Electron injection and scaffold effects in perovskite solar cells.

ABSTRACT: In spite of the impressive efficiencies reported for perovskite solar cells (PSCs), key aspects of their working principles, such as electron injection at the contacts or the suitability of the utilization of a specific scaffold layer, are not yet fully understood. Increasingly complex scaffolds attained by the sequential deposition of TiO₂ and SiO₂ mesoporous layers onto transparent conducting substrates are used to perform a systematic characterization of both the injection process at the electron selective contact and the scaffold effect in PSCs. By forcing multiple electron injection processes at a controlled sequence of perovskite-TiO₂ interfaces before extraction, interfacial injection effects are magnified and hence characterized in detail. An anomal

SUBMITTER: Anaya M 

PROVIDER: S-EPMC5361135 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature