficient polycrystalline CdSeTe solar cells

    Nature EnergyDOI 10.1038/s41560-021-00848-z

  7. Mitigating ion migration in perovskite solar cells

    Trends in ChemistryDOI 10.1016/j.trechm.2021.04.004

  8. Assessing the true power of bifacial perovskite solar cells under concurrent bifacial illumination

    Sustainable Energy & FuelsDOI 10.1039/D1SE00314C

  9. Influence of Post-selenization Temperature on the Performance of Substrate-Type Sb2Se3 Solar Cells

    ACS Applied Energy MaterialsDOI 10.1021/acsaem.1c00657

2020

  1. Low-bandgap mixed tin–lead iodide perovskites with reduced methylammonium for simultaneous enhancement of solar cell efficiency and stability

    Nature EnergyDOI 10.1038/s41560-020-00692-7

  2. Arylammonium-Assisted Reduction of the Open-Circuit Voltage Deficit in Wide-Bandgap Perovskite Solar Cells: The Role of Suppressed Ion Migration

    ACS Energy LettersDOI 10.1021/acsenergylett.0c01350

  3. Maximize CdTe solar cell performance through copper activation engineering

    Nano EnergyDOI 10.1016/j.nanoen.2020.104835

  4. CuSCN as the Back Contact for Efficient ZMO/CdTe Solar Cells

    MaterialsDOI 10.3390/ma13081991

  5. Influence of Charge Transport Layers on Capacitance Measured in Halide Perovskite Solar Cells

    JouleDOI 10.1016/j.joule.2020.01.012

  6. Correlating Hysteresis and Stability with Organic Cation Composition in the Two-Step Solution-Processed Perovskite Solar Cells

    ACS Applied Materials & InterfacesDOI 10.1021/acsami.9b23374

2019

  1. High Remaining Factors in Photovoltaic Performance of Perovskite Solar Cells after High-Fluence Electron Beam Irradiations

    Journal of Materials Chemistry CDOI 10.1021/acs.jpcc.9b11483

  2. Interface Modification of Sputtered NiOx as the Hole-Transporting Layer for Efficient Inverted Planar Perovskite Solar Cells

    Journal of Materials Chemistry CDOI 10.1039/C9TC05759E

  3. Carrier lifetimes of >1 us in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells

    The Journal of Physical Chemistry LettersDOI 10.1021/acs.jpclett.9b03234

  4. Wide-bandgap, low-bandgap, and tandem perovskite solar cells

    Semiconductor Science and TechnologyDOI 10.1088/1361-6641/ab27f7

  5. Dithieno[3,2-b:2',3'-d]pyrrol-Cored Hole Transport Material Enabling Over 21% Efficiency Dopant-Free Perovskite Solar Cells

    Advanced Functional MaterialsDOI 10.1002/adfm.201904300

  6. Carrier lifetimes of >1 us in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells

    ScienceDOI 10.1126/science.aav7911

  7. Achieving a high open-circuit voltage in inverted wide-bandgap perovskite solar cells with a graded perovskite homojunction

    Nano EnergyDOI 10.1016/j.nanoen.2019.04.069

  8. Improving performance and stability of planar perovskite solar cells through grain boundary passivation with block copolymer

    Solar RRLDOI 10.1002/solr.201900078

  9. A new metal-organic open framework enabling facile synthesis of carbon encapsulated transition metal phosphide/sulfide nanoparticle electrocatalysts

    Journal of Materials Chemistry ADOI 10.1039/C9TA00404A

  10. Eliminating S-Kink To Maximize the Performance of MgZnO/CdTe Solar Cells

    ACS Applied Energy MaterialsDOI 10.1021/acsaem.9b00233

  11. A Cu3PS4 nanoparticle hole selective layer for efficient inverted perovskite solar cells

    Journal of Materials Chemistry ADOI 10.1039/C8TA12100A

  12. Low-Bandgap Mixed Tin-Lead Perovskites and Their Applications in All-Perovskite Tandem Solar Cells

    Advanced Functional MaterialsDOI 10.1002/adfm.201808801

  13. Unraveling the impact of halide mixing on perovskite stability

    Journal of the American Chemical SocietyDOI 10.1021/jacs.8b11210

  14. Atomistic Mechanism of Broadband Emission in Metal Halide Perovskites

    the Journal of Physical Chemistry LettersDOI 10.1021/acs.jpclett.8b03717

  15. The Effects of Hydrogen Iodide Back Surface Treatment on CdTe Solar Cells

    Solar RRLDOI 10.1002/solr.201800304

2018

  1. Reducing Saturation-Current Density to Realize High-Efficiency Low-Bandgap Mixed Tin-Lead Halide Perovskite Solar Cells

