Abstract
Conjugated small-molecule hole-transport materials (HTMs) with tunable energy levels are designed and synthesized for efficient perovskite solar cells. A champion device with efficiency of 16.2% is demonstrated using a dopant-free DERDTS-TBDT HTM, while the DORDTS-DFBT-HTM-based device shows an inferior performance of 6.2% due to its low hole mobility and unmatched HOMO level with the valence band of perovskite film.
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CITATION STYLE
Yang, Y., Liu, Y., Hong, Z., Chen, Q., Chen, H., Chang, W. H., & Song, T. B. (2016). Perovskite Solar Cells Employing Dopant-Free Organic Hole Transport Materials with Tunable Energy Levels. Advanced Materials, 28(3), 440–446. https://doi.org/10.1002/adma.201504293
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