Requires Subscription: Photovoltaics International Archive

Photovoltaics International Volume 39

Share on facebook
Facebook
Share on twitter
Twitter
Share on linkedin
LinkedIn
Share on reddit
Reddit
Share on email
Email

Welcome to the thirty-ninth edition of Photovoltaics International. We go to press just a few days after the conclusion of our PV CellTech conference in Penang. The focus for all the PV CTOs, chief scientists, materials providers, equipment manufacturers and others gathered for the summit was how to keep pushing the industry towards a standard 20% efficiency while also expanding in scale. That expansion ought to be 100GW in three years if demand is to be met, according to one speaker.
CEA-INES researchers look at the benefits of exploiting the symmetrical a-Si/c-Si/a- Si structure of silicon heterojunction cells to use ultrathin wafers.
Another innovation that delivers materials savings is of course diamond wire sawing and, again, scale and efficiency are dual drivers. Here, CEA demonstrates the need for, and processes involved in, closely monitoring the cutting process to ensure wafer quality is consistent and productivity can remain at the desired level.
We look at different sides of bifacial technology (pun intended) starting with JinkoSolar’s appraisal of its mono PERC bifacial cells built using standard production technology and racking up average efficiencies of 21.8%.
Away from the crystalline silicon world, German research firm OPVIUS explores how a combination of printing methods could open the door to freeform PV modules, unleashing an entirely new suite of product options and applications.
ECN Solar reveals the results of an industrial-scale trial process to develop an n-type bifacial IBC solar cell that is based on tube diffusion and a simultaneous single-step screen-print of contacts at both polarities.
Last but not least, CSEM looks at the impact the emerging diversity in cell technology and module architecture is having on metrology.

L3dwLWNvbnRlbnQvdXBsb2Fkcy9sZWdhY3ktcHVibGljYXRpb24tcGRmcy83ZTE0MzJhZDg1LXBob3Rvdm9sdGFpY3MtaW50ZXJuYXRpb25hbC12b2x1bWUtMzkucGRm

In this issue...

Photovoltaics International Archive
Market Watch, Photovoltaics International Papers
The in-house market research team at PV Tech, this journal’s sister website, has developed a new model for forecasting trends in polysilicon consumption by the solar industry. This article analyzes how, based on this new model, the industry’s use of polysilicon will dip below 4 grams per watt by the end of this year.
Photovoltaics International Archive
Photovoltaics International Papers, Thin Film
To realize power generation everywhere, customers and designers are eager for PV solutions offering total design freedom for seamless integration into everyday life. This trend becomes even more important if the ‘mega city’ development is taken into account: more and more people will live in city environments in the future while classical PV technologies do not offer proper solutions for this context.
Photovoltaics International Archive
Market Watch, Photovoltaics International Papers
Following an extensive research process, we can now reveal the top 10 module suppliers (by shipment volumes) for the calendar year 2017. The final listing – and the underlying numbers – confirms the trends of recent years and the continued dominance of our self-penned ‘Silicon Module Super League’ (SMSL) group.
Photovoltaics International Archive
Fab & Facilities, Photovoltaics International Papers
PV manufacturing capacity expansion announcements in 2017 far exceeded the three preceding years, despite the significant slowdown in new plans in the third quarter. The year was dominated by c-Si solar cell expansion plans and the return of CdTe and CIGS thin-film activity – the highest seen in many years. This quarterly report reviews the fourth quarter activity as well offering a full-year review and analysis of a record year across all segments of upstream manufacturing.
Photovoltaics International Archive
Cell Processing, Photovoltaics International Papers
We present an n-type bifacial IBC solar cell that uses a simple process comparable to our industrially proven n-type cell process for conventional H-grid front- and rear-contacted n-PERT cells. The process is based on tube diffusion and a simultaneous single-step screen-print of the contacts to both polarities, and has been demonstrated on an industrial line at pilot scale.
Photovoltaics International Archive
Cell Processing, Photovoltaics International Papers
Relatively few experimental and academic studies about bifacial p-type PERC cells have been published to date. This paper looks at the experimental findings from JinkoSolar’s large area, industry-grade bifacial monocrystalline silicon PERC (biPERC) cells.
Photovoltaics International Archive
Photovoltaics International Papers, PV Modules
The market for commercial crystalline silicon (c-Si) solar modules has been ruled for decades by the well-established ribbon-interconnected Al-BSF solar cells, making their metrology and in particular the current-voltage measurement well defined and reproducible.
Photovoltaics International Archive
Materials, Photovoltaics International Papers
Major progress has been made in the PV industry in the last five years as a result of the extensive use of diamond wire during silicon wafering operations. Productivity has increased and costs have fallen to the point where the price of a monocrystalline wafer cut with diamond wire is approaching the price of a multicrystalline wafer cut using slurry.
Photovoltaics International Archive
Photovoltaics International Papers, PV Modules
Bifaciality can be implemented by varieties of architectures for solar cells, modules and in addition there are even many more applications on system level. This makes bifaciality a complex technology. Currently there is some confusion in the PV community what bifacial gains can be expected and how these transfer to the cost reduction and lowering the LCOE of the system. In this article we will describe how bifacial gains are defined, what bifacial gains can be expected and what this means for real applications.
Photovoltaics International Archive
Cell Processing, Photovoltaics International Papers
Because of its symmetrical a-Si/c-Si/a-Si structure, silicon heterojunction (SHJ) cell technology offers the possibility to use much thinner wafers, and thus to reduce material and production cost. In order to evaluate the industrial feasibility of these thinner heterojunction cells, wafers from the standard thickness of 160μm down to 40μm were processed on the heterojunction pilot line at CEA-INES.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
February 1, 2022
London, UK
Solar Media Events
February 23, 2022
London, UK
Solar Media Events
March 23, 2022
Austin, Texas, USA
Solar Media Events
March 29, 2022
Lisbon, Portugal

PV TECH POWER VOLUME 29 OUT NOW—Get 35% off your first year

Solar’s 2030 blueprint