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Title: Quantum-State Renormalization in Semiconductor Nanoparticles
A single photoexcited electron−hole pair within a polar semiconductor nanocrystal (SNC) alters the charge screening and shielding within it. Perturbations of the crystal lattice and of the valence and conduction bands result, and the quantum-confinement states in a SNC shift uniquely with a dependence on the states occupied by the carriers. This shifting is termed quantum-state renormalization (QSR). This Perspective highlights QSR in semiconductor quantum wires and dots identified in time-resolved transient absorption and two-dimensional electronic spectroscopy experiments. Beyond the interest in understanding the principles of QSR and energy-coupling mechanisms, we pose the contributions of QSR in time-resolved spectroscopy data must be accounted for to accurately identify the time scales for intraband relaxation of the carriers within SNCs.  more » « less
Award ID(s):
1905751
PAR ID:
10653510
Author(s) / Creator(s):
; ; ;
Publisher / Repository:
American Chemical Society
Date Published:
Journal Name:
ACS Nano
Volume:
18
Issue:
52
ISSN:
1936-0851
Page Range / eLocation ID:
35104 to 35118
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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