Optical and Electrical Effects of p-type μc-SiOx:H in Thin-Film Silicon Solar Cells on Various Front Textures
p-type hydrogenated microcrystalline silicon oxide (µc-SiOx:H) was developed and implemented as a contact layer in hydrogenated amorphous silicon (a-Si:H) single junction solar cells. Higher transparency, sufficient electrical conductivity, low ohmic contact to sputtered ZnO:Al, and tunable refracti...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2014/176965 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850222943534055424 |
|---|---|
| author | Chao Zhang Matthias Meier Andreas Lambertz Vladimir Smirnov Bernhard Holländer Aad Gordijn Tsvetelina Merdzhanova |
| author_facet | Chao Zhang Matthias Meier Andreas Lambertz Vladimir Smirnov Bernhard Holländer Aad Gordijn Tsvetelina Merdzhanova |
| author_sort | Chao Zhang |
| collection | DOAJ |
| description | p-type hydrogenated microcrystalline silicon oxide (µc-SiOx:H) was developed and implemented as a contact layer in hydrogenated amorphous silicon (a-Si:H) single junction solar cells. Higher transparency, sufficient electrical conductivity, low ohmic contact to sputtered ZnO:Al, and tunable refractive index make p-type µc-SiOx:H a promising alternative to the commonly used p-type hydrogenated microcrystalline silicon (µc-Si:H) contact layers. In this work, p-type µc-SiOx:H layers were fabricated with a conductivity of up to 10−2 S/cm and a Raman crystallinity of above 60%. Furthermore, we present p-type µc-SiOx:H films with a broad range of optical properties (2.1 eV < band gap E04<2.8 eV and 1.6 < refractive index n<2.6). These properties can be tuned by adapting deposition parameters, for example, the CO2/SiH4 deposition gas ratio. A conversion efficiency improvement of a-Si:H solar cells is achieved by applying p-type µc-SiOx:H contact layer compared to the standard p-type µc-Si:H contact layer. As another aspect, the influence of the front side texture on a-Si:H p-i-n solar cells with different p-type contact layers, µc-Si:H and µc-SiOx:H, is investigated. Furthermore, we discuss the correlation between the decrease of Voc and the cell surface area derived from AFM measurements. |
| format | Article |
| id | doaj-art-6c30928a9bde438bbcda2b2d32320445 |
| institution | OA Journals |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-6c30928a9bde438bbcda2b2d323204452025-08-20T02:06:07ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2014-01-01201410.1155/2014/176965176965Optical and Electrical Effects of p-type μc-SiOx:H in Thin-Film Silicon Solar Cells on Various Front TexturesChao Zhang0Matthias Meier1Andreas Lambertz2Vladimir Smirnov3Bernhard Holländer4Aad Gordijn5Tsvetelina Merdzhanova6IEK5-Photovoltaik, Forschungszentrum Jülich, 52425 Jülich, GermanyIEK5-Photovoltaik, Forschungszentrum Jülich, 52425 Jülich, GermanyIEK5-Photovoltaik, Forschungszentrum Jülich, 52425 Jülich, GermanyIEK5-Photovoltaik, Forschungszentrum Jülich, 52425 Jülich, GermanyPeter Grünberg Institute (PGI-9), Forschungszentrum Jülich, 52425 Jülich, GermanyIEK5-Photovoltaik, Forschungszentrum Jülich, 52425 Jülich, GermanyIEK5-Photovoltaik, Forschungszentrum Jülich, 52425 Jülich, Germanyp-type hydrogenated microcrystalline silicon oxide (µc-SiOx:H) was developed and implemented as a contact layer in hydrogenated amorphous silicon (a-Si:H) single junction solar cells. Higher transparency, sufficient electrical conductivity, low ohmic contact to sputtered ZnO:Al, and tunable refractive index make p-type µc-SiOx:H a promising alternative to the commonly used p-type hydrogenated microcrystalline silicon (µc-Si:H) contact layers. In this work, p-type µc-SiOx:H layers were fabricated with a conductivity of up to 10−2 S/cm and a Raman crystallinity of above 60%. Furthermore, we present p-type µc-SiOx:H films with a broad range of optical properties (2.1 eV < band gap E04<2.8 eV and 1.6 < refractive index n<2.6). These properties can be tuned by adapting deposition parameters, for example, the CO2/SiH4 deposition gas ratio. A conversion efficiency improvement of a-Si:H solar cells is achieved by applying p-type µc-SiOx:H contact layer compared to the standard p-type µc-Si:H contact layer. As another aspect, the influence of the front side texture on a-Si:H p-i-n solar cells with different p-type contact layers, µc-Si:H and µc-SiOx:H, is investigated. Furthermore, we discuss the correlation between the decrease of Voc and the cell surface area derived from AFM measurements.http://dx.doi.org/10.1155/2014/176965 |
| spellingShingle | Chao Zhang Matthias Meier Andreas Lambertz Vladimir Smirnov Bernhard Holländer Aad Gordijn Tsvetelina Merdzhanova Optical and Electrical Effects of p-type μc-SiOx:H in Thin-Film Silicon Solar Cells on Various Front Textures International Journal of Photoenergy |
| title | Optical and Electrical Effects of p-type μc-SiOx:H in Thin-Film Silicon Solar Cells on Various Front Textures |
| title_full | Optical and Electrical Effects of p-type μc-SiOx:H in Thin-Film Silicon Solar Cells on Various Front Textures |
| title_fullStr | Optical and Electrical Effects of p-type μc-SiOx:H in Thin-Film Silicon Solar Cells on Various Front Textures |
| title_full_unstemmed | Optical and Electrical Effects of p-type μc-SiOx:H in Thin-Film Silicon Solar Cells on Various Front Textures |
| title_short | Optical and Electrical Effects of p-type μc-SiOx:H in Thin-Film Silicon Solar Cells on Various Front Textures |
| title_sort | optical and electrical effects of p type μc siox h in thin film silicon solar cells on various front textures |
| url | http://dx.doi.org/10.1155/2014/176965 |
| work_keys_str_mv | AT chaozhang opticalandelectricaleffectsofptypemcsioxhinthinfilmsiliconsolarcellsonvariousfronttextures AT matthiasmeier opticalandelectricaleffectsofptypemcsioxhinthinfilmsiliconsolarcellsonvariousfronttextures AT andreaslambertz opticalandelectricaleffectsofptypemcsioxhinthinfilmsiliconsolarcellsonvariousfronttextures AT vladimirsmirnov opticalandelectricaleffectsofptypemcsioxhinthinfilmsiliconsolarcellsonvariousfronttextures AT bernhardhollander opticalandelectricaleffectsofptypemcsioxhinthinfilmsiliconsolarcellsonvariousfronttextures AT aadgordijn opticalandelectricaleffectsofptypemcsioxhinthinfilmsiliconsolarcellsonvariousfronttextures AT tsvetelinamerdzhanova opticalandelectricaleffectsofptypemcsioxhinthinfilmsiliconsolarcellsonvariousfronttextures |