Manz Automation’s OneStep selective emitter system boosts cell efficiencies 0.5%

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

Product Briefing Outline: Manz Automation has developed the OneStep selective emitter (SE) system for crystalline silicon solar cells. Among competing SE processes, the laser process consists of only one single process step, without any consumable usage. Investment payback is said to be less than one year, while the small footprint allows easy retrofit of existing production lines. The tool is claimed to enable cell efficiency gains of up to 0.5%. 

Problem: One of the most prominent goals in the production of crystalline silicon solar cells is the reduction of the specific production cost per watt. One means of raising efficiencies is the incorporation of a selective emitter cell structure into industrial solar cell production, as it can increase solar cell efficiency due to enhanced blue light response, leading to higher short circuit current Jsc, and a reduced emitter saturation current density Joe, boosting the open circuit voltage Voc.

Solution: The OneStep system features one single additional process step, when compared with standard crystalline silicon solar cell production. This step is introduced between emitter diffusion and phosphorous glass (PSG) etch. Pulsed laser irradiation locally scans the wafer surface, forming highly-doped areas by local liquid-state diffusion of phosphorous from the PSG layer. After anti-reflection coating, the metallization grid is deposited on top of the highly doped areas. The local doping leads to a reduction of the specific contact resistance from silicon to metal, thus allowing for the use of lowly doped emitters with high sheet resistance.

Applications: c-Si production applying n-type emitters and front-side metallization as well as existing lines (retrofit).

Platform: Throughput: 1200 or 2400 wafers per hour (configurable); accuracy: ±10µm.

Footprint (including automation): 4.7 x 2.7m2. Fully automated and compatible with all established carriers. Efficiency gain up to 0.5% absolute.

Availability: Currently available.

10 November 2021
The solar tracker market continues to mature at breakneck speed, with designs and component selections becoming ever-more complex in the pursuit of better project economics. But a more simplistic design could deliver a triple benefit of lower Capex, EPC and Opex costs. This webinar will set out the ideal single axis tracker design for utility-scale solar farms. The design leapfrogs from decades of experience, with a comprehensive understanding and attention to the three cost structures of Capex, EPC and Opx. Sun and Steel Solar has prototyped a single axis tracker designed to deliver up to US$0.03/W in real savings compared to existing single axis trackers on the market. That’s US$30 million for every gigawatt deployed.
15 November 2021
The 10th edition of the famous Metallization and Interconnection Workshop, MIW2021, will take place in the Thor Central venue in Genk, Belgium, on Monday, November 15, and Tuesday, November 16, 2021 as a face-to-face meeting. We are longing for direct exchange of knowledge and ideas after a long time. Hopefully you can be part of it! But of course, the organizors will keep an eye on the evolution of the Covid pandemic. It will be assess carefully, whether the workshop can be held without major risks or excessive restrictions. We are looking forward to exciting talks, discussions and meetings and to welcoming you in Genk!
23 November 2021
The solar, storage and EV industries in the UK are going from strength to strength. There is no better place for the community to meet, share ideas and do business than Solar & Storage Live from 23-25 November at the NEC.There’s something for everyone; more than 150 exhibitors, a high-level conference, a start up and innovation zone, a poster zone, strategic partners to network with and much more. 
24 November 2021
In this webinar we will assess how these technical parameters and land characteristics can make a difference, in order to correctly make the choice between 1P or 2P trackers. There will be a comparison of the behaviour of Soltec’s 1P tracker, SFOne, and its 2P tracker, the SF7.
1 December 2021
Understand fully the technical and logistical supply chains that determine the production and performance of solar modules, including all related factors impacting quality, reliability & bankability. This event will be run online with streamed content, access to session recordings and chat/messaging tools for delegates to connect.
2 December 2021
Intersolar is the world’s leading exhibition & conference series for the solar industry. As part of this event series, Intersolar India in Mumbai is India’s most pioneering exhibition and conference for India’s solar industry. It takes place annually and has a focus on the areas of photovoltaics, PV production and solar thermal technologies. Since 2019, Intersolar India is held under the umbrella of The smarter E India – India’s innovation hub for the new energy world.

Read Next

October 27, 2021
More than half of utility-scale solar projects planned for next year could be at risk of delay or cancellation as a result of surging materials and logistics cost, new analysis has claimed.
PV Tech Premium
October 27, 2021
As prices rise and component availability remains tight, both solar’s upstream and downstream are rallying behind the common cause of ensuring which projects can go ahead, do go ahead in a timely fashion. Liam Stoker assesses the industry’s efforts to keep the supply chain moving forward.
October 27, 2021
Colombia has awarded contracts to 11 solar PV projects with a combined capacity of 796.3MW in its third renewable energy auction.
October 27, 2021
Microinverter supplier Enphase Energy reported record quarterly revenue in Q3 2021 but stressed the importance of price increases to help offset price volatility in its supply chain.
October 27, 2021
Spanish utility Iberdrola has expanded its investment in renewables and smart grid projects to €7.03 billion (US$8.15 billion) but its net profit suffered, falling 10.2% to €2.4 billion (US$2.78 billion), according to its recent financial results for 2021 release today.  
October 27, 2021
India installed around 8,811MW of solar between January and September 2021, a 280% increase on the same period of 2020, according to JMK Research & Analytics.

Subscribe to Newsletter

Upcoming Events

Upcoming Webinars
November 10, 2021
8am (PST) | 5pm (CET)
Solar Media Events
December 1, 2021