    Advanced Energy MaterialsDOI 10.1002/aenm.201803135

  2. Efficient two-terminal all-perovskite tandem solar cells enabled by high-quality low-bandgap absorber layers

    Nature EnergyDOI 10.1038/s41560-018-0278-x

  3. Efficient and stable emission of warm-white light from lead-free halide double perovskites

    NatureDOI 10.1038/s41586-018-0691-0

  4. Probing the origins of photodegradation in organic-inorganic metal halide perovskites with time-resolved mass spectrometry

    Sustainable Energy & FuelsDOI 10.1039/C8SE00358K

  5. Pressure-Assisted Annealing Strategy for High-Performance Self-Powered All-Inorganic Perovskite Microcrystal Photodetectors

    the Journal of Physical Chemistry LettersDOI 10.1021/acs.jpclett.8b01960

  6. Band Tail Engineering in Kesterite Cu2ZnSn(S,Se)4 Thin-Film Solar Cells with 11.8% Efficiency

    the Journal of Physical Chemistry LettersDOI 10.1021/acs.jpclett.8b01433

  7. Binary hole transport materials blending to linearly tune HOMO level for high efficiency and stable perovskite solar cells

    Nano EnergyDOI 10.1016/j.nanoen.2018.07.027

  8. Synergistic effects of thiocyanate additive and cesium cations on improving the performance and initial illumination stability of efficient perovskite solar cells

    Sustainable Energy & FuelsDOI 10.1039/C8SE00200B

  9. Metal�Organic Framework-Derived CoWP@C Composite Nanowire Electrocatalyst for Efficient Water Splitting

    ACS Energy LettersDOI 10.1021/acsenergylett.8b00584

  10. Double Coating for the Enhancement of the Performance in a MA0.7FA0.3PbBr3 Photodetector

    ACS PhotonicsDOI 10.1021/acsphotonics.8b00562

  11. Stability, Electronic and Optical Properties of M4M'X4 (M = Ga or In, M' = Si, Ge, or Sn, X = Chalcogen) Photovoltaic Absorbers

    the Journal of Physical Chemistry CDOI 10.1021/acs.jpcc.8b03706

  12. Stable and efficient CdS/Sb2Se3 solar cells prepared by scalable close space sublimation

    Nano EnergyDOI 10.1016/j.nanoen.2018.04.044

  13. Self-Powered All-Inorganic Perovskite Microcrystal Photodetectors with High Detectivity

    the Journal of Physical Chemistry LettersDOI 10.1021/acs.jpclett.8b00700

  14. Effective Carrier-Concentration Tuning of SnO2 Quantum Dot Electron-Selective Layers for High-Performance Planar Perovskite Solar Cells

    Advanced MaterialsDOI 10.1002/adma.201706023

  15. Four-Terminal All-Perovskite Tandem Solar Cells Achieving Power Conversion Efficiencies Exceeding 23%

    ACS Energy LettersDOI 10.1021/acsenergylett.7b01287

2017

  1. A New Hole Transport Material for Efficient Perovskite Solar Cells With Reduced Device Cost

    Solar RRLDOI 10.1002/solr.201700175

  2. Barium Bismuth Niobate Double Perovskite/Tungsten Oxide Nanosheet Photoanode for High-Performance Photoelectrochemical Water Splitting

    Advanced Energy MaterialsDOI 10.1002/aenm.201701655

  3. Cost-Effective Hole Transporting Material for Stable and Efficient Perovskite Solar Cells with Fill Factors up to 82%

    Journal of Materials Chemistry ADOI 10.1039/C7TA08053K

  4. Tracking the maximum power point of hysteretic perovskite solar cells using a predictive algorithm

    Journal of Materials Chemistry CDOI 10.1039/C7TC03482B

  5. Highly Sensitive Low-Bandgap Perovskite Photodetectors with Response from Ultraviolet to the Near-Infrared Region

    Advanced Functional MaterialsDOI 10.1002/adfm.201703953

  6. Progress in Theoretical Study of Metal Halide Perovskite Solar Cell Materials

    Advanced Energy MaterialsDOI 10.1002/aenm.201701136

  7. Water Vapor Treatment of Low-Temperature Deposited SnO2 Electron Selective Layers for Efficient Flexible Perovskite Solar Cells

