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Efficient three-dimensional nanostructured photoelectric device by Al-ZnO coating on lithography-free patterned Si nanopillars
- Authors
- Jee, Sang-Won; Park, Seong-Je; Kim, Joondong; Park, Yun Chang; Choi, Jun-Hyuk; Jeong, Jun-Ho; Lee, Jung-Ho
- Issue Date
- Aug-2011
- Publisher
- American Institute of Physics
- Keywords
- SOLAR-CELLS; SILICON NANOWIRES
- Citation
- Applied Physics Letters, v.99, no.5, pp.1 - 3
- Indexed
- SCIE
SCOPUS
- Journal Title
- Applied Physics Letters
- Volume
- 99
- Number
- 5
- Start Page
- 1
- End Page
- 3
- ISSN
- 0003-6951
- Abstract
- An efficient three-dimensional (3D) nanostructure photoelectric device is presented. An Al-doped ZnO (AZO) coating was applied to lithography-free patterned Si nanopillars and spontaneously formed a radial heterojunction (n-AZO/p-Si) photodiode having a quality ideality factor of 1.64. A significantly enhanced photocurrent of 5.45 mA/cm(2) was obtained from the 3D nanostructure relative to that of a planar substrate (1.1 mA/cm(2)). This enhancement is induced by enlargement of the light-active surface area and an anti-reflection effect. Due to the intermediate refractive index of AZO, the reflection was distinctively reduced in the air-Si system. It discusses an effective approach for realizing nanostructured photoelectric device. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3621877]
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Related Researcher
- Lee, Jung-Ho
- ERICA 공학대학 (DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING)