One-Pot Synthesis of the MoVO_x Mixed Oxide Nanobelts and Its Photoelectric Properties in the Broadband Light Spectrum Range Exhibiting Self-Powered Characteristics

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

The article requires improvement before moving forward; several suggestions are provided to enhance the manuscript quality.

1. The data arrangement, representation, and conclude are very poor, and the article cannot be accepted in its present form. Please refer to previous publications to understand how to effectively present and interpret photoresponse data.
2. Where is the spectral image of the devices?
3. There are too many figures in the manuscript, which makes it hard to read. It is suggested that most of the data can be concluded in one data point in the main, and the other data can be shifted to the supporting section. For example, Figures 26 and 27 can be plotted in such a way that the photocurrent is with respect to optical power for the main, and the raw data can be shifted in the supporting. The same for other data as well.
4. Figures 1 and 2 can be merged together.
5. There is no need of schematic 2 in the main.
6. The performance parameters of the devices should be calculated. The equation required for the calculation can be found in this article (Materials Science in Semiconductor Processing, 2023, 156, 107277).
7. Calculate the particle size using the SEM measurement and correlate it with the application.
8. Provide the thickness of the material; cross-section SEM.
9. The figure caption should be rewritten in detail.
10. In the manuscript, there is a discussion about the response changes under different power and bias, but it is limited; therefore, it should be expanded. The article (Materials Research Bulletin, 164 (2023), 112260) can be useful to fellows and cited.
11. A detailed analysis of the XRD measurement is recommended, including calculation of the crystallite size, dislocation density, and strain function.
12. The self-bias behaviour of the device is key to this work, but there are no details about why the device exhibits this behaviour. Additionally, the calculation of open-circuit voltage and short-circuit current is missing, which is crucial for this type of device. The article (Materials Letters, 368, 2024, 136708) can be useful to fellow researchers for the same discussion and to be cited.
13. Where is the rise and decay time calculation of the device?
14. Where is the power law fitting and the weaker trapping coefficient calculation?
15. A comparison table comparing this work to other self-bias photodetector work and highlighting the novelty of the work should be included. 

Author Response

Dear Sir,

Thank you for your comments. Your suggestion is excellent. Due to differences in emphasis, we have modified some questions. We have provided reasonable explanations for other questions. Detail discussion was added. Changes have been highlighted in the revision. Inspired by photodetectors and highly doped semiconductor materials, combined with the in situ preparation of nanocomposites in materials science, one-pot preparation of nanocomposites and exploration of their photophysical properties from a multidisciplinary perspective still has high scientific research value. Although many journals currently focus on hot topics, some journals still cover all aspects of their respective disciplines. Currently, there are many important research teams (Light-emitting, solar cells, photodetectors, etc) that have sufficient funding and equipment resources focusing on the solar cells and photodetectors. We have also been in contact with some of these teams. How dare we conduct research following these hot topics? It is difficult for us to follow these research directions, we can only do a little complementary research from multidisciplinary fields in combination with our own professional foundation and other material systems. Some of their ideas and performance characteristics have indeed inspired and influenced us. We have always wanted to learn from the researchers in these fields. The data from this study does not support the writing of a paper on high-performance photodetectors. Some key data from part of the Figures were summariseed into a table, and more discussion was added. The original Figures will then appear less cluttered.

 

 

Sincerely,

Xingfa Ma

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

Before publishing the manuscript, the following corrections are necessary:
1. The manuscript's introduction is very broad; however, it does not include relevant and outstanding information regarding what has already been published on the topic; it needs to be modified.

2. In section 3.2. Synthesis of MoVOx mixed oxide with one-pot, the experimental methodology needs to be further detailed. I suggest adding figures in addition to the process diagram that was added.

3. In the results, the authors present several studies showing that MoVOx materials can significantly improve NIR photoelectric sensitivity. However, they do not mention how the nanobeads could be adapted to equipment, such as a spectrophotometer.

4. In the results, explain what would happen if the amount of ammonium metavanadate were increased, and how would this affect its properties?

5. In Figure 1, explain the percentage of vanadium doping.

6. Label the % doping according to the amounts of ammonium metavanadate used.

Author Response

Dear Sir,

Thank you for your comments. Your suggestion is excellent. We have modified some questions. We also have provided reasonable explanations for other questions. Detail discussion was added. Changes have been highlighted in the revision. Inspired by photodetectors and highly doped semiconductor materials, combined with the in situ preparation of nanocomposites in materials science, one-pot preparation of nanocomposites and exploration of their photophysical properties from a multidisciplinary perspective still has high scientific research value. Although many journals currently focus on hot topics, some journals still cover all aspects of their respective disciplines. Currently, there are many important research teams (Light-emitting, solar cells, photodetectors, etc) that have sufficient funding and equipment resources focusing on the solar cells and photodetectors. We have also been in contact with some of these teams. How dare we conduct research following these hot topics? It is difficult for us to follow these research directions, we can only do a little complementary research from multidisciplinary fields in combination with our own professional foundation and other material systems. Some of their ideas and performance characteristics have indeed inspired and influenced us. We have always wanted to learn from the researchers in these fields.

 

 

Sincerely,

Xingfa Ma

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

Comments and Suggestions for Authors

Accept