Materials for Dye Sensitized Solar Cells

IRASOL and its partner labs have long experience with high efficiency dye sensitized solar cells (DSSC) and have developed various materials and electrodes suited for research in the field of DSSC.

TiO2: TiO2 Paste- Transparent | TiO2 Paste- Reflector Anatase | TiO2 Paste- Reflector Rutile | TiOPaste- Reflector Rutile@SiO2

Electrolyte: Standard iodine-based | High performance iodine-based | Low volatility iodine-based

Electrodes: TiO2 blocking layer electrodeZnO blocking layer electrode | Transparent meso-TiOelectrode | Transparent/Reflector TiOelectrode | Pt electrode

Other pastes: Pt paste | Carbon paste

 

Nanocrystal TiO2 Paste – Transparent

 

 

 Ideal paste for meso-TiOdeposition

 

TiOnanocrystal paste contains nanocrystals with narrow range of size which form
a very uniform and transparent film of mesoporous TiO2. The paste can be applied as thick film by blade coating or screen printing for dye sensitized solar cells. For perovskite solar cells, the paste is first diluted and deposited as a thin film using spin coating. Thermal post-treatment is required after deposition. For thick films, a short ethanol vapor treatment helps level off the wet film. By thermal treatment, at around 100 °C the solvent is evaporated, at below 400 °C the binder is removed and at >500 °C nanocrystals are sintered into a sufficiently good conductivity film.

 

 

Nanoparticles: TiO2 – Anatase

Particle Size: Around 20 nm

Concentration: 18%

Physical Form: Paste

Color: Cream

Storage: 2-8 °C

 

 

Packaging and Order Number

 

PST-20T-1G

1 g

 

PST-20T-5G

5 g

 

PST-20T-10G

10 g

 

PST-20T-20G

20 g

 

 

 

Contact for price

 

 

TiO2 Paste – Reflector Anatase

 

 

Paste of anatase TiO2 particles for reflection layer of DSSCs

 

This type of TiO2 paste contains relatively large anatase TiOparticles, formed as a paste using a solvent and binder. The size of particles is larger than 100 nm and produce high light reflection, which is required for a reflector layer in dye sensitized solar cells. The paste can be applied by blade coating or screen printing. By thermal treatment, at around 100 °C the solvent is evaporated, at below 400 °C the binder is removed and at >500 °C nanocrystals are sintered into a sufficiently good conductivity film.

 

 

Nanoparticles: TiO2 – Anatase

Particle Size: >100 nm

Concentration: 28 wt%

Physical Form: Paste

Color: White

Storage: 2-8 °C

 

 

Packaging and Order Number

 

PST-300A-1G

1 g

 

PST-300A-5G

5 g

 

PST-300A-10G

10 g

 

PST-300A-20G

20 g

 

 

 

Contact for price

 

TiO2 Paste – Reflector Rutile

 

 

Paste of rutile TiO2 particles for reflection layer of DSSCs

 

This type of TiO2 paste contains relatively large rutile TiOparticles, formed as a paste using a solvent and binder. The particles size distribution is broad, with typical size of about 300 nm. Rutile TiOhas higher refractive index compared to anatase TiO2, hence showing higher reflection of light. However, in dye sensitize solar cells the smaller bandgap of rutile may reduce the performance of device. The paste can be applied by blade coating or screen printing. By thermal treatment, at
around 100 °C the solvent is evaporated, at below 400 °C the binder is removed and at >500 °C particles are sintered. 

 

 

Particles: TiO2 – Rutile

Particle Size: Around 300 nm

Concentration: 28 wt%

Physical Form: Paste

Color: white

Storage: 2-8 °C

 

 

Packaging and Order Number

 

PST-300R-1G

1 g

 

PST-300R-5G

5 g

 

PST-300R-10G

10 g

 

PST-300R-20G

20 g

 

 

 

Contact for price

 

TiO2 Paste – Reflector Rutile@SiO2

 

 

Paste of rutile SiO2 coated TiO2 particles for reflection layer of DSSCs

 

This TiOpaste is essentially similar to rutile TiO2 paste, however, the rutile particles are coated using a thin layer of SiO2, in order to inhibit the electrical conductivity. In dye sensitized solar cells, a rutile@SiO2 reflector layer only shows optical effect, and due to being an insulator, plays no electrical role in the solar cell device. The paste can be applied by blade coating or screen printing. By thermal treatment, at around 100 °C the solvent is evaporated, at below 400 °C the binder is removed and at >500 °C nanocrystals are sintered into a sufficiently good conductivity film.

