Digital Photonics offers scalable route from lab to fab for selective emitter processes

Facebook
Twitter
LinkedIn
Reddit
Email

The Digital Photonics Corporation (DPC) has launched the ‘SolarJet’ printer for selective emitter application of solar front contacts (c-Si). The SolarJet printer is claimed to simplify offline process feasibility by making it possible for labs to quickly, accurately and cost-effectively gauge real world performance benefits before making larger in-line investments. Once feasibility is confirmed, the system can be easily scaled up for larger print runs. The system features inkjet components from Trident Solar generating enhanced efficiency and reduced scrap rates.

Problem

This article requires Premium SubscriptionBasic (FREE) Subscription

Unlock unlimited access for 12 whole months of distinctive global analysis

Photovoltaics International is now included.

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Unlimited digital access to the PV Tech Power journal catalogue
  • Unlimited digital access to the Photovoltaics International journal catalogue
  • Access to more than 1,000 technical papers
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

Taking selective emitter processes cost effectively and within the shortest timescales can be problematic due to the significant variances in lab to fab equipment. Providing a scalable and reproducible process path is required.

Solution

The SolarJet simplifies feasibility testing by allowing for scalable and highly indicative test runs. Wafers are fed from underneath along a conveyer belt (as in typical production runs) to provide accurate production simulation. Up to three separate photovoltaic materials (such as etchants, dopants and dielectric layers) can be deposited in a single run- further simplifying and speeding testing processes. The SolarJet has a vision capture system for quality control consisting of three distinct CCD cameras that monitor the dispensed droplets and resulting lines. The system ensures adjustments can quickly and easily be made to guarantee reliable, reproducible print quality. The SolarJet has a throughput capability of 30 wafers per hour with manual loading and up to 200 wafers per hour with the auto-loading system.

Applications

Selective emitter cell design precursor to screen printing of front silver contacts.

Platform

The SolarJet system is the first in the industry to use the new ‘VersaEtch’ Etchant / n-Dopant combination material from Trident Solar as a precursor to screen printing of front silver contacts. The SolarJet printer also contains multiple inert, stainless steel Trident 256Jet-S printheads. The printheads also feature a unique repairable design – that allows the nozzle plate to be disassembled, ultrasonically cleaned and reassembled. These features allow the 256Jet-S printhead to last up to 5 times longer than alternative inkjet printheads and provide an industry leading one year warranty.

Availability

May 2012 onwards.
 

Read Next

February 11, 2025
Located in the solar hotbed region of Atacama in northern Chile, the Domeyko project will have an 83MW solar PV capacity and 660MWh battery energy storage system (BESS) capacity.
February 11, 2025
US technology giant Microsoft has signed virtual power purchase agreements (VPPAs) for 389MW of solar capacity with EDP Renewables.
Premium
February 11, 2025
PV Tech Premium spoke with Alexia Ruvoletto, former head of the Solar Stewardship Initiative, about its supply traceability standard.
February 11, 2025
Auction prices awarded ranged from €0.0388/kWh to €0.0495/kWh, with an average volume-weighted price awarded at €0.0476/kWh.
February 11, 2025
The US solar industry was previously sanguine about Trump's initial tariffs, though the impacts of these metal tariffs are unclear.
February 11, 2025
New manufacturing capacity additions from Gautam Solar and Waaree, alongside Indian solar deployments crossing the 100GW threshold.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
February 17, 2025
London, UK
Solar Media Events
February 19, 2025
Tokyo, Japan
Solar Media Events
March 11, 2025
Frankfurt, Germany