Wet-Chemical Preparation of Silicon Tunnel Oxides for Transparent Passivated Contacts in Crystalline Silicon Solar Cells

2018 ◽  
Vol 10 (17) ◽  
pp. 14259-14263 ◽  
Author(s):  
Malte Köhler ◽  
Manuel Pomaska ◽  
Florian Lentz ◽  
Friedhelm Finger ◽  
Uwe Rau ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystalline Silicon ◽  
Silicon Solar Cells ◽  
Chemical Preparation ◽  
Crystalline Silicon Solar Cells ◽  
Wet Chemical ◽  
Tunnel Oxides

‘Just-Clean-Enough’: Optimization of Wet Chemical Cleaning Processes for Crystalline Silicon Solar Cells

2016 ◽  
Vol 255 ◽  
pp. 344-347 ◽  
Author(s):  
Michael Haslinger ◽  
M. Soha ◽  
S. Robert ◽  
M. Claes ◽  
Paul W. Mertens ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Crystalline Silicon ◽  
Silicon Solar Cells ◽  
Semiconductor Surface ◽  
Cleaning Process ◽  
Chemical Cleaning ◽  
Crystalline Silicon Solar Cells ◽  
Metal Impurities ◽  
Wet Chemical

Advanced concepts for photovoltaic silicon solar cells, especially high-efficiency n-type solar cells, requires appropriate wet cleaning treatment in order to remove metallic contamination prior to high temperature processes like diffusion and passivation [1]. The cost of the cleaning process should be as low as possible that requires an optimized usage of the chemicals by increasing process tank lifetimes and developing dedicated feed and bleed recipes. The just clean enough concept has been developed to fulfil the needs of PV industry to minimize the consumption of chemicals. When the dominant contamination metal is identified in quality and quantity, a dedicated wet chemical cleaning process can be applied to remove the metal concentration from the semiconductor surface under a specified limit with the minimum volume on cleaning solution. The paper describes how to optimize a dedicated wet cleaning process for prominent metal impurities like Fe, Cu, Cr, Ti, Co and Zn. For each metal an exchange volume is determined to develop a feed and bleed recipe. The accumulation of the metal impurities in the process tank is calculated and process tank lifetimes are predicted.

A novel low cost texturization method for large area commercial mono-crystalline silicon solar cells

2006 ◽  
Vol 90 (20) ◽  
pp. 3557-3567 ◽  
Author(s):  
U. Gangopadhyay ◽  
K.H. Kim ◽  
S.K. Dhungel ◽  
U. Manna ◽  
P.K. Basu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystalline Silicon ◽  
Low Cost ◽  
Silicon Solar Cells ◽  
Large Area ◽  
Crystalline Silicon Solar Cells

Electron‐Selective ‍Lithium Contacts for Crystalline Silicon Solar Cells

2021 ◽  
pp. 2100015
Author(s):  
Jingxuan Kang ◽  
Xinbo Yang ◽  
Wenzhu Liu ◽  
Jiang Liu ◽  
Hang Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystalline Silicon ◽  
Silicon Solar Cells ◽  
Crystalline Silicon Solar Cells
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