 

 

Particles: TiO2 –Rutile coated with SiO2

Particle Size: TiO2: 250-500 nm, SiOshell:70 nm

Concentration: 28 wt%

Physical Form: Paste

Color: White

Storage: 2-8 °C

 

 

Packaging and Order Number

 

PST-400RS-1G

1 g

 

PST-400RS-5G

5 g

 

PST-400RS-10G

10 g

 

PST-400RS-20G

20 g

 

 

 

Contact for price

 

Standard iodine-based electrolyte

 

 

DSSC electrolyte in acetonitrile

 

Standard electrolyte contains I/I3 redox in acetonitrile solvent. With this electrolyte high current can be obtained with dye sensitized solar cell devices. However, acetonitrile is a low boiling point solvent and suitable sealing of cell is required.

 

 

Redox couple: I/I3

Solvent: Acetonitrile

Additives: 8%

Physical Form: liquid

 

Packaging and Order Number

 

ELT-ACN-I-1ML

1 mL

 

ELT-ACN-I-5ML

5 mL

 

ELT-ACN-I-10ML

10 mL

 

 

 

Contact for price

 

 

High performance iodine-based electrolyte

 

 

DSSC electrolyte in acetonitrile/valeronitrile

 

High Performance electrolyte contains I/I3– redox in acetonitrile/valeronitrile mixed solvent. Adding valeronitrile reduces the volatility of the electrolyte and improves the stability of cells. 

 

 

Redox couple: I/I3

Solvent: Acetonitrile/valeronitrile

Additives: ~ 10%

Physical Form: Liquid

 

Packaging and Order Number

 

ELT-AV-I-1ML

1 mL

 

 

ELT-AV-I-5ML

5 mL

 

 

ELT-AV-I-10ML

10 mL

 

 

 

 

Contact for price

 

 

Low volatility iodine-based electrolyte

 

 

DSSC electrolyte in 3-methoxypropionitrile

 

This electrolyte contains I/I3 redox in 3-methoxypropionitrile solvent. This is a low volatility electrolyte and provides solar cells with high stability.

 

 

Redox couple: I/I3

Solvent: 3-methoxypropionitrile

Additives: 27%

Physical Form: Liquid

Packaging and Order Number

 

ELT-MPN-I-1ML

1 mL

 

 

ELT-MPN-I-5ML

5 mL

 

 

ELT-MPN-I-10ML

10 mL

 

 

 

 

Contact for price

 

 

TiO2 blocking layer electrode

 

 

Clear TiO2/FTO layers as starting electrodes of for dye and perovskite solar cells

 

In many types of solar cells, the first layer is a blocking layer which thoroughly covers the FTO substrate. A thin layer of TiO2 is the most commonly used blocking layer and the films are best deposited by spray pyrolysis. TiOblocking layer electrode is a Glass/FTO substrate deposited by a thin layer of TiO2.

 

 

Substrate: Glass/FTO

Coating: TiO2 thin film

Deposition method: Spray pyrolysis

Thickness: 50-70 nm

Color: Transparent

 

Packaging and Order Number

 

ELD-TBL-20

20

 

 

 

 

 

 

 

 

 

Contact for price

 

 

ZnO blocking layer electrode

 

 

Clear ZnO/FTO layers as starting electrodes of for dye and perovskite solar cells

 

In many types of solar cells, the first layer is a blocking layer which thoroughly covers the FTO substrate.  ZnO blocking layer electrode is a Glass/FTO substrate deposited by a thin layer of ZnO using spray pyrolysis.

