恭喜

在官网，就可以看到你需要的信息了。

Short Communications (Letters) are intended as brief reports of significant, original and timely research results on the science, applications and processing of materials which warrant rapid publication.

There is a strict four-page limit to printed articles. Manuscripts must not exceed 2000 words plus three figures and one table.

This includes everything: the title, authors, affiliations, abstract, keywords, body of the manuscript, acknowledgements, references, figure captions, etc. The maximum number of figures is strictly limited to five. If the maximum of 4 figures is used, then the total number of words must be reduced to 1800. If the maximum of 5 figures is used, then the total number of words must be reduced to 1600. If more than 5 figures are used, the manuscript will be rejected. The manuscript submitted for review should not exceed 8 pages (including title, abstract, references, figures, tables and figure captions).

Short Communications need to report a concise but exhaustive Material and methods section included in the main text.

Featured Letters: A Call for Papers

Featured Letters are invited only contributions to Materials Letters. They are short but authoritative reports of the state-of-the-art in a scientific field, without becoming as exhaustive as classical review papers，

如果楼主投Featured Letters文章是需要约稿invite的。