Trident Solar, a Brookfield, Conn.-based provider of industrial piezoelectric inkjet printheads and inks, has developed two new inkjet product offerings for solar applications – a new single-step jettable material that performs as both an etchant and dopant, and an industrial inkjet printhead.
The etchant-dopant material is used as a precursor to the screen printing of contacts. This efficient and effective removal of the anti-reflective top layer allows for maximum contact between silver contacts and silicon, according to the company. The product then works as an n-dopant as it penetrates the silicon emitter directly below the contacts.
The inkjet printhead features a one-year lifetime and high-precision performance, with contact line widths as narrow as 50 microns, Trident says. Unlike alternative inkjet printheads that are adapted from graphic applications, the industrial inkjet printhead is specially designed for optimum performance in non-contact printing of a wide variety of acid and alkaline etchants and conductive materials for direct-write, printable PV production processes.