Unknown

Dataset Information

0

Investigation of Photoexcited Carrier Dynamics in Hematite and the Effect of Surface Modifications by an Advanced Transient Grating Technique.


ABSTRACT: Photoexcited carrier dynamics in a hematite film with and without amorphous NiFeO x on the surface was investigated using the heterodyne transient grating method. We found that two different electron/hole dynamics took place in the micro- and millisecond time regions and successfully assigned each component to the decay processes of electrons and holes trapped at surface states, respectively. It was also demonstrated that the amorphous NiFeO x coating plays a crucial role in increasing the survival of the holes at the surface trap states, which was caused by the decrease in the surface recombination rate.

SUBMITTER: Sohn WY 

PROVIDER: S-EPMC6640961 | biostudies-literature |

REPOSITORIES: biostudies-literature

Similar Datasets

| S-EPMC6645113 | biostudies-literature
| S-EPMC9125685 | biostudies-literature
| S-EPMC4210134 | biostudies-literature
| PRJNA877417 | ENA
| S-EPMC6773752 | biostudies-literature
| S-EPMC7699437 | biostudies-literature
| S-EPMC5388900 | biostudies-literature
| S-EPMC7921141 | biostudies-literature
| S-EPMC6437156 | biostudies-literature
| S-EPMC7188898 | biostudies-literature