We would like to submit the enclosed manuscript entitled “Comparison of Physical Isolation on Large Active Area Perovskite Solar Cells”, which we hope to be considered for publication in “Chem。 J。 Chinese Universities。”。 The manuscript is approved by all authors for publication and has not been published and submitted to other journals previously。 We deeply appreciate your consideration of our manuscript, and we look forward to receiving comments from the reviewers。
Physical isolation of the large area devices into small pieces has been proven to be a reliable and cost-efficient patterning technique to reduce series resistance (Rs) and sheet resistance (Rst) of solar cells。 In this paper, we got an abnormal result that the physical isolation had little effect on the photovoltaic performance of perovskite solar cells (PSCs) when fixing the active area。 Three different isolation types, unetched ITO, etched ITO, and laser etching whole devices, have been induced to investigate the physical isolation roles。 The results show that the electrons and holes could be collected efficiently in active area for all of the isolation types。 The mechanism proposed by us shows that the nonradiative recombination and recombination of electrons and hole in inactive area does not influence the performance of devices。 Our work can open a new way for the commercialization of PSCs by reducing the complex process and the etching costs。
Yours sincerely,
Liguo Gao, PhD
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