Method utilizing carbon nano material to prepare dye-sensitized solar cell counter electrode
A carbon nanomaterial and solar cell technology, which is applied in the field of carbon nanomaterials being prepared as a counter electrode for dye-sensitized solar cells, can solve problems such as weakening electrochemical performance, and achieve the effects of simple method, low cost and high photosensitive efficiency
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Embodiment 1
[0015] 1) Weigh 200mg of lysozyme (LZ) and add it to 200ml phosphate buffer (PBS) to form a LZ / PBS solution; weigh 200mg of multi-walled carbon nanotubes and add it to the LZ / PBS solution, and use an ultrasonic breaker to Perform ultrasonic treatment for 30 minutes, with a power of 160W, to form a mixed solution of LZ / PBS / multi-walled carbon nanotubes;
[0016] 2) The above mixed solution was shaken at 37°C and 100rpm for 3h, then centrifuged for 15min at 6000rpm, and the obtained precipitate was washed 5 times with 10ml of phosphate buffer to remove excess unwrapped multi-walled carbon nanotubes. Lysozyme; dry the precipitate at 60°C for 24 hours to obtain functionalized LZ / multi-walled carbon nanotubes;
[0017] 3) Weigh 10mg LZ / multi-walled carbon nanotubes and mix them with 4ml methanol, and use an ultrasonic breaker to sonicate the mixed solution for 15min with a power of 200W; then add 6ml polyethylene glycol 400 to the above mixed solution, and use ultrasonic breaker ag...
Embodiment 2
[0021] 1) Weigh 2 mg of polyethylene glycol octylphenyl ether (Triton X-100) and add it to 10 ml of deionized water, continue to weigh 2 mg of arrayed carbon nanotubes and add it to the above solution, and use a sonicator to sonicate it Treat for 30 minutes, power is 160W, form Triton X-100 / array carbon nanotube mixed solution;
[0022] 2) Process the above mixed solution for 30 minutes at a speed of 5000 rpm, collect the uniformly dispersed suspension in the upper layer, and then dry it at 60°C for 24 hours to obtain functionalized Triton X-100 / array carbon nanotubes;
[0023] 3) Mix 10mg Triton X-100 / array carbon nanotubes with 2ml N,N-dimethylformamide (DMF), and use a sonicator to sonicate the mixed solution for 15min with a power of 200W; Add 6ml of polyethylene glycol 400, and use the sonicator to sonicate the new mixed solution for 15 minutes again, with a power of 200W, to form a Triton X-100 / array carbon nanotube / DMF / PEG400 gel solution;
[0024] 4) Centrifuge the ab...
Embodiment 3
[0027] 1) Weigh 10 mg of multi-walled carbon nanotubes and mix them with 4 ml of N,N-dimethylformamide (DMF). Use an ultrasonic breaker to sonicate the mixed solution for 15 minutes with a power of 200 W; then add 6 ml of polycarbonate to the above mixed solution. Ethylene glycol 400, again use the ultrasonic breaker to sonicate the new mixed solution for 15min, the power is 200W, to form a multi-walled carbon nanotube / DMF / PEG400 gel solution;
[0028] 2) Centrifuge the above gel solution for 20min at a speed of 7000rpm, pour off excess PEG400, invert and stand for 3h to collect the precipitate to obtain a black multi-walled carbon nanotube / PEG400 gel;
[0029] 3) Spread the above gel evenly on the FTO conductive substrate, raise the temperature to 250°C at a rate of 5°C / min and keep it for 30 minutes, continue to raise the temperature to 300°C and keep it for 60 minutes, then cool to room temperature to obtain the counter electrode of the dye-sensitized solar cell.
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