About Me
![](https://sites.wustl.edu/junyizhao/files/2023/08/IMG_8566-4-350x417.jpg)
Ph.D. in Electrical Engineering
Washington University in St. Louis
Hi! I’m Junyi ~
I received my Ph.D. in Electrical Engineering from Washington University in St. Louis (WashU). Previously, I worked as a Research Scientist intern at Meta Reality Labs (formerly Facebook).
My research interests span various Soft/Flexible/Stretchable/Wearable Electronics:
1) Flexible/Stretchable Optoelectronic Devices (perovskite-based light-emitting diodes, photodetectors, solar cells, lasers, etc.)
2) Soft sensors & Medical-grade Wearable Electronic Systems for real-time health monitoring in everyday and clinical contexts
3) Human-Computer Interactions (HCI): input devices, haptics display, human-machine interface
(4) Neurological Micro-/Nano-electronics.
Education
2019-2024 | Ph.D. in Electrical Engineering |Washington University in St. Louis
2016-2019 | B.S. in Mechanical Engineering | Huazhong University of Science & Technology
Professional Experiences
Oct 2023-May 2024 | Research Scientist (intern) | Meta Reality Labs (formerly Facebook)
Jul 2018- Nov 2018 | Visiting Research Assistant | Electrical & Computer Engineering at University of Houston
Affiliations
2019-2024 | Research Assistant | Electrical & Systems Engineering at Washington University in St. Louis, US
Advisor: Prof. Chuan Wang
2018-2018 | Visiting Research Assistant | Electrical & Computer Engineering at University of Houston, US
Advisor: Prof. Jiming Bao
2017-2019 | Research Assistant | State Key Lab of Digital Manufacturing Equipment & Technology, CN
Advisor: Prof. Yongan Huang
2017-2019 | Undergraduate Researcher | Flexible Electronics Research Center, CN
Advisor: Prof. Yongan Huang
Latest News
Aug 17, 2024 | Junyi gave a talk at the ACS 2024 Fall Meeting on “E-textile for Wearable Healthcare” in Denver, CO.
![](https://sites.wustl.edu/junyizhao/files/2024/10/2024Fall-1024x427.jpg)
Aug 10, 2024 | CAS Future Leaders! Junyi was selected to attend the 2024 CAS Future Leaders Program in Columbus, OH. link
![](https://sites.wustl.edu/junyizhao/files/2024/10/cf401f03-ac3a-471b-bef2-2bfe6fce970f.png)
Jul 02, 2024 | PhD done! Junyi has successfully defended his Ph.D. Dissertation! He is now officially a Ph.D. in Electrical Engineering.
![](https://sites.wustl.edu/junyizhao/files/2024/07/046a4ec5cee530b8e982b67bab890968-1-1024x768.jpg)
Apr 19, 2024 | Award! Junyi is selected as a recipient of the Siteman Travel Award ($1500 travel funds) by the Siteman Cancer Center and Washington University School of Medicine.
![](https://sites.wustl.edu/junyizhao/files/2024/06/siteman-1.png)
Apr 17, 2024 | Award! Junyi is selected as a recipient of The Outstanding Doctoral Dissertation Award by The Preston M. Green Department of Electrical and Systems Engineering in the McKelvey School of Engineering. Many thanks to my advisor and committee for the nomination!
![](https://sites.wustl.edu/junyizhao/files/2024/06/washu_electrical__systems_engineering_logo.jpeg)
Mar 25, 2024 | Award! Junyi is selected to the 2024 CAS Future Leaders Program. A total of 35 exceptional early-career scientists were selected from a large pool of global candidates known as one of the best leadership learning experiences in the world of science. The 2024 selectees are a diverse group, hailing from 13 countries, working at 33 graduate or post-doctoral programs. CAS News Release; CAS Website; C&EN News; Twitter;
![](https://sites.wustl.edu/junyizhao/files/2024/04/cas-future-leaders-beb5afc9ba80ff07-1024x823.png)
Mar 19, 2024 | Award! Junyi is awarded the POLY Excellence in Graduate Polymer Research 2024 by the American Chemical Society (ACS) at the ACS 2024 Spring Meeting in New Orleans, LA, while giving an invited talk!
