| Autor: |
Sang-Wook Lee, Jung-Ho Lee, Jun-Mo Yang, Moon Seop Hyun, Xiaopeng Li, Han-Don Um, Sang-Won Jee, Syed Abdul Moiz, Jin-Young Jung, Yun Chang Park, Hong-Seok Seo, Kwang-Tae Park, Jong-Yeoul Ji, Chung Tae Kim |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
2009 IEEE International Electron Devices Meeting (IEDM). |
| DOI: |
10.1109/iedm.2009.5424298 |
| Popis: |
Periodically patterned co-integration of silicon microwires (MWs) and nanowires (NWs) were applied for a novel photo-voltaic (PV) nanodevice. The optical improvement due to antireflection enhancement with a graded-refractive-index (GRI) effect (see Fig. 1) was observed by employing the tapered NWs. Si MWs that formed a radial p-n junction were located in between the dense array of Si NWs. These wire arrays were cost-effectively defined by metal-assisted electro-less wet etching. The co-integrated nanostructure of Si NWs and MWs demonstrated a high short circuit current (J sc ) and cell conversion efficiency (CE) compared to a sole array of Si NWs or MWs. Highest values of J sc and CE at 1.5AM illumination were recorded as 24.89 mA/cm2 and 8.45%, respectively, which have been champion data reported to date in wire based PV cells using a radial p-n junction. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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