2026Applied Physics Reviews

Ordered oxygen vacancies modulate hole transport and enhance the photoresponse in p-type SnO thin films

Yihao Wang, Peng Fu, Jinpeng Ji, Zongjie Shen, Lean Li, Chengying Liu, Junhao Lin, Alei Li, Fengxia Geng, Liyuan Zhang

Applied Physics Reviews · 13, 011406 (2026)

DOI 10.1063/5.0302019

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Introduction

Ordered oxygen vacancies are identified in thin p-type SnO flakes. The paper examines how these defects affect hole transport and reports room-temperature transistor operation and ultraviolet photoresponse.

A closer reading

Vacancy ordering, rather than vacancy presence alone, is the key distinction. Structural observations provide an independent basis for discussing defect effects that an enhanced detector signal by itself cannot establish.