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Achieving self-powered photoresponse in mono layered SnO2 nanostructure array UV photodetector through the tailoring of electrode configuration by G. Marimuthu; K. Saravanakumar; K. Jeyadheepan; K. Mahalakshmi is a Materials Science article available to read on EtoBox.

What is Achieving self-powered photoresponse in mono layered SnO2 nanostructure array UV photodetector through the tailoring of electrode configuration about?

Photodetectors (PDs) are getting attention due to their various applications of environmental sensing, fast detection of biochemical reactions, and flame monitoring, etc. In this work, self-powered photoresponse was attained by controlling the surface states of tin oxide (SnO 2 ) nanostructure arrays. The surface states were controlled by varying electrode configurations (ECs) and active areas. The Structural refinement (Rietveld) was carried out to quantify the SnO 2 phase using XRD data. The optical, surface morphology, and elemental compositional analysis were characterized by TRPL, FESEM and HRTEM, and XPS, respectively. The characteristics of PD device were performed under UV light (365 nm). The self-powered performance was achieved for gride-type EC which attributed that due to different thickness of the electrodes thereby electric potential form across the electrodes. The transient photoresponse curves were measured for different bias voltages for all the ECs to achieve the photoresponse at zero bias, and eventually zero bias photoresponse was achieved. Under dark condition, negative sign current of -1.68 × 10 -11 A was showed, whereas it reached positive sign photocurrent o

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Author

G. Marimuthu; K. Saravanakumar; K. Jeyadheepan; K. Mahalakshmi

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Materials Science (Physical Sciences)