Shipment and VAT will be added to your order.
Please submit a quotation request to pay by bank transfer, recommended for large orders and VAT free orders (requires VAT number).
Our foil based electrodes cover a wide range of properties and functionality and in addition to the small selection of standard materials shown below we do offer manufacture of custom electrode designs. This is mostly for customers having special requirements i.e. inclusion of their logo, text or circuitry. In the custom case there is a minimum order quantity (MOQ) and tooling costs whereas for the standard foils there is no limit to the order quantity. We cover a large range of substrates and can also prepare electrode structures on custom substrates. Here we offer standard Flextrode substrates that are electron accepting electrodes for inverted polymer solar cells either semitransparent or reflective. We do also offer any part of the stack structure on request. This could for instance be a silver grid on its own or a hole accepting layer on its own or in combination with a silver grid.
The Flextrodes are extremely cost competitive compared to ITO and offer a complete and patterned electrodes structure. The cost of Flextrode on polyester foil is already cheaper than low grade ITO on polyester. It has to be borne in mind that Flextrode is already finally patterned at this cost and ITO would require patterning and printing of further layers to become electron or hole accepting. We also offer Flextrode on barrier foil with or without UV-filter and this offers an even higher degree of competitiveness over ITO as the barrier solution is fully integrated in the Flextrode. In comparison to ITO on polyester the cost of the barrier is additional and required extra processing steps with associated loss. With our Flextrode products ITO-freedom is finally here! Please contact us for further details at info@infinityPV.com.
Here we offer standard Flextrode substrates that are electron accepting electrodes for inverted polymer solar cells either semitransparent or reflective. We do also offer any part of the stack structure on request. This could for instance be a silver grid on its own or a hole accepting layer on its own or in combination with a silver grid.
Flextrode is a semitransparent flexible thin-film electrode, developed for use in printed optoelectronic devices such as displays, touch panels, solar cells, organic LEDs etc. Flextrode is developed as a substitute for the widely used but costly and environmentally unsound Indium Tin Oxide (ITO) electrode.
Flextrode employ little or no scarce elements, and is processed in the ambient atmosphere by energy- and cost-effective roll-to-roll processing. This set-up allows Flextrode to surpass the ITO electrode with respect to cost and environmental friendliness, and more important do so with an attractive and adjustable tradeoff between transparency and conductivity.
The electrode-active layer of Flextrode is applied on a PET substrate in a pre-defined, customer-specific pattern by roll-to-roll processing. The patterned Flextrode is therefore the perfect starting point for making polymer solar cells, both in series by roll-to-roll processing and as individual modules. The remaining layers of the solar cell stack, starting with the active layer, can be coated directly onto the Flextrode. If you use PEDOT:PSS as hole transporting layer, you might need to activate the pristine solar cell before use by switching. Switching is specific to PEDOT:PSS and is not necessarily required when other hole-conductors are used.
Please contact us for substrates available on stock: info@infinityPV.com
|Material||Polyester||Barrier w/o UV||Barrier with UV filter|
|Thickness (µm)a||125||~ 50-70|
|Available web width (mm)||100/152/305/510||152/305/510||152/305/510|
|Optical transmission @ 550 nm (%)b||>65% (full stack)||>65% (full stack)||>58% (w/o grid)|
|Optical transmission @ 1000 nm (%)b||40-50%||40-50%||40-50%|
|Optical reflectivity @ 550 nm (%)c||>85%||-||-|
|Optical reflectivity @ 1000 nm (%)c||>85%||-||-|
|Sheet resistivity (Ω □-1)d||50-100 (PEDOT:PSS); <30 (with Ag grid)|
|Sheet resistivity (Ω □-1)e||0.5-0.6||-||-|
|OTR (cm3 m-2 day-1)||-||0.01||0.01|
|WVTR (g m-2 day-1)||-||0.04||0.04|
aOther thicknesses available on request
bfor semitransparent superstrates
cfor reflective substrates (only on PET, continues stripes)
dfor semitransparent superstrates
efor reflective substrates (only on PET, continues stripes)
* Sample electrode layouts (further details on request)
- Reflective Ag electrodes only continuous stripes
- Specifications may vary
|Pattern||3 mm stripes||4 mm stripes||10 mm stripes||13 mm stripes||13 mm stripes|
|Other silver patterns||no||no||no||no||yes|
|Number of stripes||16||16||8||16||16|
|Web width (mm)||100||152||152||305||305|
Cost (€) on polyester
|1 m piece||20||30||38||72||84|
|500 m||2478||2894||3114||4320 (28 €/m2)||4626 (30 €/m2)|
Cost (€) on barrier
|500 m||3122||3652||3932||6210 (40 €/m2)||6792 (44 €/m2)|
Cost (€) on barrier with UV-filter
|500 m||3374||4014||4434||7102 (46 €/m2)||7686 (50 €/m2)|
We offer custom electrode designs for special requirements i.e. inclusion of logo, text, circuitry, etc. In the custom case there is a minimum order quantity (MOQ) and tooling costs, see table below. We cover a large range of substrates and can also prepare electrode structures on custom substrates.
Please contact us for custom orders and we will send you a quotation for your specific needs. Once the design and tooling cost have been covered we will keep the masters and future orders only cover materials and processing cost.
|Flexo tooling cost for grid structures (€)||1250|
|Rotary screen printing tooling cost (€)||2400|
|Slot-die tooling cost (€)||220|
|Typical design cost (flexo) (€)||650|
|Typical design cost (rotary screen) (€)||850|
|Typical design cost (slot-die) (€)||250|
|Custom foil||barriers, polyimide, PEN, plastic covered metal foil, metal foil, metalized plastic, TCO covered plastic foil, and possibly also your own foil provided that we can pretest|
Customers can obtain datasheets post-purchase by contacting us at info@infinityPV.com.
Flextrode in literature
Flextrode has been used by a number of groups and been featured in a long list of articles, see Further Reading below.DOI:10.1002/advs.201400002DOI:10.1039/C3TC31859ADOI:10.1002/ente.201200029DOI:10.1039/C3TA13524ADOI:10.1016/j.solmat.2012.09.008DOI:10.1002/adem.201300011DOI:10.1002/ente.201300057DOI:10.1016/j.orgel.2014.01.002DOI:10.1039/C4TC01252FDOI:10.1016/j.solmat.2014.06.031DOI:10.1016/j.solmat.2013.07.006DOI:10.1002/aenm.201400736DOI:10.1039/C5TC00781JDOI:10.1039/C4TA03484HDOI:10.1039/C4EE01222DDOI:10.1039/C4EE01223BDOI:10.1039/C3EE43212BDOI:10.1002/polb.23505DOI:10.1039/C4TC02877EDOI:10.1002/aenm.201402186DOI:10.1039/C5RA04336KDOI:10.1016/j.solmat.2015.04.007DOI:10.1002/adem.201300172DOI:10.1016/j.solmat.2013.06.029DOI:10.1117/1.JPE.5.057205DOI:10.1016/j.solmat.2015.01.030DOI:10.1002/ente.201402095DOI:10.1016/j.polymdegradstab.2014.07.013DOI:10.1016/j.coche.2015.03.001DOI:10.1002/ente.201402140