Recent content by tufnatufna

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    Properly Cleaning ITO Substrates for Organic Solar Cells

    Thank you, I also thought it was a problem. I got such recipe and it was a reason why I was doing that way.
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    Properly Cleaning ITO Substrates for Organic Solar Cells

    Hi Could anyone tell me the procedure for the cleaning ITO substrates for organic solar cells? This was my procedure, but I always had dirty spots on the glass and of course shortcuts in the cell. 1) cleaning in a deionized water + detergent (Hellmanex) mixture in ultrasonic bath (60...
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    How Can I Obtain Thin Films for DSC Analyses of P3HT PCBM?

    Hi I want to do DSC analyses of P3HT PCBM film (active layer of the solar cell), but I'm not sure how to obtain that thin layer separately from the substrate. You know that the containers for DSC are very small. I tried with drop casting but I think it's not the best way because I don't have...
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    Optical Source Modulation with a Chopper

    I have a question related to optical chopper, too. Why is the chopper used in dispersed infrared spectrometer?
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    Conductivity of Conjugated Polymers: 1D or P Type?

    Hi! I have a question related to conductivity of conjugated polymers. I found that they could become conductive if they're dopped with any other element. Is it 1D conductivity because I read that electrons are not so mobile between the chains of polymers in a bulk, but they are along a polymer...
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    Colloidal Synthesis of Nanoparticles: Get Answers Here!

    Thank You very much. This explanation is enough. I just wanted to be sure that there wasn't any so general description of the method.
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    Colloidal Synthesis of Nanoparticles: Get Answers Here!

    Could anyone tell me something about colloidal synthesis of nanoparticles in general? I have searched a lot and couldn't find any general explanation. Every text is written about some certain kind of nanoparticles and all of those methods are very different. Thank You!
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    Are Nanoparticles Considered Colloidal Systems?

    Hello everybody :smile: I'm not sure if this topic exists but I'm really confused about this thing :shy: I have to write some work about electrostatic stabilisation in nanomaterials and I read a lot but couldn't find anything directly related to nanoparticles. I found only electrostatic...
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