Negative threshold voltage shift in an a-IGZO thin film transistor under X-ray irradiation.

We investigated the effects of X-ray irradiation on the electrical characteristics of an amorphous In-Ga-Zn-O (a-IGZO) thin film transistor (TFT). The a-IGZO TFT showed a negative threshold voltage ( ) shift of -6.2 V after 100 Gy X-ray irradiation.

Photochemical Hydrogen Doping Induced Embedded Two-Dimensional Metallic Channel Formation in InGaZnO at Room Temperature.

The photochemical tunability of the charge-transport mechanism in metal-oxide semiconductors is of great interest since it may offer a facile but effective semiconductor-to-metal transition, which results from photochemically modified electronic structures for various oxide-based device applications. This might provide a feasible hydrogen (H)-radical doping to realize the effectively H-doped metal oxides, which has not been achieved by thermal and ion-implantation technique in a reliable and controllable way. In this study, we report a photochemical conversion of InGaZnO (IGZO) semiconductor to a transparent conductor via hydrogen doping to the local nanocrystallites formed at the IGZO/glass interface at room temperature.

Dual active layer a-IGZO TFT via homogeneous conductive layer formation by photochemical H-doping.

In this study, InGaZnO (IGZO) thin film transistors (TFTs) with a dual active layer (DAL) structure are fabricated by inserting a homogeneous embedded conductive layer (HECL) in an amorphous IGZO (a-IGZO) channel with the aim of enhancing the electrical characteristics of conventional bottom-gate-structure TFTs. A highly conductive HECL (carrier concentration at 1.6 × 10(13) cm(-2), resistivity at 4.

Improved PCR for identification of Pseudomonas aeruginosa.

The aim of the present study was to develop a noble and specific marker for a quantitative polymerase chain reaction (PCR) assay for the species-specific detection of Pseudomonas aeruginosa based on the O-antigen acetylase gene. It is an important challenge to characterize populations of the bacterium P. aeruginosa, an opportunist by virtue of its physiological and genetic adaptability.

Rapid and Specific Detection of Burkholderia glumae in Rice Seed by Real-Time Bio-PCR Using Species-Specific Primers Based on an rhs Family Gene.

In this study, we developed a reliable, quick, and accurate quantitative polymerase chain reaction (qPCR) assay to detect grain rot caused by Burkholderia glumae in rice seed. The control of bacterial grain rot is difficult, and the only practical methods for disease management rely on the use of pathogen-free seed, appropriate culture practices, and resistant cultivars. Therefore, the specific detection of this pathogen in seed is essential for effective control of the disease.

Quantitative Real-Time Polymerase Chain Reaction Assay for Detection of Pectobacterium wasabiae Using YD Repeat Protein Gene-Based Primers.

The aim of this study was to develop a quantitative polymerase chain reaction (qPCR) assay for specific detection of Pectobacterium wasabiae using a primer pair based on the YD repeat protein gene for amplification of a 140-bp DNA fragment from infected wasabi (Wasabia japonica), a member of the crucifer family. The soft rot caused by P. wasabiae is an emerging disease that is present in many wasabi-producing areas.

Identification and Characterization of Gliocladium viride Isolated from Mushroom Fly Infested Oak Log Beds Used for Shiitake Cultivation.

A green mold species that has not previously been reported in Korea was isolated from oak log beds used for shiitake (Lentinula edodes) cultivation that were infested by mushroom flies. In this study, we identify the mold species as Gliocladium viride (an anamorph of Hypocrea lutea) and describe its mycological properties. The fungus was cottony on both potato dextrose agar (PDA) and Czapek yeast extract agar (CYA), but was colored white on PDA and became yellowish green and brown on CYA.