    ACS Energy LettersDOI 10.1021/acsenergylett.7b00644

  8. One-step facile synthesis of a simple carbazole-cored hole transport material for high-performance perovskite solar cells

    Nano EnergyDOI 10.1016/j.nanoen.2017.08.016

  9. Chemical Origin of the Stability Difference between Cu(I)- and Ag(I)-Based Halide Double Perovskites

    Angewandte Chemie International EditionDOI 10.1002/anie.2017051135

  10. An organic-inorganic perovskite ferroelectric with large piezoelectric response

    ScienceDOI 10.1126/science.aai8535

  11. Parity-Forbidden Transitions and Their Impact on the Optical Absorption Properties of Lead-Free Metal Halide Perovskites and Double Perovskites

    The Journal of Physical Chemistry LettersDOI 10.1021/acs.jpclett.7b01042

  12. Bandgap Engineering of Lead-Free Double Perovskite Cs2AgBiBr6 through Trivalent Metal Alloying

    Angewandte Chemie International EditionDOI 10.1002/anie.201703970

  13. Understanding and Eliminating Hysteresis for Highly Efficient Planar Perovskite Solar Cells

    Advanced Energy MaterialsDOI 10.1002/aenm.201700414

  14. Synergistic Effects of Lead Thiocyanate Additive and Solvent Annealing on the Performance of Wide-Bandgap Perovskite Solar Cells

    ACS Energy LettersDOI 10.1021/acsenergylett.7b00278

  15. Intrinsic Instability of Cs2In(I)M(III)X6 (M = Bi, Sb; X = Halogen) Double Perovskites: A Combined Density Functional Theory and Experimental Study

    Journal of the American Chemical SocietyDOI 10.1021/jacs.7b02227

  16. Compositional and morphological engineering of mixed cation perovskite films for highly efficient planar and flexible solar cells with reduced hysteresis

    Nano EnergyDOI 10.1016/j.nanoen.2017.03.048

  17. Low-bandgap mixed tin-lead iodide perovskite absorbers with long carrier lifetimes for all-perovskite tandem solar cells

    Nature EnergyDOI 10.1038/nenergy.2017.18

2016

  1. Searching for Promising New Perovskite-Based Photovoltaic Absorbers: The Importance of Electronic Dimensionality

    Materials Horizons 2017DOI 10.1039/c6mh00519

  2. Bandgap Engineering for Barium Bismuth Niobate Double Perovskite for Photoelectrochemical Water Oxidation

    Advanced Energy MaterialsDOI 10.1002/aenm.201602260

  3. Oxygenated CdS Buffer Layers Enabling High Open-Circuit Voltages in Earth-Abundant Cu2BaSnS4 Thin-Film Solar Cells

    Advanced Energy MaterialsDOI 10.1002/aenm.201601803

  4. Layered Na1-xNiyFe1-yO2 Double Oxide Oxygen Evolution Reaction Electrocatalyst for Highly Efficient Water-splitting

    Energy Environmental ScienceDOI 10.1039/e03088b

  5. Distant-Atom Mutation for Better Earth-Abundant Light Absorbers: A Case Study of Cu2BaSnSe4

    ACS Energy LettersDOI 10.1002/ccsenergylett.6b00577

  6. Earth-abundant trigonal BaCu2Sn(SexS1-x)4 (x = 0 - 0.55) thin films with tunable band gaps for solar water splitting

    Journal of Materials Chemistry ADOI 10.1039/c6ta06702f

  7. Improving the Performance of Formamidinium and Cesium Lead Triiodide Perovskite Solar Cells Using Lead Thiocyanate Additives

    ChemSusChemDOI 10.1002/cssc.20160102

  8. Crystal Structure of AgBi2I7 Thin Films

    J. Phys. Chem. Lett.DOI 10.1021/acs.jpclett.6b01834

  9. Fabrication of Efficiecnt Low-Bandgap Perovskite Solar Cells by Combining Formamidinium Tin Iodide with Methylammonium Lead Iodide

    J. Am. Chem. Soc.DOI 10.1021/jacs.6b08337

  10. Lead-Free Inverted Planar Formamidinium Tin Triodide Perovskite Solar Cells Achieving Power Conversion Efficiencies up to 6.22%

    Advanced MaterialsDOI 10.1002/adma.201602992

  11. Thermaldynamic Stability and Defect Chemistry of Bismuth-Based Lead-Free Double Perovskites

    ChemSusChemDOI 10.1002//icssc201600771