I want to measure the thickness of tio2 mesoporous, perovskite and HTM layers in my perovskite solar cell samples accurately with FESEM images. but I dont know how to prepare my samples to avoid any damage in layers.
try this link.
You might want to consider ion milling for an even better finish.
http://www.azom.com/article.aspx?ArticleID=12687
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