 

 

Substrate: Glass/FTO

Coating: ZnO thin film

Deposition method: Spray pyrolysis

Thickness: <100 nm

Color: Transparent

 

Packaging and Order Number

 

ELD-ZBL-20

20

 

 

 

 

 

 

 

 

 

Contact for price

 

 

Transparent meso-TiOelectrode

 

 

A transparent meso-TiOlayer on FTO for DSSC facrication

 

Transparent meso-TiOelectrode contains Glass/FTO which is coated with several micrometer transparent layer of meso-TiO2. It is used to fabricate the photo-anode of dye sensitized solar cells. Before using the electrode it is recommended to heat the electrode at around 500 °C for a few minutes in a furnace.  

 

 

Substrate: Glass/FTO

Coating: meso-TiO2

Deposition method: Screen print

Thickness:  6-7 µm

Color: Transparent

Packaging and Order Number

 

ELD-20T-1

1

 

ELD-20T-5

5

 

ELD-20T-10

10

 

ELD-20T-20

20

 

 

 

Contact for price

 

 

Transparent / Reflector TiO2 electrode

 

 

A transparent /Reflector TiO2 double layer on FTO for DSSC fabrication

 

Transparent /reflector TiO2 film contains 5 µm of reflector TiO2  particles and 7 µm layer of TiO2  nanoparticles with average size of 20 nm, deposited on FTO glass.  The scattering layer increases light harvesting efficiency. This electrode can be used as a standard photo-anode to evaluate dye molecules, quantum dots, electrolyte and different cathodes for dye sensitized solar cells. Annealing at 500 °C is recommended prior to use.

 

 

Substrate: Glass/FTO

Coating: meso-TiO2 / Reflector Anatase TiO2

Deposition method: Screen print

Thickness:  10-12 µm

Color: White

 

Packaging and Order Number

 

ELD-TR-1

1

 

ELD-TR-5

5

 

ELD-TR-10

10

 

ELD-TR-20

20

 

 

 

Contact for price

 

 

Pt electrode

 

 

Pt nanoparticle layer on FTO as counter electrode of DSSCs

 

Platinum electrode containing Pt nanoparticles on FTO glass is applied as cathode for dye-sensitized solar cells. Note that annealing at 460 °C for 15 min is required prior to use.

 

 

Substrate: Glass/FTO

Coating: Pt nanoparticles

Deposition method: Screen print

Thickness: < 10 nm

Color: Light gray

Packaging and Order Number

 

ELD-PT-1

1

 

 

 

 

 

 

 

 

 

Contact for price

 

 

Pt Paste

 

 

Pt containing paste to deposit Pt nanoparticle electrodes

 

Pt paste contains H2PtCl6 as Pt source in a paste containing solvent and binder. The paste can be easily applied by blade coating or screen printing. After thermal treatment a uniform thin layer of Pt nanoparticles is formed on the surface. Conventionally, Pt paste is applied on glass/FTO substrate acting as counter electrode of dye sensitized solar cells with high electrocatalytic activity.

 

 

Pt source: H2PtCl6

Concentration: 0.3%

Physical Form: Paste

Color: light Yellow

Storage: Dark 2-8 °C

 

Packaging and Order Number

 

PST-PT-1G

1 g

 

PST-PT-5G

5 g

 

PST-PT-10G

10 g

 

PST-PT-20G

20 g

 

 

 

Contact for price

 

 

Carbon Paste

 

 

Carbon paste as a conductive electrode

 

Carbon paste contains graphite and carbon black as carbon source, and forms a paste using additives, binders in a solvent. The paste can be applied by blade coating or screen printing. By thermal treatment, at around 100 °C the solvent is evaporated and at below 400 °C the binder is removed.

 

 

Carbon source: Graphite, carbon black

Concentration of carbon: 20%

Physical Form: Paste

Color: black

Storage: 2-8 °C

 

 

Packaging and Order Number

 

PST-100C-1G

1 g

 

PST-100C-5G

5 g

 

PST-100C-10G

10 g

 

PST-100C-20G

20 g

 

 

 

Contact for price

 

 

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