Ali Javey (Advisor)

Research Advised by Professor Ali Javey

Javey Group:  List of Projects | List of Researchers

Low Contact Resistance WSe2 p-Type Transistors with Highly Stable, CMOS-Compatible Dopants

Inha Kim
Naoki Higashitarumizu
I K M Reaz Rahman
Shu Wang
Hyong Min Kim
Jamie Geng
Rajiv Ramanujam Prabhakar
Joel W. Ager III
Ali Javey
2024

High contact resistance has been a bottleneck in developing high-performance transition-metal dichalcogenide (TMD) based p-type transistors. We report degenerately doped few-layer WSe2 transistors with contact resistance as low as 0.23 ± 0.07 kΩ·μm per contact by using platinum(IV) chloride (PtCl4) as the p-type dopant, which is composed of ions compatible with the complementary metal-oxide-semiconductor (CMOS) fabrication process. Top-gated devices with a gate length of 200 nm showed good switching behaviors, implying that the dopant diffusion into the gate stack is not significant. The...

Inha Kim

Graduate Student Researcher
Applied Science and Technology
Professor Ali Javey (Advisor)
Ph.D. 2028 (Anticipated)

Theodorus Jonathan Wijaya

Visiting Scholar Researcher
Electrical Engineering and Computer Sciences
Professor Ali Javey (Advisor)
Ph.D. 2026 (Anticipated)

Theodorus is a Ph.D. candidate at The University of Tokyo and a visiting researcher in the Javey group at UC Berkeley for two years. His research focuses on solution-processed optoelectronic devices as part of a collaboration between the Javey group and the Someya group at The University of Tokyo, aiming to develop flexible mid-infrared electronics and explore their biomedical applications. He earned his B.Eng. and M.Eng. from The University of Tokyo in 2021 and 2023, respectively, with research experience in spintronics, solar cells, and organic electronics.

Machine Learning Assisted Gas Sensor Chip for Food Safety Applications

Carla Bassil
2025
Fall 2025 BSAC Research Review Presentation View Presentation View Slides Project:...

BSAC's Best: Fall 2025 Awards Announced

September 24, 2025

BSAC is pleased to announce the recipients of the Outstanding Paper and Presentation Awards from the Fall 2025 Research Review, held on September 24.

The Industrial Advisory Board was highly impressed by the depth and quality of research presented this year. Among a field of exceptional work, the award recipients distinguished themselves through innovation, technical rigor, and clear communication.

We extend our sincere appreciation to all BSAC Researchers for sharing their groundbreaking projects - each contribution advances discovery and strengthens...

Carla Bassil

Graduate Student Researcher
Electrical Engineering and Computer Sciences
Professor Ali Javey (Advisor)
Ph.D. 2028 (Anticipated)

Carla Bassil is a 3rd year EECS PhD student in Prof. Ali Javey's lab. She works on multi-modal gas sensing technology and platforms for food safety, human health, and environmental monitoring applications. Carla earned her MS in Business from May's Business School and her BS in Biomedical Engineering from Texas A&M University. She is passionate about working on translational research and hopes to pursue entrepreneurial endeavors following the completion of her degree.

BPNX1060: Wearable On-Skin Chemical Sensing (New Project)

Seung-Rok Kim
2025

We present a wearable platform for on-skin chemical sensing that enables continuous and real-time monitoring of metabolic activity. The device is designed to operate robustly during physical activities and under varying skin conditions, providing reliable measurements that may be useful for personalized health assessment.

Project is currently funded by: Industry Sponsored Research

BPNX1031: Scalable Infrared Photodetectors based on Large-Grain Tellurium Film

Hyong Min Kim
Naoki Higashitarumizu
Theodorus Jonathan Wijaya
2025

Tellurium is a narrow-gap, p-type semiconductor with promising potential for future electronic and optoelectronic devices. Te’s band gap can be tuned from 0.31 eV in bulk form to 1.04 eV in monolayer form. Unlike many other competing 2D semiconductors, Te is air-stable and can be deposited on a substrate of choice by thermal evaporation or solution synthesis. Photodetectors based on solution-synthesized Te nanoflakes have already been demonstrated, with specific detectivity in near-IR at or above 10^9 Jones. However, solution-synthesis of Te nanoflakes is not scalable, and...

BPN999: Wearable Sweat Sensors with High-Throughput Fabrication

Seung-Rok Kim
Noelle Davis
Pooja Mehta
Amanda King
Yullim Lee
Nicole Qing
2025

We have been developing sweat sensors to analyze physiological and metabolic health information, such as sweat rate, glucose levels, pH, and various electrolytes, from any surface on the body surface where sweat glands are present. However, the stiff sweat sensors developed so far struggle to detect subtle signal changes, especially on soft skin. This is due to a mechanical mismatch between the rigid sweat sensor and the pliable skin, which can lead to motion artifacts and delamination of the patch from skin. Specifically, the stiff sensor cannot easily stretch along with the...

BPNX1022: Multiplexed Gas Sensors

Carla Bassil
Kichul Lee
2025

Gas sensing has long been an area of academic and industrial interest. However, state of the art sensors still lack selectivity and sensitivity when it comes to differentiating gases of similar compositions. In this work, we explore methods to create multiplexed gas sensors that can differentiate these mixtures with high accuracy and long-term stability.

Project is currently funded by: Federal