![](https://sites.wustl.edu/junyizhao/files/2024/03/1708968484187-204f1f4124aab67a.jpeg)
Feb 29, 2024 | Junyi is selected to the MSE Future Leaders Program hosted by Northwestern University Materials Research Science and Engineering Center (MRSEC).
![](https://sites.wustl.edu/junyizhao/files/2024/02/NWU-6c093cf5012e7bfd-1024x278.png)
Jan 11, 2024 | HEC-TV. Media released the News Article & Interview Video of Junyi’s latest research progress on versatile manufacturing of perovskite optoelectronics, entitled “Engineering New Ink for Ballpoint Pens to Write Custom LEDs on Any Surface for High-Tech Advantages” News, Video.
Dec 22, 2023 | Award! Junyi has been presented with the prestigious NanoResearch Energy (NRE) Young Star Researcher Gold Award 2023, in recognition of outstanding research achievement in nanomaterials and nanotechnology for energy.
Dec 01, 2023 | Junyi gave an oral presentation at the 2023 MRS Fall Meeting in Boston, MA, entitled “Intrinsically Flexible Multicolor Perovskite LEDs on Unconventional Substrates”.
![](https://sites.wustl.edu/junyizhao/files/2024/01/F23-Landing-Banner_2851d2aba-e689-4931-af36-f298728ca8c6-1fe5b72675eff471-350x69.jpg)
Nov 29, 2023 | Junyi gave an oral presentation at the 2023 MRS Fall Meeting in Boston, MA, entitled “Wearable E-Textile System for Exercise Physiology and Clinical Maternal Health”.
![](https://sites.wustl.edu/junyizhao/files/2024/01/F23-Landing-Banner_2851d2aba-e689-4931-af36-f298728ca8c6-0e58c082c5bd6b60-350x69.jpg)
Nov 20, 2023 | Award! Junyi gave an oral presentation at the 6th Interdisciplinary Research Symposium on Flexible Electronics Technology hosted by Tsinghua Univ., entitled “Intrinsically Flexible Multicolor Perovskite LEDs on Unconventional Substrates”.
Oct 31, 2023 | Junyi’s first-author paper “Handwriting Perovskite Optoelectronic Devices on Diverse Substrates” has been officially published in the November Issue of Nature Photonics! Paper link, News & Views by Nature Photonics, Research Highlights by Nature, Research News by Physics, WashU News & Events, News by Optica (OSA)
![](https://sites.wustl.edu/junyizhao/files/2023/08/IMG_7368-350x350.jpg)
Oct 16, 2023 | Junyi started working as a Research Scientist (intern) in Facebook Reality Labs (Meta Platforms, Inc.), focusing on developing soft wearable electronics for AR/VR/XR-enhanced Human-Computer Interactions (HCI).
![](https://sites.wustl.edu/junyizhao/files/2024/01/Meta-Logo-1024x576.png)
Oct 30, 2023 | Award! Junyi has been selected for the Excellence in Graduate Polymer Research Symposium by the American Chemical Society (ACS) Polymer Chemistry Division (POLY) and invited to give an oral presentation at the 2024 ACS Spring Meeting in New Orleans, a distinct honor and recognition in the polymer community.
![](https://sites.wustl.edu/junyizhao/files/2024/01/cropped-ACS-Logo-1-1024x344.png)
![](https://sites.wustl.edu/junyizhao/files/2024/01/POLY-d079faabc99256bf.png)
Aug 13-16, 2023 | Junyi attended the 5th IEEE International Flexible Electronics Technology Conference (IFETC) in San Jose, CA.
