Longji Cui

  • Assistant Professor
  • Thermo Fluid Sciences, Materials, Micro/Nanoscale
Address

Office Location: ECOT 232
Lab Location: ECME 1B66F

Research Interests

Atomic, Molecular and Quantum Energy Transport and Conversion, Ultrahigh Precision Sensing, Scanning Probe Microscopy, Thermal Radiation and Nano-optics

Dr. Cui's research group focuses on the development of nanostructure- and nanoengineering-based tools and techniques capable of resolving energy transfer, conversion, and dissipation processes to the scale of single atoms and single molecules. These techniques are leveraged to provide fundamental understandings of properties and performance of nanoscale thermal, electrical and optical devices. His research has covered the topics include picowatt-resolution thermal sensors, quantum transport at the single-atom and single-molecule scale, molecular thermoelectrics, near-field thermal radiation, and nano-optics.

Societal Impact

By inventing thermal microscope and sensors capable of resolving atomic and molecular details of energy flow and conversion, Dr. Cui鈥檚 research helps to address the challenges ranging from the thermal management of high power electronics, cheap and clean energy with high efficiency, to conductive yet lightweight thermal materials for aerospace and wearable applications.

Select Publications

  • L. Cui, Y. Zhu, M. Abbasi, A. Ahmadivand, B. Gerislioglu, P. Nordlander, D. Natelson, "Electrically driven hot-carrier generation and above-threshold light emission in plasmonic tunnel junctions", Nano Letters (2020).
  • L. Cui, S. Hur, Z. A. Akbar, J. C. Klo虉ckner, W. Jeong, F. Pauly, S.-Y. Jang, P. Reddy, E. Meyhofer, 鈥淭hermal conductance of single-molecule junctions鈥, Nature  572, 628鈥633 (2019). 
  • L. Cui, R. Miao, K. Wang, D. Thompson, L. A. Zotti, J. C. Cuevas, E. Meyhofer, P. Reddy, 鈥淧eltier cooling in molecular junctions鈥, Nature Nanotechnology 13, 122-127 (2018). (Cover paper)
  • L. Cui, W. Jeong, S. Hur, M. Matt, J. C. Kl枚ckner, F. Pauly, P. Nielaba, J. C. Cuevas, E. Meyhofer, P. Reddy, 鈥淨uantized thermal transport in single atom junctions鈥, Science, 355, 1192 (2017).
  • L. Cui, W. Jeong, V. Fern谩ndez-Hurtado, J. Feist, F. J. Garc铆a-Vidal, J. C. Cuevas, E. Meyhofer, P. Reddy, 鈥淪tudy of radiative heat transfer at 脜ngstr枚m and nanometer-scale gaps鈥, Nature Communications, 8, 14479 (2017).