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Meeting MS&T22: Materials Science & Technology
Symposium Energy Materials for Sustainable Development
Presentation Title Highly Stable and Efficient Perovskite Solar Cells with Functional Nanocomposites
Author(s) Yoon-Bong Hahn
On-Site Speaker (Planned) Yoon-Bong Hahn
Abstract Scope For highly stable and efficient perovskite solar cells, functional nanocomposites based on metal oxides, graphene and perovskite were developed. Compared to a reference cell, the composites-based devices showed an efficiency over 20 %. More importantly, the composites-based PSCs without encapsulation exhibited remarkable thermal- and photo-stability and long-term stability with retaining 95-99 % of the initial values of photovoltaic parameters with sustaining over 300 days under ambient conditions. However, most PSCs contain harmful lead (Pb). Recently, Sn-based PSCs have received much attention as a promising lead-free alternative, but Sn2+ is rapidly oxidized to Sn4+ in oxygen and moisture, causing a serious problem of poor device performance and stability. To address this, we proposed a novel approach, i.e. fabrication of the Sn-based PSCs with composites made of mixed-organic-cation Sn halide perovskite and graphene-Sn quantum dots. The composite-based champion device showed 55% efficiency improvement and significant reproducibility and stability improvement.
Proceedings Inclusion? Undecided


A Metal-insulator Transition in a Complex Oxide at T ≥ 293K
A Saccharide-based Binder for Efficient Polysulfide Regulations in Li-S Batteries
A Thermodynamic and Properties Database for Permanent Magnetic Materials
Ab Initio Modeling of Ionic and Electronic Conductivity of La2NiO4+δ Cathode Material for Solid Oxide Fuel Cell
Bandgap Engineering and Electrochemical Properties of Disordered LaFeO3 and Heterostructures
Bulk Nanostructured Oxide-metal Composites for Wind Turbines and Electric Vehicles
Calcium Cobaltate Based Composite Ceramics for Thermoelectric Energy Harvesting
Caloric Materials for New Heat-management Technologies
Ceramic-based Solid-state Sodium-ion Batteries Fabricated in a Single Step via Cold Sintering
Computational Study of Iron/Nitrogen Doped Carbon Electrocatalysts for Sustainable Energy Technology
Cu2O Single Crystal Synthesis via Strain-Induced Abnormal Grain Growth
Cycling Demonstration of Sequential Deposition Synthesis-synthesized Lithium Garnet Films in Full Batteries
Design, Modeling, and Direct Write Additive Manufacturing (DWAM) of Electrodes for Batteries
Detection of Proton Incorporation and Diffusion in Electrolyte Materials for SOFCs
Effect of Infiltrates on Cr-poisoning in Solid Oxide Fuel Cell Cathode Using Microstructurally Resolved HPC Simulations of Electrochemistry
Effects of Activation on Generated Biochar from Co-pyrolyzed Soursop Seeds (Annona muricata) and Mango Seeds (Magnifera indica) Biomass.
Electret Energy Sources Based on Electrical Conductors
Electrochemical Properties of a Titanium-Substituted KVPO4F Cathode for K-Ion Batteries
Electronic and Mechanical Properties of the Cubic Perovskite MoScO3
Electronic Structure Calculations of Materials Converting Energy: Thermoelectrics and Ion Batteries
Electrospun Vanadium Pentoxide Nanofibers as a Photocathode in a Light Rechargeable LIB
Experimental and Computational Investigations of the Multiple Impurities Effects on the SOFC Cathode Materials
Fabrication Strategies for Lightweight and High-performance Tubular Solid Oxide Fuel Cells
High Entropy Oxalates (HEOx) as Promising Anode Materials for Rechargeable Li-ion and Na-ion Batteries
Highly Stable and Efficient Perovskite Solar Cells with Functional Nanocomposites
Iron Oxide Redox Cycling for Low-cost Iron-air Batteries
Low-temperature Integration of Oxide-based All-solid-state Batteries Using a Ceramic Binder
Machine Learning Methods for Predicting Microstructural Changes in Solid Oxide Cell Electrodes
Manipulation of Ferroelectric Domain Walls and Light Absorption for Optimization of Bulk Photovoltaic Effect
Metal Composite Nano-Catalyst Enhanced Solid Oxide Fuel Cell Anodes for Increased Stability within Hydrocarbon Containing Fuels
Molecular Pathways to Al2S3 for Next Generation Battery Application
Molecular Precursors for Li2S as Cathode Material for Sustainable Energy Storage
Multi-layer Numerical Modeling of Selective Laser Melting Based Additive Manufacturing of Thermoelectric Powders
Non-precious Metal Catalysts with Core@shell Structure for AEM Electrolyzers
Nucleation and Growth of Cu2O: Effect of pH, Potential and Substrate
Preparation and Characterization of Metallic Ion-Doped LiNi0.8Co0.15Al0.05O2 Cathode Material
Probing BaCo0.4Fe0.4Zr0.2-XYXO3-δ Triple-Conductors as Cathode Materials for Protonic Ceramic Fuel Cells
Processing and Characterization of Li7La3Zr0.5Nb0.5Ta0.5Hf0.5O12 High-entropy Li-garnet Electrolyte
Properties of Carbon Nanotube Composite Conductors for High Performance Propulsion Motors
Proton Conducting Layered Perovskites of the Form Ba5Er2Al2ZrO13
Self-propagating High Temperature Synthesis of Chevrel Phase Sulfides from Elemental Precursors
Sustainable Bio-Engineered Magnetoelectric Nanogenerator to Convert Ambient Stray Magnetic Noise to Electricity
Synthesis of Ce-Doped NaSICON Using Mechanical-Activation-Enhanced-Process
The Development of a Machine Learning Guided Process for the Additive Manufacturing of Thermoelectric Materials
Thermoelectric Properties of Additively Manufactured Fe3Al2Si3
Thermoplastic Elastomers for High Performance Barocaloric Cooling
Thin-Film Glassy Solid Electrolytes Enabling High Energy Density Li Solid State Batteries

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