Details
| Original language | English |
|---|---|
| Title of host publication | Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4 |
| Publisher | IEEE Computer Society |
| Pages | 900-904 |
| Number of pages | 5 |
| ISBN (print) | 1424400163, 9781424400164, 1-4244-0017-1 |
| Publication status | Published - 2006 |
| Externally published | Yes |
| Event | 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion (WCPEC-4) - Waikoloa, HI, United States Duration: 7 May 2006 → 12 May 2006 Conference number: 4 |
Abstract
We employ laser technology as a key processing tool for fabricating our novel RISE (Rear Interdigitated Single Evaporation) silicon solar cells. The contactless production sequence incorporates a self-aligning single evaporation step for metallising the interdigitated rear contacts. In this paper, we compare in detail the performance of two types of RISE solar cells with different contact formations to the base: (a) back surface field formation via aluminium doping produced by local laser-firing of the aluminium contact (Al-BSF) and (b) local diffusion of boron (B-BSF). The best solar cell with B-BSF has an AM1.5 efficiency of 21.5 %. The efficiencies of RISE solar cells with Al-BSF are considerably lower due to 5-10% lower short-circuit currents. We ascribe these photocurrent losses to a less-efficient BSF effect of the laser-fired contact compared to a boron-diffused BSF.
ASJC Scopus subject areas
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Engineering(all)
- Electrical and Electronic Engineering
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Materials Science(all)
- Materials Chemistry
Sustainable Development Goals
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Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4. IEEE Computer Society, 2006. p. 900-904 4059774.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Rise: 21.5% efficient back junction silicon solar cell with laser technology as a key processing tool
AU - Engelhart, P.
AU - Harder, N. P.
AU - Merkle, A.
AU - Grischke, R.
AU - Meyer, R.
AU - Brendel, R.
N1 - Conference code: 4
PY - 2006
Y1 - 2006
N2 - We employ laser technology as a key processing tool for fabricating our novel RISE (Rear Interdigitated Single Evaporation) silicon solar cells. The contactless production sequence incorporates a self-aligning single evaporation step for metallising the interdigitated rear contacts. In this paper, we compare in detail the performance of two types of RISE solar cells with different contact formations to the base: (a) back surface field formation via aluminium doping produced by local laser-firing of the aluminium contact (Al-BSF) and (b) local diffusion of boron (B-BSF). The best solar cell with B-BSF has an AM1.5 efficiency of 21.5 %. The efficiencies of RISE solar cells with Al-BSF are considerably lower due to 5-10% lower short-circuit currents. We ascribe these photocurrent losses to a less-efficient BSF effect of the laser-fired contact compared to a boron-diffused BSF.
AB - We employ laser technology as a key processing tool for fabricating our novel RISE (Rear Interdigitated Single Evaporation) silicon solar cells. The contactless production sequence incorporates a self-aligning single evaporation step for metallising the interdigitated rear contacts. In this paper, we compare in detail the performance of two types of RISE solar cells with different contact formations to the base: (a) back surface field formation via aluminium doping produced by local laser-firing of the aluminium contact (Al-BSF) and (b) local diffusion of boron (B-BSF). The best solar cell with B-BSF has an AM1.5 efficiency of 21.5 %. The efficiencies of RISE solar cells with Al-BSF are considerably lower due to 5-10% lower short-circuit currents. We ascribe these photocurrent losses to a less-efficient BSF effect of the laser-fired contact compared to a boron-diffused BSF.
UR - http://www.scopus.com/inward/record.url?scp=41749114726&partnerID=8YFLogxK
U2 - 10.1109/WCPEC.2006.279601
DO - 10.1109/WCPEC.2006.279601
M3 - Conference contribution
AN - SCOPUS:41749114726
SN - 1424400163
SN - 9781424400164
SN - 1-4244-0017-1
SP - 900
EP - 904
BT - Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4
PB - IEEE Computer Society
T2 - 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion (WCPEC-4)
Y2 - 7 May 2006 through 12 May 2006
ER -