Addition effect of Ti<sub>2</sub>NTx MXene to PEDOT:PSS catalyst layer on photovoltaic performance of hybrid solar cells
발표자
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초록
내용
MXenes are created by selectively removing aluminum from layered MAX phases (Mn+1AXn, where n = 1-3, M denotes a transition metal, A is an element such as aluminum or silicon, and X is either carbon or nitrogen), and can be easily solution-processed in aqueous or polar organic solvents because of their hydroxyl- or oxygen-terminated surfaces(Tx). With a high electron density at the Fermi level, MXene monolayers are predicted to be metallic. In this study, Ti2NTx MXene was synthesized, and then applied as an additive for poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) catalyst layer in hybrid solar cells (HSCs) with a basic configuration of glass/F-doped tin oxide(FTO)/TiO2:dye/I-,I3- redox mediator/catalyst/FTO/glass. A HSC with bare PEDOT:PSS layer as catalyst layer showed a 38.79% of fill factor(FF), while 58.96% of FF was recorded by adding the Ti2NTx MXene to the PEDOT:PSS catalyst layer.