Alternative Energy Generation: Strategic Design of Photovoltaic and Thermoelectric Materials Using Modular Chemistry and Assembly, Interface Engineering, and Spectroscopic Characterization

This multidisciplinary team of chemists and physicists has complementary expertise in synthesis and spectroscopy, which allows us to explore novel materials with promise in photovoltaic and thermoelectric applications.  This collaboration will focus on developing new molecules/polymers/nanomaterials and hybrid materials as well as new surface chemistry routes to control the structure at the interface between such novel materials and other device components like electrodes.  Next, different state-of-the-art spectroscopic techniques will be used to quantify properties like photoluminescence, carrier dynamics, interfacial organization and composition.  This spectroscopic screening process will allow us to gain a broad understanding of structure-function relationships and hasten the identification of promising new material combinations for next-generation energy applications.

Classification of Half-Heusler Compounds through Machine Learning Approaches

Arthur Mar, Alex Gzyl, Lawrence Adutwum, Anton Oliynyk

Conference/Workshop

Classification of Half-Heusler Compounds through Machine-Learning Approaches

Arthur Mar, Alex Gzyl, Lawrence Adutwum, Anton Oliynyk

Conference/Workshop

Design and Synthesis of Tellurophenes to Advance Optoelectronic Applications

Conference/Workshop

Exposing Halide-Mixing in Hybrid Perovskite Materials Using Solid-State NMR

Karthik Shankar, Vladimir Michaelis, Michelle Ha, Abhoy Karmakar, Guy Bernard

Conference/Workshop

Exposing Halide-Mixing in Next-Generation Hybrid Organic-Inorganic Perovskite Materials using Solid-State NMR

Karthik Shankar, Vladimir Michaelis, Michelle Ha, Abhoy Karmakar, Guy Bernard

Conference/Workshop

High-Throughput Approaches for Discovering Thermoelectric Materials

Arthur Mar

Event

Hybrid Lead Mixed-Halide Perovskites: Mechanochemical Synthesis and Solid-State NMR Study

Karthik Shankar, Vladimir Michaelis, Michelle Ha, Abhoy Karmakar, Guy Bernard

Conference/Workshop

In Search of Coloured Intermetallics

Arthur Mar, Vidyanshu Mishra, Anton Oliynyk, Jan Poehls, Vladimir Michaelis, Guy Bernard

Conference/Workshop

Mechanochemical Synthesis of Hybrid Lead Mixed-Halide Perovskites: An Atomic Level Study Using Solid-State NMR

Vladimir Michaelis, Abhoy Karmakar

Conference/Workshop

Nonlinear Optics of Mineral Oxide Interfaces

Mokhtar Rashwan

Conference/Workshop

Photoluminescence dynamics of functionalized two-dimensional silicon nanosheets

Jonathan Veinot, Frank Hegmann, Mary Narreto

Conference/Workshop

Preparation and Properties of Amphiphilic Photoluminescent Silicon Nanocrystals

Xiyu Zhang

Conference/Workshop

Quarternary Rare-earth Transition-Metal Germanides: RE4M2CdGe4 and RE4M2AgGe4 (RE=La-SM, Gd-Lu, M=Mn-Ni)

Arthur Mar, Anton Oliynyk, Dong Zhang

Conference/Workshop

Quaternary Rare-Earth Transition-Metal Germanides RE4M2CdGe4 and RE4M2AgGe4 (RE = La–Sm, Gd–Tm, Lu; M = Mn–Ni)

Arthur Mar, Anton Oliynyk, Dong Zhang

Conference/Workshop

Seeing the Stern Layer at the Silica/Aqueous Interface Using Nonlinear Optical Spectroscopy

Juli Gibbs, Ben Rehl, Mokhtar Rashwan

Conference/Workshop

Structure and Luminescence Properties of Rare-Earth Chalcohalides RE3Ge2Ch8X (Ch = S, Se; X = Cl, Br, I)

Arthur Mar, Dundappa Mumbaraddi

Conference/Workshop

Tellurium-containing rings and their polymers for enhanced photovoltaics

Conference/Workshop

Terahertz photoconductivity of germanium inverse opal structures

Frank Hegmann, Mary Narreto

Conference/Workshop

Ternary Germanides in Ce-M-Ge System (M=Rh, Co)

Arthur Mar, Anton Oliynyk, Dong Zhang

Conference/Workshop

Ternary Germanides in the Ce–M–Ge (M = Rh, Co) Systems

Arthur Mar, Anton Oliynyk, Dong Zhang

Conference/Workshop

Thermally induced alkyl-silane dehydrocoupling on the surface of germanium nanocrystals

Jonathan Veinot, Md Asjad Hossain

Conference/Workshop

Time-resolved Terahertz Spectroscopy of Inverse Opal Ge Films

Frank Hegmann, Mary Narreto

Conference/Workshop

Towards Triplet-Based Photovoltaics: Iodinated Tellurophenes and Their Conjugated Polymers

Conference/Workshop

Chemistry Alumni International Graduate Scholarship

Abhoy Karmakar

Award

DAAD Short-term Research Award

Md Asjad Hossain

Award

Dr. R. Norman and Magda Kemeny Jones Travel Award

Abhoy Karmakar

Award

Mitacs Globalink Award for Asjad Hossain

Md Asjad Hossain

Award

Pansy and George Strange Graduate Scholarship

Abhoy Karmakar

Award

Rocky Mountain Conference Travel Stipend

Abhoy Karmakar

Award

Suraj Manra Graduate Student Presentation Award in Magnetic Resonance Spectroscopy (1st Place)

Abhoy Karmakar

Award

Composition-Tunable Formamidinium Lead Mixed Halide Perovskites via Solvent-Free Mechanochemical Synthesis: Decoding the Pb Environments Using Solid-State NMR Spectroscopy

Karthik Shankar, Vladimir Michaelis, Michelle Ha, Abhoy Karmakar

Scholarly Refereed Journal

Cu(II)-Doped CS2SbAgCl6 Double Perovskite: A Lead-Free, Low-Bandgap Material

Vladimir Michaelis, Abhoy Karmakar

Scholarly Refereed Journal

Mechanochemical Synthesis of Methylammonium Lead Mixed\textendash Halide Perovskites: Unraveling the Solid-Solution Behavior Using Solid-State NMR

Karthik Shankar, Vladimir Michaelis, Michelle Ha, Abhoy Karmakar

Scholarly Refereed Journal

Not Just Par for the Course: 73 Quaternary Germanides RE4M2XGe4 (RE = La–Nd, Sm, Gd–Tm, Lu; M = Mn–Ni; X = Ag, Cd) and the Search for Intermetallics with Low Thermal Conductivity

Arthur Mar, Anton Oliynyk, Dong Zhang

Scholarly Refereed Journal

Solving the Colouring Problem in Half-Heusler Structures: Machine-Learning Predictions and Experimental Validation

Arthur Mar, Alex Gzyl, Lawrence Adutwum, Anton Oliynyk

Scholarly Refereed Journal

Synthesis, structure, and properties of rare-earth germanium sulfide iodides RE3Ge2S8I (RE = La, Ce, Pr)

Arthur Mar, Vidyanshu Mishra, Dundappa Mumbaraddi, Anton Oliynyk

Scholarly Refereed Journal

Ternary and Quaternary Rare-Earth Transition-Metal Germanides

Arthur Mar, Dong Zhang

Masters Thesis

Triplet excitons: improving exciton diffusion length for enhanced organic photovoltaics

Karthik Shankar, Manisha Gupta

Scholarly Refereed Journal