Formation of Thin Films of Organic–Inorganic Perovskites for High‐Efficiency Solar Cells. Issue 11 (6th February 2015)

• Record Type: Journal Article
• Authors: Stranks, Samuel D.; Nayak, Pabitra K.; Zhang, Wei; Stergiopoulos, Thomas; Snaith, Henry J.
• Is Part Of: Angewandte Chemie international edition. Volume 54:Issue 11(2015)
• Page Start: 3240
• Page End: 3248
• Publication Date: 2015-02-06
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201410214
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Organic–inorganic perovskites are currently one of the hottest topics in photovoltaic (PV) research, with power conversion efficiencies (PCEs) of cells on a laboratory scale already competing with those of established thin‐film PV technologies. Most enhancements have been achieved by improving the quality of the perovskite films, suggesting that the optimization of film formation and crystallization is of paramount importance for further advances. Here, we review the various techniques for film formation and the role of the solvents and precursors in the processes. We address the role chloride ions play in film formation of mixed‐halide perovskites, which is an outstanding question in the field. We highlight the material properties that are essential for high‐efficiency operation of solar cells, and identify how further improved morphologies might be achieved.</p> </abstract>