Spectroscopic, structural, and strain-dependent analysis of suspended bulk WSe2 sheets

Article utilizing Raman spectroscopy and photoluminescence (PL) spectroscopy to analyze the phononic and electronic parameters in suspended bulk WSe₂ sheets, fabricated utilizing photolithography and wet chemical etching. The findings of this work will be beneficial in analyzing thermal, optical, and mechanical properties of WSe₂ in a suspended platform for its application in electronic, thermoelectric, and mechanical sensors in the future.
Date: February 8, 2022
Creator: Bandyopadhyay, Avra S. & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library
Ultra-High Temperature Stable Morphing Materials for Hypersonic Applications (open access)

Ultra-High Temperature Stable Morphing Materials for Hypersonic Applications

Data management plan for the grant, "Ultra-High Temperature Stable Morphing Materials for Hypersonic Applications"
Date: 2022-04-12/2025-02-28
Creator: Aouadi, Samir
Object Type: Text
System: The UNT Digital Library
Development of Combinatorial Processing Techniques for Accelerated Discovery of Complex Concentrated Alloy (or Multi-Principal Element Alloys) for Structural Applications (open access)

Development of Combinatorial Processing Techniques for Accelerated Discovery of Complex Concentrated Alloy (or Multi-Principal Element Alloys) for Structural Applications

Data management plan for the research grant, "Development of Combinatorial Processing Techniques for Accelerated Discovery of Complex Concentrated Alloy (or Multi-Principal Element Alloys) for Structural Applications"
Date: 2022-05-15/2023-05-14
Creator: Banerjee, Rajarshi
Object Type: Text
System: The UNT Digital Library
Role of Cu addition in enhancing strength-ductility synergy in transforming high entropy alloy (open access)

Role of Cu addition in enhancing strength-ductility synergy in transforming high entropy alloy

Article investigates the strength-ductility synergy of high-entropy alloys (HEAs).
Date: March 1, 2022
Creator: Agrawal, Priyanka; Gupta, Sanya; Shukla, Shivakant; Nene, Saurabh S.; Thapliyal, Saket; Toll, Michael P. et al.
Object Type: Article
System: The UNT Digital Library
Additive friction stir deposition of AZ31B magnesium alloy (open access)

Additive friction stir deposition of AZ31B magnesium alloy

Article explores additive friction stir deposition of AZ31B magnesium alloy with the aid of MELD® technology.
Date: May 3, 2022
Creator: Joshi, Sameehan; Patil, Shreyash M.; Mazumder, Sangram; Sharma, Shashank; Riley, Daniel A.; Dowden, Shelden et al.
Object Type: Article
System: The UNT Digital Library
Unveiling the interplay of deformation mechanisms in a metastable high entropy alloy with tuned composition using synchrotron X-ray diffraction (open access)

Unveiling the interplay of deformation mechanisms in a metastable high entropy alloy with tuned composition using synchrotron X-ray diffraction

Article investigating the mechanical behavior of a metastable high entropy alloy (HEA) with composition Fe39-Mn20-Co20-Cr15-Si5-1Al (at%).
Date: January 15, 2022
Creator: Polatidis, E.; Shukla, S.; Čapek, J.; Van Petegem, S.; Casati, N. & Mishra, R. S.
Object Type: Article
System: The UNT Digital Library
Highly complex magnetic behavior resulting from hierarchical phase separation in AlCo(Cr)FeNi high-entropy alloys (open access)

Highly complex magnetic behavior resulting from hierarchical phase separation in AlCo(Cr)FeNi high-entropy alloys

Article presents for the first time the influence of a hierarchically decomposed B2 + A2 structure in an AlCo0.5Cr0.5FeNi HEA on the formation of magnetic vortex states within individual A2 (disordered BCC) precipitates, which are distributed in an ordered B2 matrix that is weakly ferromagnetic.
Date: March 10, 2022
Creator: Lan, Qianqian; Kovács, András; Caron, Jan; Du, Hongchu; Song, Dongsheng; Dasari, Sriswaroop et al.
Object Type: Article
System: The UNT Digital Library
The Transformation from Translucent into Transparent Rare Earth Ions Doped Oxyfluoride Glass-Ceramics with Enhanced Luminescence (open access)

