Dear Jok,

Summing the above answers, the FTO has the following advantages over ITO:

-It is more transparent

- It has lager conductivity

- It is more stable against heating and environment

- Indium can diffuse to the adjacent layers altering their characteristics

- it is less expensive

Please follow the link for more information according to the vendor data:http://www.sigmaaldrich.com/materials-science/material-science-products.html?TablePage=106837645

best wishes

My answer is same as my answer in the link below:

Which type of glass is best for Perovskite Solar Cell, ITO or FTO coated? - ResearchGate. Available from: https://www.researchgate.net/post/Which_type_of_glass_is_best_for_Perovskite_Solar_Cell_ITO_or_FTO_coated#58ca6488404854b4f575862d [accessed Mar 16, 2017].

As far as I know, it often comes down to price and how smooth you need the surface to be. From memory, FTO is generally cheaper but has a greater surface roughness than ITO.

Rob

thanks, but which is better for better efficiency perovskite?

Thank you Fadi.

Usually FTO is more suitable for solar cells than ITO due to its better visible light transparency

Thank you Jianlin Chen!!

Thank you Ahmed!

Choice of FTO glass or ITO glass is preferable by its work function and smoothness of the surface. Both have different temperature susceptability also. Lower work function TCO glass is generally prefarable but Indium is rare material and ITO glass is costly as compared to FTO glass.

Lot of useful information is already added, however, along with cost it also depends on what temperature you are going to use. I have myself confirmed that the resistance of ITO increases by heating to 500C (such as 16-18 ohm before and upto 120 ohm afterwards), and high temp is required for most of TiO2 based systems. In such a case FTO will be the best choice, as most of researchers do for perovskite.

Thanks Hammad, for your good experiences. all the best PCE also obtained from FTP based systems.

 Hi Fadi Aldibaja

Why people are using ITO rather than FTO  in the case of inverted structure?

Hi Jok Eshen,

ITO films have low thermal stability as compared to FTO films.so mostly researchers uses FTO for better thermal stability. FTO hole-injecting electrode results in more light produced at a given voltage than for ITO,Also In the visible region, the optical transmission of  FTO is high (»90 %) and independent of the fluorine doping which concludes that it is most suitable for perovskite solar cell fabrication. One of the most important characteristic of this particular FTO is that the surface is very flat, as studied by AFM, in contrast to the surfaces of various ITO electrodes, which can have very high degrees of roughness.

Dear Jok,

Summing the above answers, the FTO has the following advantages over ITO:

-It is more transparent

- It has lager conductivity

- It is more stable against heating and environment

- Indium can diffuse to the adjacent layers altering their characteristics

- it is less expensive

Please follow the link for more information according to the vendor data:http://www.sigmaaldrich.com/materials-science/material-science-products.html?TablePage=106837645

best wishes

My answer is same as my answer in the link below:

Which type of glass is best for Perovskite Solar Cell, ITO or FTO coated? - ResearchGate. Available from: https://www.researchgate.net/post/Which_type_of_glass_is_best_for_Perovskite_Solar_Cell_ITO_or_FTO_coated#58ca6488404854b4f575862d [accessed Mar 16, 2017].

ITO films have a transmittance of over 80%

and sheet resistance 18Ω/cm2, while FTO films exhibit a

transmittance of about 75% in the visible region and sheet

resistance of 8.5/cm2. Sima et al. conducted a study to

compare FTOand ITO basedDSSCs. Photoanodes based

on FTO and ITO glass substrates were sintered at 450∘C

for 2h in an oxygen atmosphere.They found that the sheet

resistance of FTO remained constant, while that of ITO

increased from 18Ω/cm2 to 52Ω/cm2 upon sintering. [https://www.researchgate.net/publication/273497154_Recent_Advances_in_Dye_Sensitized_Solar_Cells]

Article Recent Advances in Dye Sensitized Solar Cells

FTO!

Advantages :

The conductivity of FTO is better.

Indium is much more pricy than fluorine.

ITO electrical properties can be degraded in presence of oxygen at relatively high temperature (i.e. around 500 °C), while FTO is much more stable in such conditions.

Chemical inertness

High tolerance to physical abrasion

Disadvantage:

FTO has greater surface roughness