Zinc Oxide Nanoparticle Photodetector. (28th May 2012)

• Record Type: Journal Article
• Authors: Chang, Sheng-Po; Chen, Kuan-Jen
• Other Names: Hu Michael Academic Editor.
• Is Part Of: Journal of nanomaterials. Volume 2012(2012)
• Publication Date: 2012-05-28
• Subjects: Nanostructured materials -- Periodicals; Nanotechnology -- Periodicals; Nanomatériaux; Nanostructured materials; Nanotechnology; Nanostructures; Nanotechnology; Periodicals; Fulltext; Internet Resources; Periodicals; 620.115
• DOI: 10.1155/2012/602398
• Languages: English
• ISSNs: 1687-4110

Abstract

Abstract : A zinc oxide (ZnO) nanoparticle photodetector was fabricated using a simple method. Under a 5 V applied bias, its dark current and photocurrent were1.98 × 10 - 8 and9.42 × 10 - 7 A, respectively. In other words, a photocurrent-to-dark-current contrast ratio of 48 was obtained. Under incident light at a wavelength of 375 nm and a 5 V applied bias, the detector's measured responsivity was 3.75 A/W. The transient time constants measured during the turn-ON and turn-OFF states wereτ ON = 204 s andτ OFF = 486 s, respectively.