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polyethylene oxide PEO, dimethylformomide (DMF), sofligi 98% ethylene
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polyethylene oxide PEO, dimethylformomide (DMF), sofligi 98% ethyleneMachine Translated by Google carbonate (EC), sofliga 99% bulgan propylene carbonate (PC), we used tetrapropylammoniumiodide (TPAI) and iodine (I2) . Paint Ruthenium developed at the Supelco Analytical company in the USA We used Ru (Ruthenizer) 535. Alloys developed in Malaysia: purity 99.5% dissolved in ethanol (C2H5OH) pH=1 purity 69% acid sidan nitrate (HNO3) foidalanildi. A method of preparing DSSC solar cells. Photoelectrode preparation: Photoanodes are tin doped with fluorine made of oxide grown glass (FTO). 0.5 grams of titanium for this dioxide (TiO2 P90) is dissolved using nitric acid (HNO3) and FTO dripped. for 30 seconds to form a thin layer on the FTO It was rotated at a speed of 2350 rpm. After that, bake it in a muffle oven at 450 ÿÿ heated for 0.5 hours. After that titanium dioxide TiO2 P25 type nitrate acid is dissolved using HNO3, 0.1 g of polyethylene glycol PEG, 1-2 a drop of triton-X100 was added and smoothed as a 2nd layer. The mufil was heated at 450 ÿÿ using an oven. Preparation of gel polymer electrolyte (GPE). It is empty of electrolyte used in the production of elements. Gel polymer electrolyte (GPE) ni tayorlash uchun: polymethyl methacrylate (PMMA), iodine (I2) wa tetrapropylammonium iodide (TPAI) is dried under vacuum before use. Sungra, polymethyl methacrylate (PMMA) given 0.02 g, polyethylene oxide (PEO) dan 0.02g, ethylene carbonate (EC) dan 0.25g, propylene carbonate (PC) dan 0.25 g and 0.02 g of dimethylformamide (DMF), tetrapropylammonium iodide (TPAI) va iodine (I2) nor 1-jadvalda kursatilgan are prepared in quantities. First polyethylene oxide (PEO) and polymethylmethacrylate (PMMA) dimethylformamide (DMF) solvent bilan added in given amounts, the mixture is homogeneous at a temperature of 373 K mixed until smooth. Ethylene Carbonate (EC) is then added to the mixture and propylene carbonate (PC) is added in the given amount, and 1- in the table shown in quantities individually away Machine Translated by Google tetrapropylammonioiodide (TPAI) was added and stirred again at 373 K. A mixture home up to temperature bender to him iodine (I2) powder in the amount of 10% of tetrapropylammonium iodide (TPAI). join together for a few minutes until it reaches a single-sex state mixed up. The table below shows tetrapropylammonium in different electrolytes The compositional amounts of iodide (TPAI) and iodine (I2) are given: 1-table. The electrolyte is ionized by electrons from the electrode (cathode) in the photoanode It contains an oxidation-reduction pair to produce a dye should be visible [4-8]. Free for efficient charging the energy of the electrons corresponds to the Fermi level of the TiO2 layer need In this case I - /I -3
chosen for use in the electrolyte according to its advantages. [4-6,9]. The most commonly used electrolytes in DSSS are liquids, but Currently, these are gel polymer electrolytes (GPE) in solar cells. used [6,10-12]. Always polymer in the preparation of DSSC solar cells Electrolytes (GPE) use liquid electrolytes caused by corrosion of electrodes, evaporation of liquid electrolytes will get rid of such problems. Also GPEs with electrodes A solid polymer with good contact and ionic conductivity higher than electrolytes and polymer electrolytes of DSSC provides long-term physical and chemical stability. Free electrons in these electrolytes have the necessary energy in addition, the electrical conductivity and current density of the electrolyte Machine Translated by Google electrons that serve as increasing cations and in the element a large amount of free, which increases the potential to be formed The presence of electrons is essential for the optimal functioning of these solar cells is important for achievement. Preparation of contour electrode (cathode): copper doped with fluorine platinum (Pt) on the electrically conductive surface of oxide grown glass (FTO) A 1mM millimolar solution of in hydrochloric acid (HCl) is complete at 523 K cleaned along the surface. Add dye: 2.2 mg Ruthenizer 535 (ruthenium Ru) was added to 10 ml of ethanol (C2H5OH) and the prepared photoanode was added to it and Ultrasonic waves for 20 minutes in the "Starsonic 18" device mixed with the help of Electrolyte between photoanode and Pt - contour electrode (cathode) below DSSC solar by placing them between each other in a sandwich manner element is prepared. This is a schematic diagram of the element structure can be described as: glass/FTO/TiO2/Dye/ GPE/Pt/TiO2/mirror (Fig. 1). Machine Translated by Google Figure 1. Components of a DSSC solar cell. 1- FTO grown glass, 2- photoanode, 3- photosensitive paint, 4- electrolyte, 5- counter electrode (cathode). Download 111.96 Kb. Do'stlaringiz bilan baham: |
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