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Abstract Single crystal anatase TiO 2 nanospindles (NSs) with highly exposed {101} facets were synthesized and employed as electron transport materials (ETMs) in perovskite solar cells (PSCs). Time-resolved photoluminescence (TRPL)… Click to show full abstract
Abstract Single crystal anatase TiO 2 nanospindles (NSs) with highly exposed {101} facets were synthesized and employed as electron transport materials (ETMs) in perovskite solar cells (PSCs). Time-resolved photoluminescence (TRPL) spectra revealed that the TiO 2 NSs are more effective than TiO 2 nanoparticles in accepting electrons from perovskite. Moreover, the TiO 2 nanospindles further endowed the PSCs with good reproducibility and suppressed hysteresis. The best device with TiO 2 NSs as ETMs yielded power conversion efficiency (PCE) of 19.6%, demonstrating that the home-made TiO 2 NSs is a good ETM for PSCs.
Journal Title: Journal of Energy Chemistry
Year Published: 2018
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