Gapless point back surface field for the counter doping of large-area interdigitated back contact solar cells using a blanket shadow mask implantation process

2017 ◽  
Vol 25 (12) ◽  
pp. 989-995 ◽  
Author(s):  
Young-Su Kim ◽  
Chanbin Mo ◽  
Doo Youl Lee ◽  
Sung Chan Park ◽  
Dongseop Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Back Surface ◽  
Shadow Mask ◽  
Back Contact ◽  
Large Area ◽  
Back Surface Field ◽  
Surface Field ◽  
Implantation Process

Screen-Printed Al Back Contacts on Si Solar Cells: Issues and Some Solutions

2009 ◽  
Vol 1210 ◽  
Author(s):  
Vishal Mehta ◽  
Bhushan Sopori ◽  
Robert Reedy ◽  
Bobby To ◽  
Helio Moutinho ◽  
...  
Keyword(s):  
Surface Tension ◽  
Solar Cells ◽  
Basic Problem ◽  
Series Resistance ◽  
Back Surface ◽  
Al Alloy ◽  
Back Contact ◽  
Back Surface Field ◽  
Si Solar Cells ◽  
Surface Field

AbstractThis paper identifies some mechanisms that lead to problems in back Al contact formation. Major issues are related to a basic problem that the Al melt has a large surface tension and tries to ball up during the firing step. Other issues arise from dissolution of the Si-Al interface and entrapment of glass within the Si-Al alloy. Si diffusion into Al can be applied to control the melt, while cooling rate can help improve the structure of various regions of the back contact for a favorable series resistance. We also discuss a modified time-temperature profile that can lead to a deep and uniform back-surface field.

Influence of laser power on POCl3 diffused back surface field on n-type PERT silicon solar cells with local back contact

2013 ◽  
Vol 13 (7) ◽  
pp. 1397-1400 ◽  
Author(s):  
Nagarajan Balaji ◽  
Kyuwan Song ◽  
Jaewoo Choi ◽  
Cheolmin Park ◽  
Minkyu Ju ◽  
...  
Keyword(s):  
Solar Cells ◽  
Laser Power ◽  
Silicon Solar Cells ◽  
Back Surface ◽  
Back Contact ◽  
Back Surface Field ◽  
Surface Field

Laser Fired Local Back Contact C-Si Solar Cells Using Phosphoric Acid for Back Surface Field

2015 ◽  
Vol 44 (4) ◽  
pp. 1181-1186 ◽  
Author(s):  
Nagarajan Balaji ◽  
Cheolmin Park ◽  
Minkyu Ju ◽  
Seunghwan Lee ◽  
Jungmo Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Phosphoric Acid ◽  
Back Surface ◽  
Back Contact ◽  
Back Surface Field ◽  
Si Solar Cells ◽  
Surface Field

scholarly journals Numerical Investigation of Graphene as a Back Surface Field Layer on the Performance of Cadmium Telluride Solar Cell

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3275
Author(s):  
Devendra KC ◽  
Deb Kumar Shah ◽  
M. Shaheer Akhtar ◽  
Mira Park ◽  
Chong Yeal Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Doping Concentration ◽  
Carrier Lifetime ◽  
Short Circuit ◽  
Back Surface ◽  
Back Surface Field ◽  
Cdte Solar Cell ◽  
Cdte Solar Cells ◽  
Surface Field

This paper numerically explores the possibility of ultrathin layering and high efficiency of graphene as a back surface field (BSF) based on a CdTe solar cell by Personal computer one-dimensional (PC1D) simulation. CdTe solar cells have been characterized and studied by varying the carrier lifetime, doping concentration, thickness, and bandgap of the graphene layer. With simulation results, the highest short-circuit current (Isc = 2.09 A), power conversion efficiency (h = 15%), and quantum efficiency (QE ~ 85%) were achieved at a carrier lifetime of 1 × 103 ms and a doping concentration of 1 × 1017 cm−3 of graphene as a BSF layer-based CdTe solar cell. The thickness of the graphene BSF layer (1 mm) was proven the ultrathin, optimal, and obtainable for the fabrication of high-performance CdTe solar cells, confirming the suitability of graphene material as a BSF. This simulation confirmed that a CdTe solar cell with the proposed graphene as the BSF layer might be highly efficient with optimized parameters for fabrication.

Screen-printed n-type Si solar cells with laser-doped selective back surface field

Solar Energy ◽  
2021 ◽  
Vol 220 ◽  
pp. 211-216
Author(s):  
H.P. Yin ◽  
W.S. Tang ◽  
J.B. Zhang ◽  
W. Shan ◽  
X.M. Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Back Surface ◽  
Back Surface Field ◽  
Si Solar Cells ◽  
Surface Field ◽  
Screen Printed

Effects of buffer layer and back-surface field on MBE-grown InGaAsP/InGaAs solar cells

2016 ◽  
Vol 55 (2) ◽  
pp. 022301 ◽  
Author(s):  
Yuanyuan Wu ◽  
Lian Ji ◽  
Pai Dai ◽  
Ming Tan ◽  
Shulong Lu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Buffer Layer ◽  
Back Surface ◽  
Back Surface Field ◽  
Surface Field
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