Personal profile
About Me
Yossef Efraim Panfil believes we are at the beginning of a quantum revolution which will change our lives dramatically—potentially solving problems of climate change, disease, food insecurity, and more using computational power.
His PhD research at Hebrew University’s Institute of Chemistry & the Center for Nanoscience and Nanotechnology used a new approach to fabricating semiconductor quantum dot molecules, a topic at the frontier of nano- and quantum technologies. Using his expertise in both chemistry and semiconductor photo-physics, he essentially extended the concept of quantum dots as “artificial atoms” to coupled dots as “artificial molecules.”
Along the way, he co-founded a startup that develops a new family of quantum materials for more efficient and higher resolution LCD displays that also conserve battery life. He applied for a patent for this technology.
In the Quantum Engineering Laboratory, part of the Department of Electrical & Systems Engineering at the University of Pennsylvania, Dr. Panfil explores colloidal QD’s defects and atomically thin two-dimensional (2D) materials as a light source for quantum information networks. The high brightness of these materials and their ability to operate at room temperature could help accelerate the pace toward arrays of on-chip single-photon sources that could be integrated with a wide range of electronic and photonic platforms.
As an ultra-Orthodox (Haredi) physicist, Dr. Panfil volunteered with Beliba Homa (A Wall in Its Midst), an organization that aims to break down barriers between the Haredi and non-Haredi public in Israel, assisting Haredi students in academic by matching them with secular, traditional and religious students.
Research:
- Quantum materials for quantum sensing, quantum communication, and quantum computation
- Synthesis and characterization of novel colloidal quantum dots and semiconductor nanocrystals
- Optically active spin defects in nanomaterials for quantum applications
- Single-emitter photoluminescence spectroscopy
- Single-photon sources based on semiconductor nanostructures
- ODMR spectroscopy and quantum optics
- Carrier dynamics and exciton–spin interactions in semiconductor quantum dots
- Nanocrystal superstructures and collective quantum phenomena in coupled systems
Research
- Fields of Interest
- Quantum materials
- quantum sensing
- quantum communication
- quantum computation
- colloidal quantum dots
- semiconductor nanocrystals
- Optically active spin defects in nanomaterials
- Single-emitter photoluminescence spectroscopy
- Single-photon sources
- ODMR spectroscopy
- quantum optics
- exciton–spin interactions in semiconductor quantum dots
- Nanocrystal superstructures
- תחומי מחקר
- חומרים קוונטיים לחישה קוונטית, תקשורת קוונטית וחישוב קוונטי
- סינתזה ואפיון של נקודות קוונטיות קולואידיות וננו־גבישים מוליכים למחצה חדשניים
- פגמים ספיניים פעילים אופטית בחומרים ננומטריים ליישומים קוונטיים
- ספקטרוסקופיית פוטולומיניסנציה של פולטנים יחידנים
- מקורות לפוטון בודד המבוססים על ננו־מבנים מוליכי למחצה
- ספקטרוסקופיית תהודה מגנטית ואופטיקה קוונטית
- דינמיקת נושאי מטען ואינטראקציות אקסיטון–ספין בנקודות קוונטיות מוליכות למחצה
- מבני־על של ננו־גבישים ותופעות קוונטיות קולקטיביות במערכות מצומדות
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 13 Climate Action
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Collaborations and top research areas from the last five years
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Room-Temperature Quantum Emission from CuZn-VS Defects in ZnS:Cu Colloidal Nanocrystals
Panfil, Y. E., Thompson, S. M., Chen, G., Ng, J. J., Kagan, C. R. & Bassett, L. C., 17 Jun 2025, In: ACS Nano. 19, 23, p. 21400-21410 11 p.Research output: Contribution to journal › Article › peer-review
2 Scopus citations -
Mechanisms for electric field induced color change in coupled colloidal quantum dot molecules revealed by low temperatures single particle spectroscopy
Panfil, Y. E., Levi, A., Koley, S., Scharf, E., Ossia, Y. & Banin, U., Dec 2024, In: Nano Research. 17, 12, p. 10346-10354 9 p.Research output: Contribution to journal › Article › peer-review
2 Scopus citations -
Electric-field-induced colour switching in colloidal quantum dot molecules at room temperature
Ossia, Y., Levi, A., Panfil, Y. E., Koley, S., Scharf, E., Chefetz, N., Remennik, S., Vakahi, A. & Banin, U., Oct 2023, In: Nature Materials. 22, 10, p. 1210-1217 8 p.Research output: Contribution to journal › Article › peer-review
31 Scopus citations -
Two Biexciton Types Coexisting in Coupled Quantum Dot Molecules
Frenkel, N., Scharf, E., Lubin, G., Levi, A., Panfil, Y. E., Ossia, Y., Planelles, J., Climente, J. I., Banin, U. & Oron, D., 8 Aug 2023, In: ACS Nano. 17, 15, p. 14990-15000 11 p.Research output: Contribution to journal › Article › peer-review
Open Access15 Scopus citations -
Complete Mapping of Interacting Charging States in Single Coupled Colloidal Quantum Dot Molecules
Panfil, Y. E., Cui, J., Koley, S. & Banin, U., 26 Apr 2022, In: ACS Nano. 16, 4, p. 5566-5576 11 p.Research output: Contribution to journal › Article › peer-review
Open Access14 Scopus citations