Nano-patterned glass superstrates with different aspect ratios for enhanced light harvesting in a-Si:H thin film solar cells
Nano-patterned glass superstrates obtained via a large-area production approach are desirable for antireflection and light trapping in thin-film solar cells. The tapered nanostructures allow a graded refractive index profile between the glass and material interfaces, leading to suppressed surface re...
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Published in | Optics express Vol. 20; no. 10; pp. A412 - A417 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
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United States
07.05.2012
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Abstract | Nano-patterned glass superstrates obtained via a large-area production approach are desirable for antireflection and light trapping in thin-film solar cells. The tapered nanostructures allow a graded refractive index profile between the glass and material interfaces, leading to suppressed surface reflection and increased forward diffraction of light. In this work, we investigate nanostructured glass patterns with different aspect ratios using scalable nanosphere lithography for hydrogenated amorphous silicon (a-Si:H) thin film solar cells. Compared to flat glass cell and Asahi U-type glass cell, enhancements in short-circuit current density (J(sc)) of 51.6% and 8%, respectively, were achieved for a moderate aspect ratio of 0.16. The measured external quantum efficiencies (EQE) spectra confirmed a broadband enhancement due to antireflection and light trapping properties. |
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AbstractList | Nano-patterned glass superstrates obtained via a large-area production approach are desirable for antireflection and light trapping in thin-film solar cells. The tapered nanostructures allow a graded refractive index profile between the glass and material interfaces, leading to suppressed surface reflection and increased forward diffraction of light. In this work, we investigate nanostructured glass patterns with different aspect ratios using scalable nanosphere lithography for hydrogenated amorphous silicon (a-Si:H) thin film solar cells. Compared to flat glass cell and Asahi U-type glass cell, enhancements in short-circuit current density (J(sc)) of 51.6% and 8%, respectively, were achieved for a moderate aspect ratio of 0.16. The measured external quantum efficiencies (EQE) spectra confirmed a broadband enhancement due to antireflection and light trapping properties. |
Author | Shieh, Jia-Min Shen, Chang-Hong Tsai, Min-An Chen, Ting-Gang Kuo, Hao-Chung Tsai, Yu-Lin Yu, Peichen |
Author_xml | – sequence: 1 givenname: Ting-Gang surname: Chen fullname: Chen, Ting-Gang organization: Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan – sequence: 2 givenname: Peichen surname: Yu fullname: Yu, Peichen – sequence: 3 givenname: Yu-Lin surname: Tsai fullname: Tsai, Yu-Lin – sequence: 4 givenname: Chang-Hong surname: Shen fullname: Shen, Chang-Hong – sequence: 5 givenname: Jia-Min surname: Shieh fullname: Shieh, Jia-Min – sequence: 6 givenname: Min-An surname: Tsai fullname: Tsai, Min-An – sequence: 7 givenname: Hao-Chung surname: Kuo fullname: Kuo, Hao-Chung |
BackLink | https://www.ncbi.nlm.nih.gov/pubmed/22712090$$D View this record in MEDLINE/PubMed |
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CitedBy_id | crossref_primary_10_4313_TEEM_2016_17_2_98 crossref_primary_10_1039_C5NR04440E crossref_primary_10_3390_nano11010129 crossref_primary_10_1063_1_4899198 crossref_primary_10_1088_0022_3727_46_41_415102 crossref_primary_10_1021_am402881x crossref_primary_10_1021_nn402976b crossref_primary_10_1002_adma_201400186 crossref_primary_10_1002_adom_201400514 crossref_primary_10_1002_admt_202100091 crossref_primary_10_1364_OPTICA_4_000678 |
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