Poly(3, 4-ethylenedioxythiophene):poly(styrenesulfonate)(PEDOT:PSS)–molybdenum oxide composite films as hole conductors for efficient planar perovskite solar cells. Issue 25 (13th June 2016)

• Record Type: Journal Article
• Authors: Jiang, Yurong; Li, Chen; Liu, Hairui; Qin, Ruiping; Ma, Heng
• Is Part Of: Journal of materials chemistry. Volume 4:Issue 25(2016)
• Page Start: 9958
• Page End: 9966
• Publication Date: 2016-06-13
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c6ta03658a
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : PEDOT:PSS–molybdenum oxide (MoO x ) composite films are used as hole transport layers in planar perovskite solar cells (PSCs) by simply incorporating solution-processed MoO x powders into a PEDOT:PSS solution. Abstract : Poly(3, 4-ethylenedioxythiophene):poly(styrenesulfonate)(PEDOT:PSS)–molybdenum oxide (MoO x ) composite films are used as hole transport layers in planar perovskite solar cells (PSCs) by simply incorporating solution-processed MoO x powders into a PEDOT:PSS solution. Compared to PEDOT:PSS based PSCs, the PEDOT:PSS–MoO x based PSC exhibits an obvious improvement in conversion efficiency, open circuit voltage, and fill factor. The morphology of perovskite films indicates that the film coverage has been improved due to the introduction of MoO x nanospots into the underlayer, which are regarded as the growing sites of the crystal nucleus of the perovskites during annealing. A PEDOT:PSS–MoO x based device with a power conversion efficiency of over 15% has been achieved, suggesting that the PEDOT:PSS–MoO x film is efficient as a hole transport layer in obtaining highly efficient planar perovskite solar cells.