Towards 10% State-of-the-Art Pure Sulfide Cu2ZnSnS4 Solar Cell by modifying the Interface Chemistry

2017 ◽  
Author(s):  
Kaiwen Sun ◽  
Jialiang Huang ◽  
Steve Johnston ◽  
Chang Yan ◽  
Fangyang Liu ◽  
...  
Keyword(s):  
Solar Cell ◽  
State Of The Art ◽  
Interface Chemistry

Simplified Cleaning for a-Si:H Passivation of Wafers Bonded to Glass

2014 ◽  
Vol 219 ◽  
pp. 297-299
Author(s):  
Stefano Nicola Granata ◽  
T. Bearda ◽  
I. Gordon ◽  
Y. Abdulraheem ◽  
R. Mertens ◽  
...  
Keyword(s):  
Solar Cell ◽  
State Of The Art ◽  
Reactive Ion Etching ◽  
Rear Side ◽  
Back Contact ◽  
Solar Module ◽  
Ion Etching ◽  
Cell Processing ◽  
Passivation Process

Silicon photovoltaic (PV) roadmaps indicate the reduction of wafer thicknesses and the need for innovation in wafering method and cell processing. Within this framework, Imec proposes the i2-module device [1], i.e. an heterojunction interdigitated back-contact (HJ i-BC) solar module [2] processed on 40-μm thick epitaxial wafers bonded to carriers by means of silicone. In the i2-module concept, the Rear Side (RS) of the solar cell is passivated while the wafer is bonded to the module glass and the influence of the silicone on the passivation process is reduced by an O2 plasma realized in an Reactive Ion Etching (RIE) chamber [3]. In this contribution, the effect of different post-bonding cleaning sequences on the passivation of wafers/silicone/glass stacks treated with an O2 plasma is investigated and a simplified post-bonding cleaning sequence leading to state-of-the-art passivation is proposed.

Advanced photovoltaic thermal collectors

2019 ◽  
Vol 234 (2) ◽  
pp. 206-213 ◽  
Author(s):  
Kamaruzzaman Sopian ◽  
Ali H A Alwaeli ◽  
Hussein A Kazem
Keyword(s):  
Solar Cell ◽  
Low Temperature ◽  
State Of The Art ◽  
Working Fluid ◽  
Photovoltaic Module ◽  
Thermal Loads ◽  
Thermal Systems ◽  
Negative Effect ◽  
Waste Energy ◽  
Lengthy Discussion

The solar irradiance received by the solar cell is partially lost as heat, which carries negative effect on its voltage and in turn, its generated power. This trapped heat within the photovoltaic module is considered waste energy. Hence, techniques to extract this heat to utilize it for thermal loads, such as water heating or drying, are presented throughout the literature. Most prominent technique is the hybrid photovoltaic thermal collector. This device will serve in cooling the solar cell and hence improving its efficiency during operation. Meanwhile, it will absorb the heat and transfer it into a working fluid. The fluid could be utilized directly or indirectly for thermal loads in moderate and low temperature range applications. The type of working fluid highly affects the photovoltaic thermal performance and its physical design. This paper tracks the development of working fluids and analyzes highly efficient photovoltaic thermals from the literature. Moreover, a lengthy discussion on state-of-the-art photovoltaic thermal systems is presented and recommendations for future works are listed as well.

scholarly journals Can Impurities be Beneficial to Photovoltaics?

2009 ◽  
Vol 156-158 ◽  
pp. 107-114
Author(s):  
Antonio Luque ◽  
Antonio Martí
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Quantum Dot ◽  
State Of The Art ◽  
The State ◽  
Bulk Materials ◽  
Intermediate Band ◽  
Intermediate Band Solar Cells

The state of the art of the intermediate band solar cells is presented with emphasis on the use of impurities or alloys to form bulk intermediate band materials. Quantum dot intermediate band solar cells start to present already attractive efficiencies but many difficulties jeopardize the immediate achievement of record efficiency cells. To complement this research it is worthwhile examining bulk materials presenting an IB. Four or perhaps more materials have already proven to have it and several paths for the research of more are today open but no solar cell has yet been published based on them. This topic has already attracted many researches and abundant funds for their development worldwide.

scholarly journals Wet Processing in State-of-the-Art Cu(In,Ga)(S,Se)2 Thin Film Solar Cells

2018 ◽  
Vol 282 ◽  
pp. 300-305 ◽  
Author(s):  
Dilara Gokcen Buldu ◽  
Jessica de Wild ◽  
Thierry Kohl ◽  
Sunil Suresh ◽  
Gizem Birant ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cell ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
State Of The Art ◽  
Open Circuit ◽  
Thin Film Solar Cells ◽  
Interface Quality ◽  
Interface Recombination ◽  
Wet Processing

Interface quality plays a key role in solar cell applications. Interface recombination at the front and rear surfaces, which determine this quality, have significant effects on open circuit voltage and fill factor values. In this work, several surface treatments were applied on Cu(In,Ga)Se2 (CIGS) surfaces to improve the interface quality. Besides, the passivation layer implementation was investigated to reduce interface recombination between the buffer and absorber layers.

Ion implant technology for state-of-the-art high efficiency solar cell applications

2016 ◽  
Author(s):  
Guangyao Jin ◽  
Yaojie Sun ◽  
Yizhe Wang ◽  
David Wei Zhang ◽  
Lin Chen ◽  
...  
Keyword(s):  
Solar Cell ◽  
High Efficiency ◽  
State Of The Art

Beyond 10% efficiency Cu2ZnSnS4 solar cells enabled by modifying the heterojunction interface chemistry

2019 ◽  
Vol 7 (48) ◽  
pp. 27289-27296 ◽  
Author(s):  
Kaiwen Sun ◽  
Chang Yan ◽  
Jialiang Huang ◽  
Fangyang Liu ◽  
Jianjun Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Buffer Layers ◽  
High Concentration ◽  
Interface Chemistry

ZnCdS buffer layers deposited from high concentration ammonia enable a less defective interface and over 10% efficiency Cu2ZnSnS4 solar cell.

Sign in / Sign up

Export Citation Format

Share Document