BartelsLab at UC Riverside

Welcome to the BartelsLab!

Surfaces, 2D and 1D Materials for Microelectronic and Catalytic Applications

1D Metallic TaSe₃!

Extreme Current Density and high electromigration barrier.

Novel Materials for Interconnects

Epitaxial MoS₂/GaN!

Clean Interface → Superior Schottky Diode Behavior

Scalable Growth of 2D Material Stacks

Research

Atomic-structure diagram of molybdenum disulfide

2D Materials

We operate a large number of tube furnaces and vacuum chambers for CVD growth of 2D Materials.

Molecular-beam epitaxy chamber in the BartelsLab

UHV and MBE Growth

We grow stacks of 2D Materials in ultra-high vacuum using solid-source CVD and MBE.

$Animated low-energy electron diffraction pattern$

Characterization

We perform X-Ray Photoelectron Spectroscopy (XPS) and Low Energy Electron Diffraction (LEED) in our lab.

Tube furnace used for 1D material synthesis

1D Materials

We develop methods for the preparation of 1D materials, including for potential interconnect applications in microelectronics.

Fabricated semiconductor device

Device Fabrication

We are one of the largest users of UCR's Semiconductor Cleanroom.

Interdigital transducer chip used for surface acoustic wave measurements

Electrical Characterization

We perform electrical characterization of our materials from DC to MHz Surface Acoustic Wave Spectroscopy.

Works

Some impressions from our lab

Schematic showing gold nanoparticles on an MoS2 interlayer oxidizing CO — An MoS₂ interlayer enables Au nanoparticles to oxidize CO at room temperature.
Read in J. Phys. Chem. C 123, 6592 (2019)

Cross-section illustration of MoS2 layer grown on GaN substrate — Clean high-vacuum growth of MoS₂ on GaN (Gallium Nitride) facilitates electron transport at the interface and creates native p-type material.
Read in ACS Appl. Mat. Interfaces 13, 35105 (2021)

BartelsLab graduate-student group photo — Interested in Graduate Studies in Chemistry or MSE?

In our lab, graduate students from Chemistry, Physics and Engineering work jointly toward new materials and their characterization.

Interested? Email Prof. Bartels about graduate studies

Wafer-scale high-vacuum growth setup for MoS2 thin films — Wafer-scale high-vacuum growth of MoS₂ from gaseous and metal-wire sources allows clean deposition and real-time control of layer thickness.
Read in ACS Appl. Mat. Interfaces 10, 33547 (2018)

Photoluminescence-shift data after selenium exchange of MoS2 top layer — Sputtering of MoS₂ single-layer films and subsequent exposure to selenium can exchange the top sulfur layer, leading to a shift in photoluminescence and reduced-symmetry material.
Read in ACS Nano 8, 4672 (2014)

MoTe2 phase diagram comparing growth under different process gases — Choice of process gas can determine the phase of MoTe₂ grown by chemical vapor deposition.
Read in ACS Nano 11, 900 (2017)

BartelsLab undergraduate researchers, 2017 — Undergraduate Research Opportunities

At most times, a significant number of undergraduate students work on thin-film preparation in our lab.

Interested? Email Prof. Bartels about undergraduate research

Quasi-one-dimensional atomic chains in TaSe3 crystal — Quasi-1D atom chains in TaSe₃ allow high electrical conductivity and a breakdown current 10x that of copper.
Read in Nano Letters 19, 4355 (2019)

MacREU summer research cohort at UC Riverside — MacREU summer research opportunity

Each year students from SoCal community and 4-year colleges come to UCR for paid summer research fellowships.
Learn more about MacREU

Crystal of ZrTe3 grown by chemical vapor deposition — Quasi-1D atom chains in ZrTe₃ grown by chemical vapor deposition.
Read in Crystal Growth & Design 21, 6537 (2021)

Surface acoustic wave device with MoS2 on lithium niobate — Growth of MoS₂ on piezoelectric lithium niobate offers surface acoustic wave spectroscopy of the electronic properties of the film.
Read in Nature Communications 6, 8593 (2016)

BartelsLab undergraduate researchers, 2016 — Undergraduate Research Opportunities

At most times, a significant number of undergraduate students work on thin-film preparation in our lab.

Interested? Email Prof. Bartels about undergraduate research

Ludwig Bartels

Portrait of Professor Ludwig Bartels — Ludwig Bartels

Professor of Chemistry

Founding Graduate Advisor of UCR's MSE Graduate Program

Courtesy Appointments in Physics & Electrical Engineering
Bartels[at]ucr.edu

Current and Past Group Members

Only displaying past and current members with active LinkedIn profiles; click on the image to connect.

Attend my Class

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During Class

Grades and Materials

Publications

For publications, please refer to Google Scholar.

Google Scholar