space charge region

https://doi.org/10.1351/goldbook.14089
Region formed within a semiconductor in contact with another phase in which there is a band bending that can be upward or downward.
Source:
PAC, 2011, 83, 931. (Glossary of terms used in photocatalysis and radiation catalysis (IUPAC Recommendations 2011)) on page 989 [Terms] [Paper]