Sanjay Banerjee
· ProfessorUniversity of Texas at Austin · Electrical and Computer Engineering
Active 1984–2024
About
Professor Sanjay K. Banerjee is the Cockrell Family Regents Chair #4 in the Department of Electrical and Computer Engineering at the University of Texas at Austin. His research focuses on electronics with layered materials, van der Waals semiconductors, topological insulators, Si/Ge and III-V electronics, photovoltaics, and emerging memory technologies. As the principal investigator of BanerjeeLab, he leads efforts in exploring advanced materials and device physics, contributing to the development of novel electronic and photonic devices. He has a distinguished academic and research background, with a significant role in mentoring graduate students and postdoctoral researchers. His lab has produced numerous alumni who have advanced to prominent positions in industry and academia. Prof. Banerjee's work is characterized by a deep engagement with materials science, device fabrication, and quantum transport phenomena, aiming to push the boundaries of electronic device performance and functionality.
Research topics
- Optoelectronics
- Nanotechnology
- Materials science
- Composite material
- Computer Science
- Chemical engineering
- Chemical physics
- Physics
- Chemistry
- Inorganic chemistry
- Condensed matter physics
- Physical chemistry
- Engineering physics
- Engineering
- Electronic engineering
Selected publications
Application of Perovskite Quantum Dots as an Absorber in Perovskite Solar Cells
Angewandte Chemie International Edition · 2021 · 101 citations
Senior authorCorresponding- Materials science
- Optoelectronics
- Nanotechnology
Perovskite quantum dots (QDs) preserve the attractive properties of perovskite bulk materials and present additional advantages, owing to their quantum confinement effect, leading to their suitability as an absorber in perovskite solar cells. In this Review, the issues and advantages of perovskite QDs are analyzed in the context of purification, device fabrication with perovskite QDs, light absorption, charge transport, and stability. In addition, promising strategies to enhance perovskite QDs and QD-based solar cells are elucidated based on exchange chemistry (ion and ligand exchange), passivation engineering (ion and ligand passivation), and structure engineering (conventional/inverted, planar/mesoscopic and dimensionally graded structures). These discussions will give a clue to the further development of perovskite QDs and thus the advancement of QD-based solar cells.
Stability Improvement of Perovskite Solar Cells by Compositional and Interfacial Engineering
Chemistry of Materials · 2021 · 125 citations
Senior authorCorresponding- Computer Science
- Materials science
- Chemical engineering
Solar cells based on metal halide perovskites continue to approach their theoretical efficiency limits thanks to worldwide research efforts. The next challenge is to develop perovskite devices that can retain these efficiencies but exhibit acceptable degradation and decent stability for real-life practical applications. The degradation can be triggered and significantly affected by external environmental factors, such as moisture, oxygen, light, and heat. Although the encapsulation allows effective suppression of moisture- and oxygen-induced degradation, the reduction of light degradation and heat degradation is primarily dependent on the improvement of materials and interfaces of cells. Herein, the degradation mechanisms caused by light and heat are elucidated for each of the major layers in the device. The methodologies for the corresponding degradation reduction and stability enhancement are interpreted from compositional and interfacial engineering strategies with quantitative analysis including the site-based substitution in perovskite lattice, doping in charge transporting layers, passivation by using various materials (small molecules, polymers, ligands, perovskite quantum dots, and low-dimensional perovskites), and a protective layer for vulnerable layers. This Review will provide important insight into degradation suppression and stability enhancement of perovskite solar cells and give a clue to optimal design toward high-efficiency and stable devices.
Advanced Materials · 2020 · 140 citations
- Materials science
- Nanotechnology
- Condensed matter physics
), and an atomically thin insulator (h-BN). These results indicate the universality of the phenomenon in 2D non-conductive materials, and feature low switching voltage, large ON/OFF ratio, and forming-free characteristic. A dissociation-diffusion-adsorption model is proposed, attributing the enhanced conductance to metal atoms/ions adsorption into intrinsic vacancies, a conductive-point mechanism supported by first-principle calculations and scanning tunneling microscopy characterizations. The results motivate further research in the understanding and applications of defects in 2D materials.
Recent grants
NNCI: Texas Nanofabrication Facility (TNF)
NSF · $4.5M · 2015–2021
NNCI: Texas Nanofabrication Facility (TNF)
NSF · $5.0M · 2020–2025
NSF · $1.3M · 2003–2008
Frequent coauthors
- 131 shared
Leonard F. Register
The University of Texas at Austin
- 95 shared
Emanuel Tutuc
The University of Texas at Austin
- 58 shared
Davood Shahrjerdi
New York University
- 53 shared
Anupam Roy
Birla Institute of Technology, Mesra
- 52 shared
A.F. Tasch
The University of Texas at Austin
- 47 shared
Amritesh Rai
- 45 shared
Hema C. P. Movva
The University of Texas at Austin
- 44 shared
L. Mathew
Labs
Awards & honors
- Engineering Foundation Advisory Council Halliburton Award (1…
- Texas Atomic Energy Fellowship (1990-1997)
- Cullen Professorship (1997-2001)
- Hocott Research Award from UT Austin (2007)
- SIA/SRC University Researcher Award (2017)
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