scholarly journals Understanding the Role of Surface States on Mesoporous NiO Films

2020 ◽  
Vol 142 (43) ◽  
pp. 18668-18678
Author(s):  
Lei Tian ◽  
Robin Tyburski ◽  
Chenyu Wen ◽  
Rui Sun ◽  
Mohamed Abdellah ◽  
...  
Keyword(s):  
Surface States ◽  
Nio Films

scholarly journals Role of NiO in the nonlocal spin transport through thin NiO films on Y3Fe5O12

2021 ◽  
Vol 103 (14) ◽  
Author(s):  
Geert R. Hoogeboom ◽  
Geert-Jan N. Sint Nicolaas ◽  
Andreas Alexander ◽  
Olga Kuschel ◽  
Joachim Wollschläger ◽  
...  
Keyword(s):  
Spin Transport ◽  
Nio Films

Dominant role of surface states in photoexcited carrier dynamics in CdSe nanocrystalline films prepared by chemical deposition

2000 ◽  
Vol 77 (15) ◽  
pp. 2352-2354 ◽  
Author(s):  
P. Malý ◽  
J. Kudrna ◽  
F. Trojánek ◽  
D. Mikeš ◽  
P. Němec ◽  
...  
Keyword(s):  
Dominant Role ◽  
Chemical Deposition ◽  
Surface States ◽  
Carrier Dynamics ◽  
Nanocrystalline Films ◽  
Photoexcited Carrier

The Role of Surface States in the Oxygen Evolution Reaction on Hematite

2014 ◽  
Vol 126 (49) ◽  
pp. 13622-13626 ◽  
Author(s):  
Beniamino Iandolo ◽  
Anders Hellman
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Surface States

Influence of Electron-withdrawing Substituents on Photoelectrochemical Surface Phenomena at Phthalocyanine Thin Film Electrodes

1999 ◽  
Vol 03 (06) ◽  
pp. 444-452 ◽  
Author(s):  
TORSTEN OEKERMANN ◽  
DERCK SCHLETTWEIN ◽  
NILS I. JAEGER ◽  
DIETER WÖHRLE
Keyword(s):  
Charge Transfer ◽  
Steady State ◽  
Electrolyte Concentration ◽  
Surface States ◽  
Surface Phenomena ◽  
Time Resolved ◽  
Photogenerated Electrons ◽  
Millisecond Range ◽  
Electron Withdrawing Substituents

The influence of electron-withdrawing substituents on the photoelectrochemical properties of phthalocyanines is shown in a comparison between hexadecafluorophthalocyaninatozinc(II) ( F 16 PcZn ) and the unsubstituted phthalocyaninatozinc(II) ( PcZn ). The role of surface states in the photoelectrochemistry of both materials has been investigated by time-resolved photocurrent measurements in the millisecond range. The charging and discharging of surface states could clearly be seen as spikes at the beginning and the end of illumination. Surface states were filled with photogenerated electrons at PcZn and with photogenerated holes at F 16 PcZn . In the steady state under illumination only cathodic photocurrents were detected at PcZn , while at F 16 PcZn both cathodic and anodic photocurrents were observed. An adsorption step of electroactive species prior to the charge transfer was derived from the dependence of the steady state photocurrents on the electrolyte concentration for both materials. The concentration dependence of the charging and discharging currents, however, showed that charge transfer from surface states to the electrolyte occurs at PcZn , while at F 16 PcZn the surface states only represent recombination centres.

Sign in / Sign up

Export Citation Format

Share Document