High efficiency heterojunction solar cells on n-type kerfless mono crystalline silicon wafers by epitaxial growth

2015 ◽  
Vol 106 (22) ◽  
pp. 223504 ◽  
Author(s):  
Eiji Kobayashi ◽  
Yoshimi Watabe ◽  
Ruiying Hao ◽  
T. S. Ravi
Keyword(s):  
Solar Cells ◽  
Epitaxial Growth ◽  
High Efficiency ◽  
Crystalline Silicon ◽  
Silicon Wafers ◽  
Heterojunction Solar Cells

Novel high-efficiency crystalline-silicon-based compound heterojunction solar cells: HCT (heterojunction with compound thin-layer)

2014 ◽  
Vol 16 (29) ◽  
pp. 15400-15410 ◽  
Author(s):  
Yiming Liu ◽  
Yun Sun ◽  
Wei Liu ◽  
Jianghong Yao
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Thin Layer ◽  
High Efficiency ◽  
Crystalline Silicon ◽  
Heterojunction Solar Cell ◽  
Heterojunction Solar Cells ◽  
Silicon Based

A novel high-efficiency c-Si heterojunction solar cell with using compound hetero-materials is proposed and denominated HCT (heterojunction with a compound thin-layer).

Thin Epitaxial Silicon Foils Using Porous-Silicon-Based Lift-Off for Photovoltaic Application

MRS Advances ◽  
2016 ◽  
Vol 1 (48) ◽  
pp. 3235-3246 ◽  
Author(s):  
Twan Bearda ◽  
Ivan Gordon ◽  
Hariharsudan Sivaramakrishnan Radhakrishnan ◽  
Valérie Depauw ◽  
Kris Van Nieuwenhuysen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Porous Silicon ◽  
Epitaxial Layer ◽  
High Efficiency ◽  
Process Development ◽  
Silicon Wafers ◽  
Current Status ◽  
Epitaxial Silicon ◽  
Heterojunction Solar Cells ◽  
Lift Off

ABSTRACTIn order to reduce the material cost for silicon solar cells, several research groups are investigating methods to minimize the silicon consumption for making monocrystalline silicon wafers. One promising approach is deposition of an epitaxial layer on porous silicon, followed by detachment of the layer. This contribution discusses improvements in the epitaxial wafer fabrication by optimization of the porosification process. The introduction of a layered porous silicon structure allows to independently improve both epitaxial layer quality and detachment yield. In this way, we have managed to obtain 100µm thick silicon wafers with effective lifetimes up to 1.3ms, and 40µm thick wafers with effective lifetimes up to 700µs. We will also review the current status of the process development for solar cells made on thin wafers. Two approaches are presented. In the first approach, heterojunction solar cells are fabricated on freestanding epitaxial wafers of 40µm thickness. In the second approach, high efficiency (21%) heterojunction back-contacted cells are fabricated on wafers that are bonded to a glass superstrate. Challenges for device processing and limitations in cell performance are discussed.

Study of stacked-emitter layer for high efficiency amorphous/crystalline silicon heterojunction solar cells

2014 ◽  
Vol 116 (24) ◽  
pp. 244506 ◽  
Author(s):  
Youngseok Lee ◽  
Heewon Kim ◽  
S. M. Iftiquar ◽  
Sunbo Kim ◽  
Sangho Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Crystalline Silicon ◽  
Emitter Layer ◽  
Heterojunction Solar Cells ◽  
Silicon Heterojunction Solar Cells
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