![](https://sites.wustl.edu/junyizhao/files/2023/12/small_IFETC_2023_Logo_86934698d5.jpg)
Aug 23, 2023 | Nature published a Research Highlight article reporting the work, entitled ” A rainbow of LEDs adorns object at the stroke of a pen”! Link
Aug 16, 2023 | Optics & Photonics News from Optica wrote a beautiful story reporting the work, entitled “Bright Idea? Write it with Perovskite”. Link
Aug 15, 2023 | Optics.org reported the work, entitled ” Perovskite LEDs produced by penmanship”. Link
Aug 10, 2023 | EurekAlert! from AAAS reported the work, entitled “Simple ballpoint pen can write custom LEDs” . Link
Aug 07, 2023 | WashU News released the reports and stories about the work, entitled “Perovskite light emitters and detectors with the stroke of a pen”. Link
Aug 07, 2023 | Junyi’s first-author research paper on handwriting perovskite optoelectronic devices was published online in Nature Photonics! Link
![](https://sites.wustl.edu/junyizhao/files/2023/08/IMG_7368-350x350.jpg)
April 13, 2023 | Junyi gave an oral talk at the 2023 MRS Spring Meeting in San Francisco, CA, entitled ” High-Speed Fabrication of Intrinsically Stretchable Perovskite Optoelectronic Devices on Ubiquitous Substrates Using Printing and Handwriting”
![](https://sites.wustl.edu/junyizhao/files/2023/08/s23-landing-bannerd3b43693c9d76e4e916fff0000759bd3-350x69.jpg)
April 04, 2023 | Award! Junyi won the 28th Annual WashU Graduate Research Symposium (2nd place in Engineering). Link
Nov 30, 2022| Award! Junyi won the Best Presentation Award (awarded by the Institute of Physics (IOP) for Symposium SB10 at the 2022 MRS Fall Meeting).
Nov 30, 2022 | Junyi gave an oral talk at 2022 MRS Fall Meeting in Boston, MA, entitled “Direct Handwriting of All-Solution-processed and Intriscially Flexible Multicolor Perovskite Light-Emitting Diodes and Photodetectors on Textiles and Papers”
Nov 28, 2022 | Junyi gave a poster presentation at the 2022 MRS Fall Meeting in Boston, MA, entitled ” Ultra-fast and On-Demand Fabrication of Multicolor Light-Emitting Diodes and Photodetectors with Perovskite/Polymer OCmposite Photoactive Layers on Paper and Textile Substrates”
![](https://sites.wustl.edu/junyizhao/files/2023/08/f22-landing-banner-1400x275-1-350x69.jpg)
Jul 21, 2022 | Junyi’s co-author research paper on wearable sensors for electrophysiology monitoring was published in ACS Nano. Link
![](https://sites.wustl.edu/junyizhao/files/2023/08/title-350x78.png)
Feb 14, 2022 | Junyi’s co-author research paper on soft multimodal sensors was published in ACS Applied Materials & Interfaces. Link
![](https://sites.wustl.edu/junyizhao/files/2023/08/Logo_of_ACS_Applied_Materials__Interfaces.svg-350x80.png)
Dec 02, 2021 | Junyi’s first-author research paper on fully inkjet-printed and intrinsically flexible perovskite LEDs was published in Advanced Materials! Link
![](https://sites.wustl.edu/junyizhao/files/2023/08/AdvMater-350x94.png)
Nov 30, 2021 | Junyi gave a poster presentation at the 2021 MRS Fall Meeting in Boston, MA, entitled “Direct Handwriting of high-Performance perovskite/Polymer Composite-Based Optoelectronic Devices on Paer, Textile and Other Unconventional Substrates”
![](https://sites.wustl.edu/junyizhao/files/2023/08/F21-Landing-Banner-1400x275-Update-1-350x69.jpg)
Sep 02, 2021 | Junyi’s co-author research paper on the multimodal artificial neurological sensory-memory system based on flexible carbon nanotube synaptic transistor was published in ACS Nano. Link
![](https://sites.wustl.edu/junyizhao/files/2023/08/title-350x78.png)
April 29, 2021 | Junyi’s co-author research paper on inkjet-printed stretchable PEDOT:PSS conductor for wearable health monitoring applications was published in ACS Applied Materials & Interfaces. Link
![](https://sites.wustl.edu/junyizhao/files/2023/08/Logo_of_ACS_Applied_Materials__Interfaces.svg-350x80.png)
April 21, 2021 | Junyi gave a virtual oral presentation at the 2021 MRS Spring Meeting in Seattle, WA, entitled ” All-solution Processed, Fully Inkjet-Printed Organometal Halide Perovskite Light-Emitting Diodes on Flexible Substrates”
![](https://sites.wustl.edu/junyizhao/files/2023/08/s21-landing-banner-1400x275-1-350x69.jpg)
July 17, 2020 | Junyi’s co-author research paper on flexible CNT synaptic transistors for neurological E-skin applications was published in ACS Nano. Link
![](https://sites.wustl.edu/junyizhao/files/2023/08/title-350x78.png)