Publications

A first-year graduate student, Yu-Lin (Nick) Hsu, won a Student Award at M&M (Microscopy and Microanalysis Conference; https://www.microscopy.org/MandM/2021/). We also congratulate our former graduate student, Kaden Powell, who had initiated this work.

Their project focuses on hybrid metal-halide perovskite solar cells. M&M is the largest international microscopy conference, often having over 1600 attendees. We are so proud of them. We thank our collaborators (Dr. Chongwen Li, Prof. Yanfa Yan at University of Toledo).

• MSA site: https://www.microscopy.org/awards/onsiteawards.cfm
• ECE News: https://www.ece.utah.edu/2021/08/12/ece-students-awarded-for-research-poster/

This work was supported by the U.S. Department of Energy under the DE-FOA-0002064 program award number DE-EE0008985 and the National Science Foundation (NSF CAREER 5850323).

Dr. Yoon is invited to give a talk at the Advanced Photonics Congress (OSA, The Optical Society) in July, 2021. She will discuss the recent progress on the “Nanocontact Approach” for thin-film photovoltaic materials and devices (CdTe, perovskites).

Kaden and Nick gave a presentation at the Electronic Materials Conference (EMC). The EMC was held online owing to the COVID situation. Thank you for your work.

Yang/David’s paper is online now (Scientific Reports). Thank you for their dedication. We also thank to our collaborators.

Yang Qian, David J. Magginetti, Seokmin Jeon, Yohan Yoon, Tony L. Olsen, Maoji Wang, Jordan M. Gerton & Heayoung P. Yoon, “Heterogeneous optoelectronic characteristics of Si micropillar arrays fabricated by metal-assisted chemical etching”, Scientific Reports 10, 16349 (2020)

https://www.nature.com/articles/s41598-020-73445-x

Kaden’s first paper has been published. Congratulations!

Powell, K.M., Yoon, H.P., “Depth-dependent EBIC microscopy of radial-junction Si micropillar arrays”, Appl. Microsc. 50, 17 (2020).

https://doi.org/10.1186/s42649-020-00037-4 (here)

Our Collaborative work with NIST and NRL is presented in an ACS paper.

“Unveiling Defect-Mediated Charge-Carrier Recombination at the Nanometer Scale in Polycrystalline Solar Cells”, Yohan Yoon, Wei-Chang D. Yang*, Dongheon Ha, Paul M. Haney, Daniel Hirsch, Heayoung P. Yoon, Renu Sharma, and Nikolai B. Zhitenev, ACS Appl. Mater. Interfaces 2019, 11, 50, 47037–47046 (2019); https://pubs.acs.org/doi/full/10.1021/acsami.9b14730

David, Dr. Aguiar, and Dr. Yoon present the development of lightweight and flexible CdTe PVs at the M&M conference (Portland, OR).

David’s paper is selected as cover for Advanced Materials Interfaces. Congratulations, David.

“Observation and Implications of Composition Inhomogeneity Along Grain Boundaries in Thin Film Polycrystalline CdTe Photovoltaic Devices“, S. Misra¹, J. A. Aguiar², Y. Sun³, B. V. Devener², V. Palekis⁴, C. S. Ferekides⁴, H. P. Yoon¹, P. Bermel³, M. A. Scarpulla¹, Advanced Materials Interfaces 1900152, 2019.

1. Electrical and Computer Engineering, University of Utah, Salt Lake City, UT 84102, USA
2. Nuclear Materials Department, Idaho National Laboratory, Idaho Falls, ID 83415, USA
3. Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47906, USA
4. Electrical Engineering, University of South Florida, Tampa, FL 33620, USA

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