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A Study on the Material Characteristics of the NiO/ZnO Ultraviolet Sensor Based on Solution Process

용액 공정 기반 NiO/ZnO계 자외선 센서용 재료 특성 연구

  • Moon, Seong-Cheol (Department of Materials Engineering, Korea Polytechnic University) ;
  • Lee, Ji-Seon (Department of Materials Engineering, Korea Polytechnic University) ;
  • No, Kyeong-Jae (Department of Materials Engineering, Korea Polytechnic University) ;
  • Yang, Seong-Ju (Department of Materials Engineering, Korea Polytechnic University) ;
  • Lee, Seong-Eui (Department of Materials Engineering, Korea Polytechnic University)
  • 문성철 (한국산업기술대학교 신소재공학과) ;
  • 이지선 (한국산업기술대학교 신소재공학과) ;
  • 노경재 (한국산업기술대학교 신소재공학과) ;
  • 양성주 (한국산업기술대학교 신소재공학과) ;
  • 이성의 (한국산업기술대학교 신소재공학과)
  • Received : 2017.03.23
  • Accepted : 2017.05.22
  • Published : 2017.08.01

Abstract

Ultraviolet (UV) photodetectors are used in various industries and fields of research, including optical communication, flame sensing, missile plume detection, astronomical studies, biological sensors, and environmental research. However, general UV detectors that employ Schottky junction diodes and p-n junctions have high fabrication cost and low quantum efficiency. In this study, we investigated the characteristics of materials used to manufacture UV photodetectors in a low-cost solution process that requires easy fabrication of flexible substrates. We fabricated p-type NiO and n-type ZnO substrates with wide band gap by the sol-gel method and compared the characteristics of substrates prepared under different spin-coating and heat-treatment conditions.

Keywords

References

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