scholarly journals Fermi-level pinning in methylammonium lead iodide perovskites

Nanoscale ◽  
2019 ◽  
Vol 11 (36) ◽  
pp. 16828-16836 ◽  
Author(s):  
Thibaut Gallet ◽  
David Grabowski ◽  
Thomas Kirchartz ◽  
Alex Redinger
Keyword(s):  
Fermi Level ◽  
Surface State ◽  
State Density ◽  
Scanning Tunnelling Microscopy ◽  
Lead Iodide ◽  
Surface State Density ◽  
Fermi Level Pinning ◽  
Scanning Tunnelling ◽  
Tunnelling Microscopy ◽  
Methylammonium Lead Iodide

Scanning tunnelling microscopy measurements reveal grain dependent changes in surface state density and workfunctions on polycrystalline CH3NH3PbI3 absorbers.

Strong surface Fermi level pinning and surface state density in GaAs0.65Sb0.35 surface intrinsic-n+ structure

2009 ◽  
Vol 95 (14) ◽  
pp. 141914 ◽  
Author(s):  
K. I. Lin ◽  
H. C. Lin ◽  
J. T. Tsai ◽  
C. S. Cheng ◽  
Y. T. Lu ◽  
...  
Keyword(s):  
Fermi Level ◽  
Surface State ◽  
State Density ◽  
Surface State Density ◽  
Fermi Level Pinning ◽  
Strong Surface ◽  
Surface Fermi Level

GaAsSb bandgap, surface fermi level, and surface state density studied by photoreflectance modulation spectroscopy

2012 ◽  
Vol 100 (22) ◽  
pp. 222104 ◽  
Author(s):  
J. S. Hwang ◽  
J. T. Tsai ◽  
I. C. Su ◽  
H. C. Lin ◽  
Y. T. Lu ◽  
...  
Keyword(s):  
Fermi Level ◽  
Surface State ◽  
State Density ◽  
Modulation Spectroscopy ◽  
Surface State Density ◽  
Surface Fermi Level

Insights into electrocatalysis by scanning tunnelling microscopy

2021 ◽  
Author(s):  
Xiang Wang ◽  
Yu-Qi Wang ◽  
Ya-Chen Feng ◽  
Dong Wang ◽  
Li-Jun Wan
Keyword(s):  
Scanning Tunnelling Microscopy ◽  
Surface Processes ◽  
Scanning Tunnelling ◽  
Tunnelling Microscopy ◽  
Electrocatalytic Reactions

This review summarizes the applications of scanning tunnelling microscopy in electrocatalysis, including the investigation of the electrocatalyst structures and the surface processes related to electrocatalytic reactions.

scholarly journals Investigation of single-domain Au silicide nanowires on Si(110) formed for Au coverages in the monolayer regime

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Stephan Appelfeller
Keyword(s):  
Fermi Level ◽  
Surface Structure ◽  
Density Of States ◽  
The Self ◽  
Single Domain ◽  
Photoemission Spectroscopy ◽  
Annealing Temperatures ◽  
Self Organized ◽  
Scanning Tunnelling ◽  
Tunnelling Microscopy

AbstractThe self-organized formation of single domain Au silicide nanowires is observed on Si(110). These nanowires are analysed using scanning tunnelling microscopy (STM) and spectroscopy (STS) as well as photoemission spectroscopy (PES). Core-level PES is utilised to confirm the formation of Au silicide and establish its presence as the top most surface structure, i.e., the nanowires. The growth of the Au silicide nanowires and their dimensions are studied by STM. They form for Au coverages of about 1 monolayer and are characterized by widths of about 2 to 3 nm and heights below 1 nm while reaching lengths exceeding 500 nm when choosing appropriate annealing temperatures. Valence band PES and STS indicate a small but finite density of states at the Fermi level typical for compound metals.

scholarly journals Scanning Tunnelling Microscopy of Suspended Graphene

2012 ◽  
Vol 371 ◽  
pp. 012070 ◽  
Author(s):  
R Zan ◽  
U Bangert ◽  
C Muryn ◽  
P Mattocks ◽  
B Hamilton ◽  
...  
Keyword(s):  
Scanning Tunnelling Microscopy ◽  
Suspended Graphene ◽  
Scanning Tunnelling ◽  
Tunnelling Microscopy

Defect Structure of Ultrathin Ceria Films on Pt(111): Atomic Views from Scanning Tunnelling Microscopy

2010 ◽  
Vol 114 (40) ◽  
pp. 17036-17041 ◽  
Author(s):  
David C. Grinter ◽  
Roslinda Ithnin ◽  
Chi L. Pang ◽  
Geoff Thornton
Keyword(s):  
Defect Structure ◽  
Scanning Tunnelling Microscopy ◽  
Scanning Tunnelling ◽  
Tunnelling Microscopy
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