so cool...awesome! u just sparked an interest in me for DSSCs.

Great Video.....I have been studying this stuffs in Silico for a year now , but I didnt have teh chance to see a real working DSSC so far...this video made it easier for me to see a real example ...Thanks

It is very nice presentation Professor. Thank you very much

14 year ago content and i'm watching it in 2024 🥲

That's a really nice video, thanks for share it. It really helped me!

great vid ! thanks for sharing

Great info thank you.....

Really useful video

Very crude, works well especially considering the cleanliness involved.

It's awesome. Can the cells be attached together, so that the output voltage is increased like connecting in series??

good job

You'd probably have to find a reseller for the glass. It is made by Pilkington in the US and Asahi in Japan in large quantities. We get it from a small company called Hartford Glass in Indiana, US.

@frostvectron Volume ratio is defined by molarity. I would suggest obtaining the compounds individually, then making the solution. The triiodide complex is in ethylene glycol, not water. Water will kill the cell. You need about ONE DROP of solution per cell.

Watching this in 2019. This cool and informative. What is the principle of this die cell

@manilaenglish Votlage is based on the cell (max around 500 mv). If you want to increase voltage, you need to wire in series. I would not make the cells larger than 25mm x 25 mm. After that, the current drops. Cost: I don't know on a per cell basis.

What about using graphene instead of the pencil lead followed with a catylist of peroxide or other high hydrogen content synthetic.

Thank you for the video. Do you have a detailed video about how to make a solid-state Dye sensitized solar cell? If not can you make one? Thank you in advance.

@manilaenglish You can encase the cell in Surlyn (like plastic wrap) an remove air, but oxidation is inevitable.

can the TCO glass that have been heated with titania paste be used again for another try of pigment sticking? Or in another words, can the TCO glass be used again if the first try is failed?

What disolvent did you use for the electrolite solution?

If the TiO2 is not sticking when heated, it is most likely due to the paste being too thick. If it flakes BEFORE being heated (but after drying) it is due to the paste being too thin.

@MrSolarenergy As long as the smaller cells are wired in series. Small cells are pretty much the only way to go to obtain any useful current.

What concertation is the nitric acid you are using for the paste?

@onlyjustice04 The resistance should be close to 0 ohm. Certainly not infinite, which is the other option. Yes, the cell needs to be sintered. If it is flaking/peeling even after sintering, I would guess that the paste was too thick.

great, - Thank You And Regards Frm Cologne

@frostvectron I would suggest chemistry labs or chemical suppliers. Iodine is hard to get a hold of these days. You can also buy the whole DSSC kit from the Institute for Chemical Education.

nice video but you did not show the part where the glass was coated .thanks for sharing

What would you estimate the $ / Watt to be with this type of cell? Also, will this same method / procedure work with larger pieces of conductive glass (1-2 feet square vs 1 inch square)?

@nabrams1 I am looking at Sigma Aldrich for the ingredients for the electrolyte solution. They have KI and iodine solutions in water in the concentrations you had specified. What was the volume ratio of 0.5M KI, 0.05M Iodine, and EG that was used? Thanks again!

Could you give us a list of the material you used to make this?

Can you please tell me how to measure the conductivity of a polymeric electrolyte?

@scum525 There are other methods, but the annealing is needed for this simple preparation.

wow this video is so good, thanks guys, but as i did with the other video you had uploaded before , i have the same question here too, please ,the titaniun doixide layer won't stick to the glas when i heat it up , can you help me please, it is a heatproblem or do i have a too think layer?

@kam03m: the titania layer, which is titanium dioxide, the stuff in sunscreen, has enough thickness to separate the glass plates from each-other. On a different note, the anthocyanin dyes absorb light energy and transfer it to the titania semiconductor layer, which then transfers it to the indium-tin oxide glass and to the rest of the circuit. The electrons return to the cathode, where they combine with the carbon graphite, which is oxidized and then reduced by the triiodide electrolyte. Just a

@pongsrim

2 жыл бұрын

without titania layer ,there never be solar cell

could i use a copper or brass backing instead of indium doped tin oxide glass?

Just knowing the voltage is not much use. What is the power output of the device?

@S1KRYD I'd guess

Can you please let me know the detailed procedure for the synthesis of redox couple. did you use ITO or FTO???

Does the electrolyte separate the two pieces of conducting glass completely?

@steven6chen polyethylene glycol is a solid at room temperature. Do you mean ethylene glycol? That is the solvent for the electrolyte.

@snnvxnr Pretty close. The electrons don't "combine" with the graphite. The carbon is a catalyst for the reduction of the triiodide electrolyte.

how can one get around the annealing stage so a layer could be sprayed on to a large pannel . my autobody oven will only cook to 210 degrees

Hi Neal, Thanks for the informative video. If I want to conduct more than one trial for this experiment, will I be able to reuse the TiO2 covered tin oxide glass for the next trials, or will I have to use a new piece of glass?

@qwe70177

6 ай бұрын

Hi, I think you need a new one since the dye from the fruit is already with the TiO2. But also, if you have done the project, did you use non-nano TiO2, or nano TiO2 P25? Or no P25? Thanks!

for the iodide electrolyte, can polyethylene glycol be used along with iodine and potassium iodide to make it?

Interesting. Can it br bigger to generate more power? Like in 50w solar panel is the on uo to what watts,?

do u just crush the berries and sieve it through to get the juice from the berries?

thanks for anwering my question, but what's the temp. i have to heat with so that it sticks ? is it about 500 celcius

What is the alternative chemicals to TiO2?. Can I use Al2O3, SiO3, Calcium Silicate or Aluminium Silicate?

The resistance on the wrong side should be infinite meaning there is an infinitely high resistance to electron flow. If the ITO glass is high quality, there is no contact resistance, or the multimeter is not very precise, than you will observe 0 Ohms rather than 20-30.

What happens if I use Mn doped ZnO in stead of TiO2?

This has probably been asked before, but where can you get conductive glass? I'm in Sydney Australia ..

Ok, so the excited electrons are injected into the conduction band of the Ti02 then they move towards the black alligator clip because of the electrical field created by the depletion region in the electrolyte. They are suppose to travel through the multimeter then recombine with the electrolyte completing the circuit. But since the both conducting sides of the glass are touching each other why doesn't the electron follow the path of least resistance and jump directly to the cathode?

How long will these last?

Can a lime , potato , grapefruit , or tomato work as well ?

hey can i use tincture of iodine solution instead of tri iodide solution

@kavinash85 This should work in theory (same iodide complex), but there is probably too much water in the tincture for it to work.

@Riserna 0.5M KI, 0.05M I2 in ethylene glycol.

hi i'm an IB student in Namibia, and I was wondering if I get the materials with assistance from a teacher, can this be used as a chemistry project for solar energy? just to know if it's possible?

I do not see any errors with this portion. Please elaborate.

@nabrams1 Hi, I was wondering where I can get the KI and Iodine in EG? Can you point me to a source? Thanks so much.

Generally, annealing at 400-450 degrees C will suffice.

How you know how long is the useful life of a cell ??

Can we use ethanol instead of isopropanol?

God Day I can not find electrolyte. Where did you find electrolyte. Is there anything else i can use instead electrolyte?

i used methylene blue for dying but my cell dont work. it is getting short. pls help

Depends on the project. Please be more specific.

anybody can explain what redox electrolyte he is using? plzzzzz

Can I use red grapes instead of balckberry?

Sir How long it can be used

What is the function of the dye

Usually 400 C.

@psicodelio in Soviet Russia blackberry plants are solar cells.

I would not expect the cell to dry out since the redox electrolyte is made using ethylene glycol. Instead, I would think the anthocyanin dyes oxidized, turning the cell a brownish color. If it turned completely white, either the redox electrolyte was not correct or the cell was exposed to a large amount of heat and UV light.

plz help me out :-( ..no working on my cell...can i get a result if i use eggplant,red grapes,Red Spinach...how can i prepare appropriate electrolyte solution??? & any difference has between titania & titanium di oxide??? plz reply me asap ..plzz

Only TiO2 will work, maybe ZnO. The oxides you mention are not semiconductors.

so did he just use titanium dioxide and nitric acid to make the titanium paste???

okej thanks for helping

Hi Mr. Abrams! Is the second piece of glass coded in graphite also a piece of fluorine-droped tin oxide glass or just a normal piece of glass?

@poojabhardwaj5955

6 жыл бұрын

that is also FTO

is there any simulation for this solar cell?? anyone

Try LCD screen from laptops...

How to scale up?

How much voltage would it give in the presence of sunlight ?

@acidicjello1962

6 жыл бұрын

Mine reached 261 mV in the evening sun

How do you make sure that the titanium dioxide coating doesn't shatter when the dye is applied?

@czechoslovakia1000

7 жыл бұрын

heating bro.. heating

@bobmarley9504

7 жыл бұрын

It worked, thanks!

sir i want work on new materialhelp me to choose material

Titanium dioxide (titania) w/small amts of nitric acid for mixing fluorine-droped tin oxide glass berry juice (raspberry or blackberry) redox electrolyte (iodine, potassium iodide, ethylene glycol) Scotch tape for making borders

What are the materials

where do I get the Titanium dioxide and the conductive glass

@maoanz

8 жыл бұрын

+Seni Yusuf Let me know if you want some TCO glass, we have a big production in China.

