View : 905 Download: 0
Surface photovoltage characterizations of Si nanopillar arrays for verifying field-effect passivation using a SiNx layer
- Title
- Surface photovoltage characterizations of Si nanopillar arrays for verifying field-effect passivation using a SiNx layer
- Authors
- Kim, Eunah; Cho, Yunae; Sohn, Ahrum; Kim, Dong-Wook; Park, Hyeong-Ho; Kim, Joondong
- Ewha Authors
- 김동욱
- SCOPUS Author ID
- 김동욱

- Issue Date
- 2016
- Journal Title
- CURRENT APPLIED PHYSICS
- ISSN
- 1567-1739
1878-1675
- Citation
- CURRENT APPLIED PHYSICS vol. 16, no. 2, pp. 141 - 144
- Keywords
- Nanopillar; Si; Antireflection; Mie resonance; Surface photovoltage
- Publisher
- ELSEVIER SCIENCE BV
- Indexed
- SCI; SCIE; SCOPUS; KCI

- Document Type
- Article
- Abstract
- The surface photovoltage (SPV) characteristics of periodic nanopillar (NP) arrays formed on Si wafers were investigated. The NP arrays exhibited broadband omnidirectional antireflection effects with Mie resonance. Kelvin probe force microscopy (KPFM) revealed that the positive fixed charges in SiNx layers induced band bending at the Si surface and increased surface photovoltage (SPV) at the NP top surface. Estimated SPV values, determined by the amount of surface band bending, were similar in NPs and planar counterparts. This finding suggests that field effect passivation by the dielectric layer coating could help improve photovoltaic performance of nanostructure-based Si solar cells and that KPFM may be a useful tool for the investigation of surface electrical properties of Si nanostructures. (C) 2015 Elsevier B.V. All rights reserved.
- DOI
- 10.1016/j.cap.2015.11.006
- Appears in Collections:
- 자연과학대학 > 물리학전공 > Journal papers
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML