Investigation of antimony diffusion for a local back surface field with laser-fired contacts in crystalline silicon solar cells
| Autor: | Junsin Yi, Tae Seok Lee, Bonggi Kim, Hoongjoo Lee, Nagarajan Balaji, Jae Woo Choi, Kyuwan Song, Minkyu Ju, Youn-Jung Lee, Cheolmin Park, Youngseok Lee, Kyungyul Ryu |
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| Rok vydání: | 2013 |
| Předmět: |
Contact process
Materials science business.industry Mechanical Engineering Diffusion Metals and Alloys chemistry.chemical_element Nanotechnology Condensed Matter Physics Laser law.invention Antimony chemistry Mechanics of Materials law Optoelectronics General Materials Science Crystalline silicon Laser power scaling business Layer (electronics) Current density |
| Zdroj: | Scripta Materialia. 68:325-328 |
| ISSN: | 1359-6462 |
| DOI: | 10.1016/j.scriptamat.2012.11.004 |
| Popis: | We report on a laser-doping process for the formation of a local back surface field with antimony for n-type crystalline silicon solar cells. The local back surface field was formed at low temperature with a laser-fired contact process. A 100 nm thick Sb layer with 44 mW laser power resulted in a junction depth of 500 nm, and a carrier concentration of 5 × 1020 cm−3 yielded the best electrical results, with a current density of 35 mA cm−2 and an efficiency of 17.16%. |
| Databáze: | OpenAIRE |
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