NovelGlass

Hello, I'm Materialscientist. I wanted to let you know that I removed an external link you added to the page Optical fiber, because it seemed to be inappropriate for an encyclopedia. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page, or take a look at our guidelines about links. Thank you. Materialscientist (talk) 23:04, 9 January 2013 (UTC)

Gallium lanthanum sulphide glass

Hello, NovelGlass, and thank you for your contributions!

I wanted to let you know it seems an article you worked on, Gallium lanthanum sulphide glass, is copied from another Wikipedia page, Gallium lanthanum sulphide. It's fine to do this as long as you provide the following information in the edit summary:

1. a link to the article you copied from
2. the date you copied it

You can do this now by editing the page, making any minor edit to the article, and adding the above information into the edit summary.

If you're still not sure how to fix the problem, please leave a message at the help desk. It's possible that I made a mistake, so feel free to remove the tag I placed on the article.

Thanks again for helping build the free encyclopedia! MadmanBot (talk) 12:50, 16 January 2013 (UTC)

Speedy deletion nomination of File:Gallium lanthanum sulphide glass.png

A tag has been placed on File:Gallium lanthanum sulphide glass.png requesting that it be speedily deleted from Wikipedia. This has been done under section F9 of the criteria for speedy deletion, because the image appears to be a blatant copyright infringement. For legal reasons, we cannot accept copyrighted images or text borrowed from other web sites or printed material, and as a consequence, your addition will most likely be deleted. Wikipedia takes copyright violations very seriously and persistent violators will be blocked from editing.

If you think that the page was nominated in error, contest the nomination by clicking on the button labelled "Click here to contest this speedy deletion" in the speedy deletion tag. Doing so will take you to the talk page where you can explain why you believe the page should not be deleted. You can also visit the page's talk page directly to give your reasons, but be aware that once a page is tagged for speedy deletion, it may be removed without delay. Please do not remove the speedy deletion tag yourself, but do not hesitate to add information that is consistent with Wikipedia's policies and guidelines. Stefan2 (talk) 14:48, 16 January 2013 (UTC)

Speedy deletion nomination of File:The covalent Ga2S3 crystalline network.jpg

A tag has been placed on File:The covalent Ga2S3 crystalline network.jpg requesting that it be speedily deleted from Wikipedia. This has been done under section F1 of the criteria for speedy deletion, because the image is an unused redundant copy (all pixels the same or scaled down) of an image in the same file format, which is on Wikipedia (not on Commons), and all inward links have been updated.

If you think that the page was nominated in error, contest the nomination by clicking on the button labelled "Click here to contest this speedy deletion" in the speedy deletion tag. Doing so will take you to the talk page where you can explain why you believe the page should not be deleted. You can also visit the page's talk page directly to give your reasons, but be aware that once a page is tagged for speedy deletion, it may be removed without delay. Please do not remove the speedy deletion tag yourself, but do not hesitate to add information that is consistent with Wikipedia's policies and guidelines. Stefan2 (talk) 14:58, 16 January 2013 (UTC)

Orphaned non-free media (File:CVD Ge-Sb-Te.jpg)

Thanks for uploading File:CVD Ge-Sb-Te.jpg. The media description page currently specifies that it is non-free and may only be used on Wikipedia under a claim of fair use. However, it is currently orphaned, meaning that it is not used in any articles on Wikipedia. If the media was previously in an article, please go to the article and see why it was removed. You may add it back if you think that that will be useful. However, please note that media for which a replacement could be created are not acceptable for use on Wikipedia (see our policy for non-free media).

If you have uploaded other unlicensed media, please check whether they're used in any articles or not. You can find a list of 'file' pages you have edited by clicking on the "my contributions" link (it is located at the very top of any Wikipedia page when you are logged in), and then selecting "File" from the dropdown box. Note that all non-free media not used in any articles will be deleted after seven days, as described on criteria for speedy deletion. Thank you. Hazard-Bot (talk) 04:15, 18 January 2013 (UTC)

CVD

I removed your contribution to chemical vapor deposition. Certainly you contributed this piece with the best of intentions but the contribution has several problems that I can briefly explain if you are interested. The overarching problem is that this encyclopedia article is not about research trends, but aims to give an overview of the practice of CVD. Wikipedia is not competing with technical journals. You seem to cite only research articles from one research group which violates rules we call WP:UNDUE (distorted perspective that would mislead reader looking for an overview). It is also possible, that you inadvertently have a conflict of interest. We often find that new editors arrive on the scene mainly to cite their research articles or those of colleagues, but such contributions are generally unwelcome (see WP:COI), even though it is done with good intentions. The final issue is that we prefer WP:SECONDARY sources (reviews and books, not journal articles), especially for an overview article like CVD, I think you'd agree. I would be glad to work with you on revising this article to broaden its scope to include chalcogenides. The only one that is prepared commercially is mercad telluride, I think. And even that stuff is mainly made other ways. But you might have sources that we could share and I could dig further into my sources. The greatest gap is the lack of information on SiO2 deposition and there is nothing on GaAs and its related doped derivatives.--Smokefoot (talk) 04:31, 18 January 2013 (UTC)