Received Date: 10 May 2020; Revised Date: 25 May 2020; Accepted Date: 25 May 2020; Submission to First Decision (Days): 14. Three reviewers, minor revisions required, average 4–5 questions raised by each person, and the efficiency of reviewing and editing is very high. 10 days after submitting the manuscript, the opinions for revision were returned.

(1) Thank | xd_Wei

Submission on October 23. Two reviewers, one required a minor revision and one required supplementary experiments. Comments returned 10 days later and it was accepted on December 7. The speed was very fast indeed. The publication fee of 10,000 was still not cheap. I felt a bit unhappy that it seems to fall to Q4 this year.

(0) Thank | ZHANGSHAOBO

Received Date 27 April 2019; Revised Date 2 June 2019; Accepted Date 3 June 2019. Two reviewers. It was accepted after one major revision and a cost of 8600 yuan. It was with high editing efficiency and excellent submission experience. Submission recommended!

(21) Thank | 黑母大猪

MDPI's journals are all super fast. After two weeks, one reviewer requested minor revision and another major revision. We spent two weeks to perform new experiments and revise the, and then the paper was accepted after re-submission. The editors in China are only executive editor, and the decisions are made by editors outside China. The journal is in the development stage. The number of publications fluctuates around hundreds of articles every year. There are many good journals in crystal sciences, so it is probably difficult for this journal to compete with classic journals in crystals for high-quality manuscripts. The journal needs to have unique features. I hope the journal becomes better and better.

(17) Thank | crc@hust.edu.cn

Special Issue: Widespread Application of Advanced Nanomaterials, welcome for submission. Please contact the guest editor for discount if needed. Link as follows:
https://www.mdpi.com/journal/crystals/special_issues/6BY3KS7483

(0) Thank | 拖累大家

Journal Special Issue: Performance and Processing of Metal Materials
(https://www.mdpi.com/journal/crystals/special_issues/R33XWQQ88G)
Collecting articles on the performance and processing of metal materials.
Special issue offers discounts on publication fees, fast publication speed. For submission inquiries, please contact: wangzf_hit@163.com
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For application or submission inquiries, please provide the following information:
title:
abstract:
authorship: author names, email addresses, affiliations
approximate submission date:
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(0) Thank | w674142192

Hello, can we get in touch?

(0) Thank | 化学史小学僧

Have you published your article online? Why is it that this journal can only retrieve a single-digit number of articles each year? Why does it feel like a scam?

(0) Thank | 什么都用了

Can your article be searched on PubMed?

(0) Thank | 什么都用了

Do you guys know about this journal? It's so amazing, why can PubMed retrieve only single-digit articles every year?

(0) Thank | 什么都用了

It's okay, just don't include it in your resume in the future, and don't mention it when applying for projects. No one will know!

(0) Thank | cast_alloy

The current fee is 2600 Swiss Francs, which is nearly 21000 Chinese Yuan. It's quite expensive.

(1) Thank | 康康康搞科研

Journal-Special Issue Crystal Structure and Dielectric Properties of Ceramics; (https://www.mdpi.com/journal/crystals/special_issues/6OU9W8MX75), collecting articles on ceramic crystal structure, dielectric properties, synthesis, and device applications. Special issues can apply for layout fee discounts, publish quickly, and interested authors can contact directly: wang_toward@ahu.edu.cn
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If you need application or submission consultation, the following information can be provided:
title:
abstract:
authorship: author names, email addresses, affiliations
approximate submission date:
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If you do not need to apply for a discount, you can submit directly, and I will process it as soon as possible

(0) Thank | wang_toward

Journal - Special Issue Recent Advances in Additive Manufacturing of Metallic Materials: Characterization, Properties, and Modeling; (https://www.mdpi.com/journal/crystals/special_issues/Y15347B280), collecting articles related to the preparation, characterization, and properties of additive manufacturing materials. Special discounts on page fees are available for the special issue, with fast publication speed. If you are interested in submitting a manuscript, please contact: 125ren@163.com

If you need assistance with applying or submitting a manuscript, please provide the following information:
title:
abstract:
authorship: author names, email addresses, affiliations
approximate submission date:

If you do not need to apply for a discount, you can submit your manuscript directly, and I will process it as soon as possible

(0) Thank | 昨日

Hello! Are you an editor? Can I contact you directly if I have any questions?

(0) Thank | 竹林听雪2

Have you been hired by the big boss? How long does it usually take?

(0) Thank | Ctf.Geo

Boss, have you been hired? I heard someone say that the review comments are not good to reply to, but they are generally accepted. Is that true? Is it fast?

(0) Thank | Ctf.Geo

Welcome to submit contributions and inquiries!

(0) Thank | journal editor

Welcome to the Special Issue "Synthesis and Engineering of Optoelectronic Properties of Two-Dimensional Perovskites". For more details, please visit: https://www.mdpi.com/journal/crystals/special_issues/0GN4CRX7BZ. This Special Issue focuses on the synthesis of new 2D perovskites and the manipulation of their optoelectronic properties through the application of pressure, strain, temperature changes, magnetic fields, as well as simulations and calculations based on physical principles.

(1) Thank | wangwq

Journal-Special Issue: Environmentally-assisted degradation of metals and alloys; (https://www.mdpi.com/journal/metals/special_issues/environment_degradation). We collect articles related to the material service performance and corrosion research. Special discounts on page fees are available for this special issue. The publication process is fast. If interested in submitting a manuscript, please contact: marisa.guo@mdpi.com or sdwang@alum.imr.ac.cn.

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If you need to apply or inquire about manuscript submissions, please provide the following information for evaluation:

Title:
Abstract:
Authorship: author names, email addresses, affiliations
Approximate Submission Date:

(6) Thank | journal editor

Brothers, does anyone know where this coupon is? Or do we need to reply to the email?

(0) Thank | Accept。

I also don't think it's easy. I feel like I will be rejected. Wah wah wah.

(0) Thank | 我要发顶刊

The reviewers' comments can be found on the official website approximately two weeks later. The opinions of the two reviewers are particularly prominent, emphasizing the lack of innovation. One of the reviewers has two disagreements: (1) they believe that the characterization is below average and that TEM cannot accurately explain the problem. (2) They believe that the discussion is qualitative and does not explain the strengthening mechanism. The other reviewer mainly points out: (1) the innovation of this work cannot be reflected in the introduction and needs modification. (2) The discussion section is too thin and needs to compare more works to highlight its own work.

My own opinion is: I just want to spend money to get a graduate degree. These review comments seem to strictly adhere to Q2 requirements, which are completely different from what I have seen online.

Currently, it is still pending decision, which means there is a high possibility of rejection. In the previous comments, there were senior reviewers who said, "Only correctness matters, not innovation. Even screenshots of software can be published." I believe in that. However, I took my figures seriously and calibrated the TEM diffraction spots. I can only say that people are now very anxious. Has Crystals changed? It doesn't seem like the so-called "low-tier journal" is low at all.

(1) Thank | 增减反同

May I ask if I can apply for a waiver?

(0) Thank | 我要发顶刊

7000 is not expensive, now it is 14000.

(0) Thank | hwzhu@stumail.ysu.edu.cn