Optical Modelling of Planar and Fibre Perovskite Solar Cells

Round 1

Reviewer 1 Report

The authors describe in this paper the optical modelling of a mesoporous fiber perovskite solar cell (PSC). The study conducted by means of the transmission line method (TLM) and it is used to calculate the efficiency and short-circuit current density of the cell. The importance of choosing the thin film layers’ materials and the thickness is demonstrated and a possible improvement by the use of antireflection coatings is also considered.

The subject may attract interest to the readers, but I have few comments regarding the content, to increase its scientific value:

1. In introduction is missing two important elements hypothesis explanation and novelty statement. These two important mentioning will guide the reader towards the heart of the article. The introduction is not clear from the review what gaps are identified and what problems are proposed to be addressed. The introduction should be little rewritten to clarify the issues identified and your innovations.

2. Your abstract should clearly state the essence of the problem you are addressing, what you did and what you found and recommend. That would help a prospective reader of the abstract to decide if they wish to read the entire article. 

3. What about the purpose of your research? The discussion section is not critical writing. There is no explanation of the findings in the results, no comparison of the results with previous studies, and no new ideas are presented. 

4. Some of the points in the conclusion are not derived from your research.

5. Please pay attention to the line 490. I think the editorial explanations have nothing to do with the text.

6. The quality of the figures leaves much to be desired (Fig 1, 3, 4, 7). Axis variables cannot be easily identified. I think that an improvement in the quality of these figures would be beneficial.

 Best regards,

Author Response

Please see attached file.

Author Response File: Author Response.doc

Reviewer 2 Report

The novelty of the proposed study should be highlighted. Since it does not involve any experimental work. It is essential to determine the need for this study.

I did not find any comparison of simulation, analytical and experimental work. Please check the literature and include the comparative analysis.

In the introduction during the discussion on DSSCs and OPVs, please include the recent important studies covering experimental aspects (https://doi.org/10.1016/j.dyepig.2021.109624; https://doi.org/10.1016/j.jpowsour.2021.230782).

The wavelength range for the EQE spectra was chosen between 400 to 800 nm. Is there any specific reason? What about the NIR and UV regions?

What are the other PV technologies based on fiber? Please include it in the introduction.

The resolution and quality of the Figures need to improve. The font size is too small for visibility.

The language of the article should be thoroughly improved.

Author Response

Please, see attached file.

Author Response File: Author Response.doc

Round 2

Reviewer 2 Report

It can be accepted for publication.