@seniyusuf1056

8 жыл бұрын

+Maoan Zhou I just got the Titanium dioxide but I still don't have a conductive glass

@chuckfaber7521

8 жыл бұрын

Try ordering from ice.chem.wisc.edu/. They sell the materials pretty cheaply.

I know this is an old post, but how hot should my hot plate be?

This dude funny😂😂😂

Why doesn't the conductive glass create a short when it is in contact with itself?

@piotrl.8120

10 жыл бұрын

Because they are not in contact. Its a thin film (tape) around the dyed area.

@olof1

9 жыл бұрын

+Piotr Lichograj Isn't the tape removed after the TiO2 is added to the glass? Or does he just not mention that he leaves some behind?

@czolgistaXS

9 жыл бұрын

+Olof Enström There should be a space to avoid a short circuit. In our research we are using a carbon disk from Floppy Disk or simple transparent tape.

Why make a paste with nitric acid?

gimme a break . . . how do I get conductive glass?

@theonewhoknocks4063

7 жыл бұрын

it is commercially sold. search for FTO or ITO glass substrate/slide

هل يمكن استخدام التوت الازرق ؟

i created 12 small dssc and none of them work, i used strawberry, red cabbage, green leaves, and carrot dye, any help?

@chuckfaber7521

8 жыл бұрын

Did you try blackberry, blueberries, or raspberries? Apparently they are the ones with anthocyanins which are really good at transferring electrons from the Iodide to the TiO2. Green leaves should do something but may not have have as great of an effect. I heard strawberries just don't work for some reason.

@comg6654

8 жыл бұрын

+Chuck Faber Thanks for The reply! I actually tried again with mulberries, eggplant, strawberry, spinach with carbon coating instead of titanium and different titanium dioxide. And it worked! somehow, eggplant and spinach somehow generated quite a lot of electricity, but mulberry obviously had the most

Anybody know where to get the material, The glass, Tio2, and redox electrolyte. I went to home depot and they didn't have it anyone knows if there is a store like that, I don't want to order the materials online.

@piotrl.8120

10 жыл бұрын

TiO2 (E330) is adding to food , for example cottage cheese. Its normally avaiable in chemistry store (the best form is anatase). Redox electrolyte you can make using iod in potassium iodide mixing in glycol ethylene. The problem is the ITO or SnO2 glass. I can make it in a magnetron sputtering machine. The electrode must be transparent and conductive, it can be made chemically. It's not simple to make this cell at home without intermediate components. It's hard to check the efficiency of this battery. On this film they show only Voltage. But how about current ? If you want to make a battery only for an experiment, use a citric acid as an electrolyte (saturated solution in water). It can produce about 0,7 V , but the current is relatively low (about 0,5 mA) per 1 cm2 area of DSSC. Remember that preparation of each part of the cell has a strong importance to achieve a satisfactory final result.

@AlainIblex

10 жыл бұрын

Piotr Lichograj E330 use C6H8O7 and no TiO2 on it

@czolgistaXS

9 жыл бұрын

+Alain Iblex E171 of course ;) . I was mistaken.

The project like this step by step is described on the Avasva website and many more plans you can find on that website.

Tell me about recent topics in dssc

Can anybody tell me if these cells will continue to work in the long term? I'm looking to make one of these on a larger scale to power a small fish tank, and I need to be sure that it will hold up for months at a time. If they don't last, is there any way to extend their lifetime?

@MarkDeAwesome

7 жыл бұрын

Yes, there are ways to extend the lifetime of cells (most likely by creating a fully enclosed DSSC), but the cell made by this person will not produce the same output for very long because the dye on the titanium(IV) oxide will decompose when not supplied with an electron by the iodine solution. The iodide solution can evaporate and cause the electrons to not reach the dye molecules at the same initial pace.

@webguyz1

2 жыл бұрын

​@@MarkDeAwesome What about adding a polymer stabilizer? maybe embed the pigment in a sheet of plastic instead too

I made it by myself. I used Avasva solutions for that.

Wear gloves.

@thomaslewis6829

5 жыл бұрын

Wear gloves.

@mustafashehzad5438

5 жыл бұрын

wear gloves pls!

@ronrj1359

5 жыл бұрын

Legend dont wear gloves

@dtriplett03

4 жыл бұрын

He’s a Professional!....🤓

@rishitpandey4470

3 жыл бұрын

Wear gloves