Efficient Light Harvesting by Well-Aligned In2O3 Nanopushpins as Antireflection Layer on Si Solar Cells

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• 作者：Chun-Ying Huang ; Guan-Cheng Lin ; Yeun-Jung Wu ; Tai-Yuan Lin ; Ying-Jay Yang ; Yang-Fang Chen
• 刊名：Journal of Physical Chemistry C
• 出版年：2011
• 出版时间：July 7, 2011
• 年：2011
• 卷：115
• 期：26
• 页码：13083-13087
• 全文大小：841K
• 年卷期：v.115,no.26(July 7, 2011)
• ISSN：1932-7455

文摘

Light harvesting from In₂O₃ nanopushpins as an antireflection layer has been investigated. We report on the growth of In₂O₃ nanopushpins on silicon solar cells by catalyst-free and improved two-zone chemical vapor deposition in order to provide a suitable growth environment with low temperature and high growth rate for practical applications. On the basis of spectral reflectance and cell responsivity measurements, we show that In₂O₃ nanopushpins provide efficient light trapping properties. A dramatic enhancement in short-circuit current (from 19.65 to 24.73 mA/cm²) with In₂O₃ nanopushpins than that of the bulk silicon wafer is observed. The solar cells incorporated with In₂O₃ nanopushpins therefore open an excellent alternative to serve as an antireflection layer for the enhancement of light harvesting and cell efficiency.