The Transformation from Translucent into Transparent Rare Earth Ions Doped Oxyfluoride Glass-Ceramics with Enhanced Luminescence

Article reporting a scenario where a translucent Er3+−Yb3+ doped oxyfluoride precursor glass-ceramic (P-GC) becomes transparent with increasing crystal size and crystallinity.
Date: May 11, 2022
Creator: Li, Zhencai; Chen, Chunying; Shen, Weihui; Zhou, Dacheng; Jensen, Lars R.; Qiao, Xvsheng et al.
Object Type: Article
System: The UNT Digital Library
Formation and Photoinduced Electron Transfer in Porphyrin- and Phthalocyanine-Bearing N-Doped Graphene Hybrids Synthesized by Click Chemistry (open access)

Formation and Photoinduced Electron Transfer in Porphyrin- and Phthalocyanine-Bearing N-Doped Graphene Hybrids Synthesized by Click Chemistry

Article presents research where N-doped graphene (NG) has been covalently decorated with porphyrin and phthalocyanine moieties using click chemistry. Evidence of charge separation in these hybrids is secured from femtosecond transient absorption studies, acting NG as electron acceptor.
Date: March 7, 2022
Creator: Arellano, Luis M.; Gobeze, Habtom B.; Barrejón, Myriam; Parejo, Concepción; Álvarez, Julio C.; Gómez-Escalonilla, María J. et al.
Object Type: Article
System: The UNT Digital Library
Friction stir-based additive manufacturing (open access)

Friction stir-based additive manufacturing

This article is a review of friction stir additive manufacturing (FSAM) and additive friction stir deposition (AFSD) and provides a systems approach framework and a conceptual process model to guide researchers.
Date: January 18, 2022
Creator: Mishra, Rajiv; Haridas, Ravi Sankar & Agrawal, Priyanshi
Object Type: Article
System: The UNT Digital Library
Polymorphic nature of {332} 〈 113 〉 twinning mode in BCC alloys (open access)

Polymorphic nature of {332} 〈 113 〉 twinning mode in BCC alloys

Article using ab initio calculations and experimental observations to show that {332}<113> twinning can be described as a polymorphic solid-state transformation able to produce either twinned or martensitic structures with a unified transformation path.
Date: March 17, 2022
Creator: Kwasniak, P.; Sun, F.; Mantri, Srinivas Aditya; Banerjee, Rajarshi & Prima, Frederic
Object Type: Article
System: The UNT Digital Library
Polymeric Coatings for Skutterudite-Based Thermoelectric Materials (open access)

Polymeric Coatings for Skutterudite-Based Thermoelectric Materials

Article is a study with the main objective of mitigation of thermal degradation of skutterudite-based thermoelectric materials—so as to extend the service life of those materials and make them more attractive for industry from the economical perspective. Significant mitigation of oxidation and sublimation of thermoelectric (TE) materials was achieved.
Date: February 17, 2022
Creator: Brostow, Witold, 1934-; Chen, Ikang & Hagg Lobland, Haley E.
Object Type: Article
System: The UNT Digital Library
Highly efficient and selective electrocatalytic hydrogen peroxide production on Co-O-C active centers on graphene oxide (open access)

Highly efficient and selective electrocatalytic hydrogen peroxide production on Co-O-C active centers on graphene oxide

Article demonstrating that single cobalt atoms anchored on oxygen functionalized graphene oxide form Co-O-C@GO active centres (abbreviated as Co₁@GO for simplicity) act as an efficient and durable electrocatalyst for H₂O₂ production.
Date: March 28, 2022
Creator: Zhang, Bin-Wei; Zheng, Tao; Wang, Yun-Xiao; Du, Yi; Chu, Sheng-Qi; Xia, Zhenhai et al.
Object Type: Article
System: The UNT Digital Library
In-Situ Monitoring for Quality Assurance and Machine Learning in Direct-Write Additive Manufacturing of 5G RF Electronic Ceramics (open access)

In-Situ Monitoring for Quality Assurance and Machine Learning in Direct-Write Additive Manufacturing of 5G RF Electronic Ceramics

Data management plan for the grant, "In-Situ Monitoring for Quality Assurance and Machine Learning in Direct-Write Additive Manufacturing of 5G RF Electronic Ceramics." The principal near-term objective of the PI is to use in-situ monitoring to define the processing rules that determine the microstructure, macrostructure, and high-frequency dielectric response of electronic ceramic materials for advanced RF “grown” by laser-assisted direct-write AM. In-situ measurements will be correlated and validated with ex-situ characterization, and these data will iteratively guide synthesis and processing optimization. In parallel, the experimental measurements will be used as inputs for the physics-based process modeling. Predictions from the experimentally validated models will in turn: 1) guide synthesis and processing optimization and, 2) train and constrain ML. Thus, quality assurance is achieved.
Date: 2022-09-01/2025-06-30
Creator: Shepherd, Nigel D.
Object Type: Text
System: The UNT Digital Library
Stabilized anode-electrolyte interfaces via Cs4Pb(Cl/Br/I)6 perovskite crystal based glass-ceramics for fast and long cycle-life lithium ion batteries (open access)

Stabilized anode-electrolyte interfaces via Cs4Pb(Cl/Br/I)6 perovskite crystal based glass-ceramics for fast and long cycle-life lithium ion batteries

Article is a study that designs a smart anode/liquid electrolyte interface for high energy density batteries that present large specific capacity retentions.
Date: June 17, 2022
Creator: Xie, Wenqing; Cao, Jianghang; Li, Panpan; Fan, Meiqiang; Xu, Shiqing; Du, Jincheng et al.
Object Type: Article
System: The UNT Digital Library
Solid-State Additive Manufacturing of Durable Aluminum-Cerium Alloys for High-Temperature Aerospace Structural Applications (open access)

Solid-State Additive Manufacturing of Durable Aluminum-Cerium Alloys for High-Temperature Aerospace Structural Applications

Data management plan for the grant, "Solid-State Additive Manufacturing of Durable Aluminum-Cerium Alloys for High-Temperature Aerospace Structural Applications."
Date: 2022-10-01/2023-09-30
Creator: Vasudevan, Vijay K.
Object Type: Text
System: The UNT Digital Library
Progress in Superlubricity Across Different Media and Material Systems—A Review (open access)

Progress in Superlubricity Across Different Media and Material Systems—A Review

Article provides an overview of recent progress in superlubricity research involving solid, liquid, and gaseous media and discuss the prospects for achieving superlubricity in engineering applications leading to greater efficiency, durability, environmental quality, and hence global sustainability.
Date: August 12, 2022
Creator: Ayyagari, Aditya; Alam, Kazi Istiaque; Berman, Diana & Erdemir, Ali
Object Type: Article
System: The UNT Digital Library
Solution-processed dielectric films and Au RF antenna for temperature sensing (open access)

Solution-processed dielectric films and Au RF antenna for temperature sensing

Article discusses how sensing temperature is important for a wide variety of applications such as control systems and instrumentation which are integral to various industrial sectors and in research settings. The authors emphasize the importance of high sensitivity and reliable methods using a frequency-based approach for detecting temperature changes. In their study, Au rectangular single-arm spiral antennas with varying sizes were fabricated and RF S-parameter measurements were conducted over the frequency range of 300 kHz to 20 GHz. Alongside the experimental measurements, they also present results from their simulation analysis conducted using High Frequency Structure Simulator (HFSS) from ANSYS.
Date: October 3, 2022
Creator: Aryal, Sujan; Biswas, Dipon K.; Mehta, Ravindra K.; Mahbub, Ifana & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library
Inkjet-printed graphene’s electrical response to external gas flow for sensing applications (open access)

Inkjet-printed graphene’s electrical response to external gas flow for sensing applications

Article discusses how understanding gas flow behavior is crucial in the ability of materials to sense toxic gasses for environmental, industrial, safety, agriculture, and related applications. In their study, the authors measure the electrical transport characteristics of ink jet printed graphene to incoming gas flow, specifically to N2 and CO2. This work serves as a prototypical platform to study the device characteristics of solution processed graphene and other 2D materials for more exotic gases in the future for gas sensing applications.
Date: October 3, 2022
Creator: Mather, Thomas; Mehta, Ravindra K. & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library
Photoexcitation of C₆₀-WSe₂ hybrids for optical sensing (open access)

