Wavefunction Mapping of Immobilized InP Semiconductor Nanocrystals
Source abstract
Abstract
On the map: The electronic structure of InP nanocrystals (NCs) is studied and the symmetry of the squared wavefunctions (WFs) corresponding to the confined states in the spectral density is mapped directly (see picture). The WF maps show s- and p-type character and charging energies that decrease when higher orbitals are occupied. Coupling of the NCs with the environment influences the WF energies and symmetries.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Quantum Dots Synthesis And Properties · Nanowire Synthesis and Applications · Semiconductor Quantum Structures and Devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (39)
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1. 10.1038/3504600010.1038/35046000 ↗
2. 10.1039/b311929g10.1039/b311929g ↗
3. 10.1126/science.271.5251.93310.1126/science.271.5251.933 ↗
4. Maruccio G.
5. 10.1063/1.44721810.1063/1.447218 ↗
6. 10.1021/jp970473110.1021/jp9704731 ↗
7. 10.1103/PhysRevLett.97.09680310.1103/PhysRevLett.97.096803 ↗
8. 10.1103/PhysRevLett.95.08680110.1103/PhysRevLett.95.086801 ↗
9. 10.1038/2297910.1038/22979 ↗
10. 10.1103/PhysRevLett.86.575110.1103/PhysRevLett.86.5751 ↗
11. 10.1063/1.135269810.1063/1.1352698 ↗
12. 10.1021/jp002150210.1021/jp0021502 ↗
13. 10.1021/jp981703u10.1021/jp981703u ↗
14. 10.1126/science.108442410.1126/science.1084424 ↗
15. 10.1126/science.111670310.1126/science.1116703 ↗
16. 10.1021/ja053119m10.1021/ja053119m ↗
17. 10.1103/PhysRevLett.91.19680410.1103/PhysRevLett.91.196804 ↗
18. 10.1103/PhysRevLett.85.106810.1103/PhysRevLett.85.1068 ↗
19. 10.1021/nl071133m10.1021/nl071133m ↗
20. 10.1126/science.283.5398.5210.1126/science.283.5398.52 ↗
21. 10.1038/3508801310.1038/35088013 ↗
22. 10.1103/PhysRevLett.94.02680310.1103/PhysRevLett.94.026803 ↗
23. 10.1103/PhysRevLett.90.09680210.1103/PhysRevLett.90.096802 ↗
24. 10.1103/PhysRevLett.92.05680310.1103/PhysRevLett.92.056803 ↗
25. 10.1103/PhysRevB.58.1622110.1103/PhysRevB.58.16221 ↗
26. 10.1063/1.200490110.1063/1.2004901 ↗
27. 10.1063/1.114803110.1063/1.1148031 ↗
28. 10.1103/PhysRevB.31.80510.1103/PhysRevB.31.805 ↗
29. 10.1039/b605436f10.1039/b605436f ↗
30. The tunneling rate through the Au substrate is much larger than the typical tunneling rate from the tip to the NC thus different stabilization currentsIstab(corresponding to different tip–dot distances) can be used to switch from one regime to the other. Smaller distances (i.e higher currents keeping a fixed voltage) correspond to gradually increasing tunneling rates into the NC which at some stage starts to become charged.
31. 10.1021/la001139q10.1021/la001139q ↗
32. 10.1021/la990622210.1021/la9906222 ↗
33. 10.1021/jp970179910.1021/jp9701799 ↗
34. Prolonged dosing leads to a phase transition from a striped phase to the standing‐up phase whereas lower thiol coverage (obtained by partial reductive desorption at 0.3 V or annealing) results in thiols lying flat on the gold surface (see Ref. [21]).
35. 10.1103/PhysRevLett.85.195810.1103/PhysRevLett.85.1958 ↗
36. WF mapping was not possible before annealing since the NCs were not stable enough on the substrate.
37. 10.1088/0034-4885/64/6/20110.1088/0034-4885/64/6/201 ↗
38. A WF mapping experiment typically takes more than 10 h and it is essential to avoid any accidental contact between the STM tip and the sample.
39. 10.1103/PhysRevB.71.04531810.1103/PhysRevB.71.045318 ↗