Significant energy relaxation of quantum dot emitted hot electrons

• Published in: Physical review research Vol. 3; no. 3; p. 033015
• Main Authors: Park, Dongsung T., Kim, Uhjin, Kim, Dongkun, Jung, Hwanchul, Choi, Juho, Han, Cheolhee, Chung, Yunchul, Sim, H.-S., Umansky, V., Choi, Hyoungsoon, Choi, Hyung Kook
• Format: Journal Article
• Language: English
• Published: American Physical Society 01.07.2021

Mesoscopic quantum dots (QDs) are ubiquitous in quantum devices as reliable sources of hot electrons. However, we have observed an unexpectedly significant energy relaxation of QD-emitted hot electrons up to ≈55% of its excitation ≤1.5meV from the Fermi level. The energetics of hot electrons were ob...