Talk:Perovskite solar cell

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The original compared a perovskite cell without a back mirror with a GaAs cell with a back mirror saying that the former nearly reaches the latter. The efficiency limit in both cases being different, it was spurious to state "the perovskite cell without a back mirror nearly matches the GaAs limit with a back mirror".

Therefore: I've specified the spectrum, and made it clear the perovskite bandgap can be tuned to the ideal. This allows it to reach the maximum radiative efficiency in principle, for a bandgap of 1.35eV. The GaAs call however cannot, because its bandgap is slightly too high at 1.424eV.

The GaAs cell with a back mirror, however, can nearly reach the same as the perovskite solar cell with a back mirror, to wit 33%.

I think the GaAs cell does not belong here. However since it is mentioned in the reference, I have not removed it. Jpgcwiki (talk) 00:52, 20 December 2015 (UTC)

processing section

In my opinion the processing section reads as an advertisement for the cited articles. It is heavy on detailed descriptions of very special methods and does not provide an overview for the reader. I think this section should include a historical development of processing methods with citations of a view milestones that actually contributed to the development of more homogeneous films for high photovoltaic performance. In the current state it misses any concept, solution processing methods are mixed with vacuum vapor deposition etc. Razh Muur (talk) 12:42, 30 April 2016 (UTC)

Architectures

The sketch depicting different perovskite architectures should be changed as it uses wrong naming conventions for cathode and anode. The current version follows the naming convention of electrolytic cells (possibly adapted from dye-sensitized solar cells, at it is denoted as "sensitized perovskite solar cell"). However, as a thin film solar cell perovskite solar cells should follow the naming convention of classical pn-junctions. Thus, p-type contact is the anode and n-type the cathode. A nice overview can be found here: http://www.sc.edu/study/colleges_schools/chemistry_and_biochemistry/internal/research_groups/andrew_b_greytak/docs/which_is_the_anode_abg.pdf — Preceding unsigned comment added by Razh Muur (talk • contribs) 19:05, 30 August 2016 (UTC)

Also in "b) Schematic of a thin-film perovskite solar cell. In this architecture in which just a flat layer of perovskite is sandwiched between to selective contacts." to should be changed to two. — Preceding unsigned comment added by Kinzele (talk • contribs) 20:03, 3 July 2017 (UTC)

Out of date

With the potential of achieving even higher efficiencies and the very low production costs, perovskite solar cells have become commercially attractive, with start-up companies already promising modules and powerbanks on the market by 2017.[6][7][8] Dr. Universe (talk) 03:33, 17 December 2018 (UTC)

Please update with: "A piperidinium salt stabilizes efficient metal-halide perovskite solar cells"

Please update the article with info on this paper (it relates to longevity/stability of perovskite solar cells). It's included in 2020 in science like so:

Scientists show that adding an organic-based ionic solid into perovskites can result in substantial improvement in solar cell performance and stability. The study also reveals a complex degradation route that is responsible for failures in aged perovskite solar cells. The understanding could help the future development of photovoltaic technologies with industrially relevant longevity.

--Prototyperspective (talk) 22:06, 31 August 2020 (UTC)

References

Prototyperspective Could you add it yourself or do you have a conflict of interest? Chidgk1 (talk) 14:05, 20 November 2021 (UTC)

added to Climate Change project??

In what way is this article about climate change? There isn't a single mention or reference within it to climate change. This seems an inclusion without an actual basis. Anastrophe (talk) 19:33, 14 January 2021 (UTC)

Perhaps the Climate Change WikiProject could be modified to reference an outline of research into mitigation strategies, including solar cell energy conversion, as replacements for burning fossil fuels for electricity. Otherwise, how could the article merely be added to their project directly? I agree that the Climate Change WikiProject needs to organize knowledge - or effect the organization of knowledge within the Wikipedia projects (in various languages) so that the current knowledge (including knowledge about the state of technical R&D) they want to make accessible can be recognized 'topologically' as relevant to the concerns of their readership (perhaps most of whom are not electrical or chemical engineers). Members of the WikiProject Climate Change could suggest that on the Climate Change WikiProject's page.MaynardClark (talk) 17:39, 25 June 2021 (UTC)

Only just saw your comment as article not on my watch list - have added a mention. Chidgk1 (talk) 13:55, 20 November 2021 (UTC)

Top image is likely not perovskite solar cells

Opening the Wikipedia, I was surprised to see the leading image indicating a mass-produced perovskite solar cells. However,it seems to just be stock footage used by the video producer, as it was certainly not to do with what was being spoken about or the research in the lab. Someone should post what a "usual" device looks like, i.e. a fabricated device on a glass or flexible substrate. An image of factory-scale solar cell production might give a reader the false impression that perovskite devices are entering or close to entering the market. Rsfadia (talk) 22:41, 9 November 2022 (UTC)

@Prototyperspective no doubt knows more about this than I do as they uploaded the video. @Rsfadia Either of you could remove the picture if there is doubt Chidgk1 (talk) 12:30, 10 May 2023 (UTC)

Is this suitable?

Perovskite tin solar cell (13893069777)

Chidgk1 (talk) 12:33, 10 May 2023 (UTC)

Thanks for notifying editors about this. If it truly isn't a perovskite solar cell, it should be removed asap and the error also be corrected in WMCommons.

However, they do look like perovskite solar cells and the video suggests that they are. Maybe somebody else can clarify? It has been in the article for a while.

The image is not indicating this is a "mass-produced" one. Back when I uploaded it it was sad to see there's not even one image of solar cell despite the importance of this tech and lots of orgs working on it. Why is nobody thinking of publishing/uploading a CC BY version? The image Chidgk1 posted is the only exception but that doesn't look like common perovskite solar cells or how they'd look like (thin). I just a found a second image though on WMC and suggest a cropped out version of it is used if replacement is needed (on the right).

If this is just about An image of factory-scale solar cell production might give a reader the false impression that perovskite devices are entering or close to entering the market – I don't think that this is the impression the user gets from that, especially as it's clarified in the text. Images on Wikipedia very often give slightly false impressions simply because no better alternative image exists and it's useful for illustration. I don't know whether or not the suggested alternative image is better or whether there's some other CC BY image by now to upload to WMC. Prototyperspective (talk) 12:56, 10 May 2023 (UTC)

@Prototyperspective My thought was that, while the video was reporting on a notable research breakthrough regarding perovskites, they seemed to have been using some stock footage that wasn't related to the lab work they were reporting on...though I do concede it looks like thin film PV production.

I'd vote for the use of @Chidgk1's image, as that is how most R&D perovskite solar cells are fabricated, i.e. on thick glass substrates, or tandem on silicon PVs. This image from the DoE could be also be a good choice, as it is on a flexible substrate. Rsfadia (talk) 18:24, 10 May 2023 (UTC)

It indeed seems to be stock footage which is not CCBY albeit the video I took it from is licensed CCBY on youtube (and without naming/crediting the stock-footage). I requested deletion of the files. Thanks as well for that link – it seems like DoE images are public domain so I uploaded those three images to this WMCommons category that I just created: Commons:Category:Perovskite solar cells. Prototyperspective (talk) 22:23, 10 May 2023 (UTC)

Thanks guys - added pic as lead image and moved graph down as rather detailed and takes time to follow Chidgk1 (talk) 06:19, 11 May 2023 (UTC)

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Wiki Education assignment: Engineering in the 21st Century - Section 002

This article is currently the subject of a Wiki Education Foundation-supported course assignment, between 19 August 2024 and 3 December 2024. Further details are available on the course page. Student editor(s): Lasolway (article contribs).

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