Purdue researchers identify role of quantum interference in energy transport

Researchers, led by physical chemistry professor Libai Huang, have identified the critical role that quantum interference plays in chemical processes like photosynthesis and transporting energy in solar cells. The team published its findings in Nature Chemistry over the summer.

Article Title

Exciton annihilation in molecular aggregates suppressed through quantum interference 

Author(s)

Shibin Deng, postdoctoral researcher, Chemistry

Ian S. Dunn, PhD candidate, Chemical Physics (Columbia University)

Libai Huang, professor, Physical Chemistry

Sarath Kumar, graduate research assistant, Physical Chemistry

Roel Tempelaar, assistant professor, Chemistry (Northwestern University)

Olivia Williams, postdoctoral researcher, Chemistry

Qiuchen Zhao, postdoctoral researcher, Chemistry

Tong Zhu, postdoctoral researcher, Mechanical Engineering (Beijing Institute of Technology)

Journal

Nature Chemistry, 2023

Full Article

Article Summary

Purdue researchers from Chemistry have identified that quantum interference plays a critical role in chemical processes that hold the key to the efficiency of energy transport in photosynthesis and solar cells. Contrary to prior belief, the findings show that energy efficiency can be increased by exploiting different quantum phase relationships. The study suggests that devices with high densities and mobilities of excitons can be realized through detailed control of quantum phases through the packing motifs in which molecules crystallize, with applications in optoelectronics and quantum information science. It furthermore paves the way for advanced molecular material design by harnessing quantum interference as a principal ingredient.