Photoexcitation of C₆₀-WSe₂ hybrids for optical sensing

Article discusses a study on synthesizing 0D-2D vdW heterostructure by spin coating C60 molecules on halide-assisted-low-pressure chemical-vapor-deposition (HA-LPCVD) produced monolayer WSe2 flakes. The study reveals that WSe2-C60 hybrid system is an appealing choice for next generation optical sensing devices.
Date: October 3, 2022
Creator: Jayanand, Kishan; Bastos, Silvino P. & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library
Light-matter Interactions in Transition Metal Dichalcogenides and Organohalide Perovskites for Photoabsorbers and Solar Cells (open access)

Light-matter Interactions in Transition Metal Dichalcogenides and Organohalide Perovskites for Photoabsorbers and Solar Cells

Article discusses findings on two distinct classes of van der Waals solids, that based on in-organic transition metal dichalcogenides and the other based on a hybrid mixed organic-inorganic composition of 2D perovskites, specifically organo-halides (CH3(CH2)3NH3)2(CH3NH3)n-1PbnI3n+1.
Date: October 3, 2022
Creator: Kaul, Anupama
Object Type: Article
System: The UNT Digital Library

Plexcitonic interactions in spherical and bi-pyramidical Au nanoparticles with monolayer WSe₂

Article describes how plasmons associated with zero-dimensional (0D) metal nanoparticles and their synergistic interactions with excitons in two-dimensional (2D) semiconductors offer opportunities for remarkable spectral tunability not otherwise evident in the pristine parent materials, which necessitates an in-depth study elucidating the nature of the plasmonic and excitonic interactions, jointly referred to as plexcitons in order to understand the foundational aspects of the light–matter interactions in hybrid 0D–2D systems. The authors examine the plexcitonic interactions of van der Waals (vdWs) hybrid structures composed of 2D WSe2 and 0D Au nanoparticles (Au-NPs) in their spherical (Au-Sp) and bi-pyramidical (Au-BP) architectures, which demonstrates that geometry-mediated response of the AuNPs provides another degree of freedom to modulate the carrier photodynamics in WSe₂.
Date: November 15, 2022
Creator: Jayanand, Kishan & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library
Stability and degradation in triple cation and methyl ammonium lead iodide perovskite solar cells mediated via Au and Ag electrodes (open access)

Stability and degradation in triple cation and methyl ammonium lead iodide perovskite solar cells mediated via Au and Ag electrodes

Article focuses on the fact that there are no clear mechanisms for the interaction of electrode-induced absorber degradation pathways. Furthermore, the authors hypothesize that the formation of AgI in the PSCs, leads to corrosion of the perovskite absorber, as opposed to the benign AuI when Au electrodes are used in the solar cell stack.
Date: November 3, 2022
Creator: Kranthiraja, Kakaraparthi; Parashar, Mritunjaya; Mehta, Ravindra K.; Aryal, Sujan; Temsal, Mahdi & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library
Optical Property and Stability Study of CH₃(CH₂)₃NH₃)₂(CH₃NH₃)₃Pb₄I₁₃ Ruddlesden Popper 2D Perovskites for Photoabsorbers and Solar Cells and Comparison with 3D MAPbI₃ (open access)

Optical Property and Stability Study of CH₃(CH₂)₃NH₃)₂(CH₃NH₃)₃Pb₄I₁₃ Ruddlesden Popper 2D Perovskites for Photoabsorbers and Solar Cells and Comparison with 3D MAPbI₃

Article discussing two-dimensional organic halide layered perovskites in the Ruddlesden Popper structure (CH3(CH2)3NH3)2(CH3NH3)n􀀀1PbnI3n+1) layered perovskites in the Ruddlesden Popper structure, represented as BA2MA3Pb4I13 for the n = 4 formulation, for both photoabsorbers in a two-terminal architecture and solar cells. A comparative study of the 3DP and 2DP film stability was also conducted.
Date: September 20, 2022
Creator: Kranthiraja, Kakarapathi; Aryal, Sujan; Temsal, Mahdi; Sharma, Mohin & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library