Stark effect in colloidal indium arsenide nanocrystal quantum dots: Consequences for wave-function mapping experiments

2001/08/31 by Michael Tews, M. Tews, Daniela Pfannkuche
Chemistry · Materials Science · Physics and Astronomy · #Chemistry #Colloid #Condensed matter physics #Degenerate energy levels #Electric field #Field (mathematics) #Indium #Indium arsenide #Materials science #Nanocrystal #Nanotechnology #Optoelectronics #Physical chemistry #Physics #Quantum Dots Synthesis And Properties #Quantum dot #Quantum mechanics #Quantum tunnelling #Quantum-confined Stark effect #Semiconductor Quantum Structures and Devices #Spectroscopy #Spectroscopy and Quantum Chemical Studies #Stark effect #Substrate (aquarium) #Wave function #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.65.073307

4 pages, including 5 figures

arxiv created 2001/11/30 · openalex publication_date 2002/02/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The influence of the tip-substrate bias-induced electric field in a scanning-tunneling-spectroscopy experiment on colloidal InAs nanocrystals has been studied. Calculating the Stark-induced splitting of the degenerate 1P_e state perturbatively within a particle-in-a-sphere model, revealed a possible explanation of recently published experimental wave-function mapping data by Millo et al., Phys. Rev. Lett. 86, 5751 (2001).

Citations

• Interdot interactions and band gap changes in CdSe nanocrystal arrays at elevated pressure
• Imaging and Spectroscopy of Artificial-Atom States in Core/Shell Nanocrystal Quantum Dots