John Devin MacKenzie

Scalable Buried Passivation of Wide-Bandgap Perovskite Solar Cells

Tanka Raj Rana, Mazhar Abbas, Ethan Schwartz, Dhruba B. Khadka et autres

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Scalable Buried Passivation of Wide-Bandgap Perovskite Solar Cells

Tanka Raj Rana, Mazhar Abbas, Ethan Schwartz, Dhruba B. Khadka et autres

Deterministic Printing of Single Quantum Dots

Gregory G. Guymon, Hao Nguyen, David Sharp, Tommy Nguyen et autres

Abstract The unique optical properties of quantum dots (QDs), size‐tunable emission, and high quantum yield make them ideal candidates for applications in secure quantum communication, quantum computing, targeted single‐cell and molecular tagging, and sensing. Scalable and deterministic heterointegration strategies for single QDs …

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Flexible Screen-Printed Antenna for 5G n260 Band

Henry Lei, Jerry Lopez, John Devin MacKenzie

In this work, screen-printed antennas fabricated on$25 \mu \mathrm{m}$polyimide substrate operating at the 37-40 GHz 5G n260 mmWave frequency band are presented. Antenna return loss was simulated and compared with measurements from the frequency range of 20 to 40 GHz. A printing …

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Optimizing Perovskite Solar Cell Performance and Stability Through Automated, Multimodal Characterization

Anthony T. Troupe, Brandon T. Motes, John Devin MacKenzie, Dane W. deQuilettes

Perovskite photovoltaic (PV) devices have achieved power conversion efficiencies exceeding 25%, but stability challenges remain as critical obstacles to commercialization. Degradation mechanisms often involve complex interactions between bulk materials and interfaces, influenced by both intrinsic and extrinsic factors such as light induced …

ThermoTape: A Temperature-Responsive Medical Adhesive Minimizing MARSI Risks With Adaptability Across Applications and Wear Durations

Ruofan Liu, Shawn Swanson, Michael R. Krejsa, John Devin MacKenzie et autres

Abstract Medical adhesives are vital for securing wearable sensors, wound dressings, and critical medical devices. These adhesives must balance strong adhesion with patient comfort, especially when used over extended periods. Adhesives that maintain their efficacy for more than 2 weeks are essential …

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Deterministic printing and heterointegration of single quantum dots

John Devin MacKenzie, Gregory G. Guymon, Hao Nguyen, David Sharp et autres

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Screen-Printed Flexible Antennas for 24-GHz ISM Band and mmWave Applications

Henry Lei, Tirth R. Patel, Jerry Lopez, John Devin MacKenzie

In this work, flexible antennas additively manufactured via screen printing of copper conductive inks are presented. Antennas such as straight dipoles, meandering dipoles, and circular disc monopoles are designed for operation at 24 GHz then manufactured on a variety of flexible substrates, …

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Deterministic Printing of Single Quantum Dots

Gregory G. Guymon, Hao Nguyen, David Sharp, Henry Lei et autres

The unique optical properties of quantum dots (QDs), size-tunable emission and high quantum yield, make them ideal candidates for applications in secure quantum communication, quantum computing, targeted single-cell and molecular tagging, and sensing. Scalable and deterministic heterointegration strategies for single QDs have, …

Improved reverse bias stability in p–i–n perovskite solar cells with optimized hole transport materials and less reactive electrodes

Fangyuan Jiang, Yangwei Shi, Tanka Raj Rana, Daniel A. Morales et autres

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Electrohydrodynamic Inkjet Printed Flexible Ceramic Rectenna for 5.8 GHz ISM Band

Henry Lei, Tirth R. Patel, Ziyan Liu, Jerry Lopez et autres

This work presents the first reported case of a flexible ceramic rectenna operating in the 5.8 GHz ISM band with electrohydrodynamic inkjet (EHDIJ) printed conductors on Corning 40 micron thick alumina ribbon ceramics (ARC). The viability of using EHDIJ as an additive …

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Electrohydrodynamic Printing‐Based Heterointegration of Quantum Dots on Suspended Nanophotonic Cavities

Gregory G. Guymon, David Sharp, Theodore A. Cohen, Stephen Larken Gibbs et autres

Abstract Nanophotonic structures are a foundation for the growing field of light‐based quantum networks and devices enabled by their ability to couple with and manipulate photons. Colloidal quantum dots (QDs) are uniquely suited to complement this range of devices due to their …

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