Low-Temperature Ionic Layer Adsorption and Reaction Grown Anatase TiO₂ Nanocrystalline Films for Efficient Perovskite Solar Cell and Gas Sensor Applications.

ABSTRACT: A low-temperature (90 °C) and directly grown anatase titanium dioxide (TiO₂) nanocrystalline film using successive ionic layer adsorption and reaction (SILAR) for perovskite solar cell and gas sensor applications. TiO₂ nanocrystalline electron transfer layer (ETL) improves the power conversion efficiency (PCE) of perovskite solar cells due to faster charge transport kinetics as well as slower charge recombination process. The optimized TiO₂ nanocrystalline ETL (15 L) demonstrates as high as ~10% PCE with a short circuit current density of 18.0 mA/cm², open circuit voltage of 0.81 V and fill factor of 66.3% in perovskite solar cells. Furthermore, room-temperature ammonia sensing characteristics of TiO₂ nanocrystalline film (25 L) were 

SUBMITTER: Shaikh SF 

PROVIDER: S-EPMC6054626 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature