1 research outputs found
Efficient Perovskite Solar Cells Based on Multilayer Transparent Electrodes through Morphology Control
A multilayer
transparent electrode WO<sub>3</sub>/Ag/WO<sub>3</sub> (WAW) has been
introduced into perovskite solar cells (PSCs). It
is found that the substrate has an obvious effect on the perovskite
morphology and crystallization and thus power conversion efficiency
(PCE) of the PSCs. The precursor composition and its effect on the
morphology, crystal, and device properties of the perovskite films
based on WAW and ITO electrodes have been investigated in detail.
When the CH<sub>3</sub>NH<sub>3</sub>I (MAI):PbI<sub>2</sub> molar
ratio is 1.04:1, the perovskite film shows flat and dense morphology
formed by the complete reaction of MAI and PbI<sub>2</sub>, and PSC
device shows the maximum PCE value of 9.73%, comparable with the controlled
device with the MAI:PbI<sub>2</sub> molar ratio of 1:1 based on ITO
electrode (10.51%). Meanwhile, a flexible PSC based on WAW transparent
electrode has also been fabricated, which exhibits a PCE of 8.04%,
indicating that WAW multilayer transparent electrodes have the potential
application in PSCs, especially in flexible PSCs