Research Progress of p-Type Oxide Thin-Film Transistors

Materials (Basel). 2022 Jul 8;15(14):4781. doi: 10.3390/ma15144781.

Abstract

The development of transparent electronics has advanced metal-oxide-semiconductor Thin-Film transistor (TFT) technology. In the field of flat-panel displays, as basic units, TFTs play an important role in achieving high speed, brightness, and screen contrast ratio to display information by controlling liquid crystal pixel dots. Oxide TFTs have gradually replaced silicon-based TFTs owing to their field-effect mobility, stability, and responsiveness. In the market, n-type oxide TFTs have been widely used, and their preparation methods have been gradually refined; however, p-Type oxide TFTs with the same properties are difficult to obtain. Fabricating p-Type oxide TFTs with the same performance as n-type oxide TFTs can ensure more energy-efficient complementary electronics and better transparent display applications. This paper summarizes the basic understanding of the structure and performance of the p-Type oxide TFTs, expounding the research progress and challenges of oxide transistors. The microstructures of the three types of p-Type oxides and significant efforts to improve the performance of oxide TFTs are highlighted. Finally, the latest progress and prospects of oxide TFTs based on p-Type oxide semiconductors and other p-Type semiconductor electronic devices are discussed.

Keywords: cuprous oxide; nickel oxide; orbital hybrid; oxide Thin-Film transistors; preparation technology; tin oxide.

Publication types

  • Review

Grants and funding

We gratefully acknowledge the Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology (2020B1212060049) and Young Scholars Program of Shandong University, Weihai for their financial support. We also thank Physical-Chemical Materials Analytical & Testing Center of Shandong University at Weihai for their assistance with characterization.