Related Experiment Video
Updated: Feb 6, 2026

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
Published on: June 3, 2015
Enhancement of Switching Characteristic for p-Type Oxide Semiconductors Using Hypochlorous Acid
Tae Soo Jung1, Heesoo Lee1, Sung Pyo Park1
1School of Electrical and Electronic Engineering , Yonsei University , 50 Yonsei-ro, Seodaemun-gu , Seoul 03722 , Republic of Korea.
Abstract:
We explored the effects of hypochlorous acid (HClO) oxidation on p-type oxide semiconductors. HClO generates oxygen radicals (O·) (strong reactive oxygen species) that affect the chemical state of p-type copper oxide (CuO x) thin films by reacting with CuO x. On robust oxidation by HClO, the numbers of Cu-O bonds increased and the numbers of copper vacancies serving as hole carriers decreased. In the modified CuO x thin-film transistors (TFTs), switching was evident. The subthreshold swing was 0.70 V/dec, the on-/off-current ratio was 4.86 × 104, and the field effect mobility was 2.83 × 10-3 cm2/V·s. Pristine CuO x TFTs did not exhibit switching.
Related Concept Videos
Types of Semiconductors
Semiconductors
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
Alkynes to Carboxylic Acids: Oxidative Cleavage
Oxidations of Aldehydes and Ketones to Carboxylic Acids
Aldehydes readily undergo oxidation in strong oxidizing agents such as potassium permanganate and chromic acid. The oxidation can also be carried out using mild oxidizing agents such as silver oxide. In fact, aldehydes can be easily oxidized...
Switching of BJT
Cut-off Mode ("Off" State): In this state, both the emitter-base and collector-base junctions are...
Oxidation of Alkenes: Anti Dihydroxylation with Peroxy Acids

