We are pleased to welcome Jason Smith, a BS/MS student in ECE. With his strong background in physics and engineering, we are excited about the skills and perspective he brings to the radiation project. We look forward to his contributions.
Author: HPY
2025 12 From Concept to Flight: Senior Capstone
As part of a Capstone project, our group member, Donggeon, collaborated with other students to design and build a drone from scratch (advisor: Dr. Yoon). This project integrates design, electronics, and control systems, with a potential for PV integration. The team demonstrated a fully functional drone that successfully achieved stable flight.
2025 12 Welcoming a Group Graduate Back for an Industry Seminar
We were delighted to host an industry guest seminar (Texas Instruments) and welcome a graduate (Mr. Arron Coon) from our group back to campus.
It was great to reconnect and hear about their professional journey.
2025 11 Thanksgiving Lunch

We came together for a Thanksgiving group lunch; good food, great conversations, and a short walk at Red Butte Garden.
(Left: Etee, Donggeon, Ashraful, Taehoon, Ashif, Judy, and Dr. Yoon)
2025 11 Dr. Yoon leads PhD Brown-Bag Series.

Our monthly PhD Brown Bag series is an informal gathering where students share research updates, ideas, and challenges in a relaxed setting. Dr. Yoon leads the sessions for open discussion, peer feedback, and community building across the group.
2025 10 Celebrating Ashif’s Successful PhD Defense

Ashif successfully defended his PhD before a large, engaged audience. There were many good questions, all of which Ashif answered clearly and with his deep understanding of the work.
The lively discussion and strong responses made the defense a clear success.
Congratulations, Dr. Chowdhury!
2025 09 Congratulations to Ashraful on Passing Proposal Exam.
Congratulations to Ashraful on successfully passing his proposal exam! This is an important milestone, and we look forward to seeing his research continue to take shape and move forward.
2025 07 Etee and Ashraful give their presentations at M&M.
Etee gave a poster presentation on “Characterization of CdTe Back-Contacts with Thick Alumina Reflectors”.
Ashraful delivered a talk titled “Characteristics of CdTe Solar Cells Irradiated Under Neutron Beam”.
Both senior students are making good progress in their research projects, and continue to demonstrate strong technical understanding and research independence.

2025 04 Two Presentations at the MRS Spring Meeting
Yoon’s group presented two project results at the Materials Research Society (Spring 2025).
(1) Stressor Effects in CdTe Solar Cells with Patterned Al2O3 Back-Contacts – Ashraful Mamun’s project
(2) Fabrication of Asymmetrical Micro/Nanohole Arrays for Translucent Solar Cells – Ashif Chowdhury’s project
2024 09 Etee & Ashraful’s Journal Paper

We are excited to have a new publication by Etee and Ashraful on point-contact CdTe back contacts incorporating an Al₂O₃ back reflector. The work demonstrates an effective back-contact design that enhances device performance and provides valuable insights into interface engineering for CdTe solar cells.
“Microstructural Passivation of Patterned Al2O3 Back Contacts on CdS/CdTe Solar Cells”, Advanced Materials Interfaces (https://doi.org/10.1002/admi.202400501)

