Enhanced Photoresponse of a Self-Powered Gallium Nitride Photodetector via Sequentially-Deposited Gold Nanoparticles for Sustainable Optoelectronics

Teker T. U., TEKER K.

Journal of Electronic Materials, vol.52, no.4, pp.2372-2379, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 52 Issue: 4
  • Publication Date: 2023
  • Doi Number: 10.1007/s11664-022-10176-x
  • Journal Name: Journal of Electronic Materials
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Applied Science & Technology Source, Chemical Abstracts Core, Chimica, Compendex, Computer & Applied Sciences, INSPEC
  • Page Numbers: pp.2372-2379
  • Keywords: Self-powered photodetectors, GaN-UVPD, Au nanoparticles, plasmonics, sustainable energy, PERFORMANCE, RESPONSIVITY, PAIR
  • Marmara University Affiliated: Yes

Abstract

© 2023, The Minerals, Metals & Materials Society.It is becoming crucial to design/fabricate eco-friendly, sustainable electronic and photonic devices to minimize the carbon footprint for future systems. In this study, we have demonstrated a steady photoresponse enhancement of the self-powered GaN ultraviolet photodetector (GaN-UVPD) via sequentially deposited gold nanoparticles (Au NPs) under 254, 302, and 365 nm UV light exposure. The AuNP-deposited GaN-UVPD exhibited excellent responsivity of 0.65 A/W and detectivity of 6.51 × 1012 cm.Hz1/2 W−1 under 302 nm UV light without any external power. Moreover, the sensitivity of the device increased from 1.98 × 106% to 3.32 × 106% following Au nanoparticle deposition. Additionally, the plausible mechanisms for the self-powered and Au nanoparticle-induced photoresponse enhancement have been discussed. In brief, the high-performance photoresponsivity of our self-powered GaN-UVPD could find many useful applications in sustainable energy and eco-friendly optoelectronic devices.