Details
| Original language | English |
|---|---|
| Pages (from-to) | 148-150 |
| Number of pages | 3 |
| Journal | Physica Status Solidi - Rapid Research Letters |
| Volume | 2 |
| Issue number | 4 |
| Early online date | 7 Jul 2008 |
| Publication status | Published - Aug 2008 |
| Externally published | Yes |
Abstract
We present a novel solar cell structure, the "buried emitter solar cell". This concept is designed for decoupling the metallisation geometry from the geometry of the carrier collecting p-n junction in back-contacted (and in particular backjunction) solar cells without requiring electrical insulation by dielectric layers. The most prominent features of this device structure are a carrier collecting emitter that covers close to 100% of the total cell area and an effective electrical insulation between emitter and base metallisation via a p+-n+ junction. The experimental results presented in this paper report a 19.5% efficient "buried emitter solar cell", where 50% of the solar cell's rear side exhibit a p+-n+ junction. This preparation technique implies covering a boron-doped p-type emitter with an n-type surface layer that can be efficiently surfacepassivated by thermal oxidation. All structuring of this cell has been performed by laser processing without any photolithography.
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Physica Status Solidi - Rapid Research Letters, Vol. 2, No. 4, 08.2008, p. 148-150.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Buried emitter solar cell structures
T2 - Decoupling of metallisation geometry and carrier collection geometry of back contacted solar cells
AU - Harder, Nils Peter
AU - Mertens, Verena
AU - Brendel, Rolf
PY - 2008/8
Y1 - 2008/8
N2 - We present a novel solar cell structure, the "buried emitter solar cell". This concept is designed for decoupling the metallisation geometry from the geometry of the carrier collecting p-n junction in back-contacted (and in particular backjunction) solar cells without requiring electrical insulation by dielectric layers. The most prominent features of this device structure are a carrier collecting emitter that covers close to 100% of the total cell area and an effective electrical insulation between emitter and base metallisation via a p+-n+ junction. The experimental results presented in this paper report a 19.5% efficient "buried emitter solar cell", where 50% of the solar cell's rear side exhibit a p+-n+ junction. This preparation technique implies covering a boron-doped p-type emitter with an n-type surface layer that can be efficiently surfacepassivated by thermal oxidation. All structuring of this cell has been performed by laser processing without any photolithography.
AB - We present a novel solar cell structure, the "buried emitter solar cell". This concept is designed for decoupling the metallisation geometry from the geometry of the carrier collecting p-n junction in back-contacted (and in particular backjunction) solar cells without requiring electrical insulation by dielectric layers. The most prominent features of this device structure are a carrier collecting emitter that covers close to 100% of the total cell area and an effective electrical insulation between emitter and base metallisation via a p+-n+ junction. The experimental results presented in this paper report a 19.5% efficient "buried emitter solar cell", where 50% of the solar cell's rear side exhibit a p+-n+ junction. This preparation technique implies covering a boron-doped p-type emitter with an n-type surface layer that can be efficiently surfacepassivated by thermal oxidation. All structuring of this cell has been performed by laser processing without any photolithography.
UR - http://www.scopus.com/inward/record.url?scp=66149088949&partnerID=8YFLogxK
U2 - 10.1002/pssr.200802113
DO - 10.1002/pssr.200802113
M3 - Article
AN - SCOPUS:66149088949
VL - 2
SP - 148
EP - 150
JO - Physica Status Solidi - Rapid Research Letters
JF - Physica Status Solidi - Rapid Research Letters
SN - 1862-6254
IS - 4
ER -