Published November 2018 | Version v1
Journal article Metadata-only

In situ fabrication of 2D SnS2 nanosheets as a new electron transport layer for perovskite solar cells

Creators

  • 1. Dalian University of Technology, State Key Laboratory of Fine Chemicals, School of petroleum and chemical engineering (China)
  • 2. Kyushu Institute of Technology, Graduate School of Life Science and Systems Engineering (Japan)

Description

To promote commercialization of perovskite solar cells (PSCs), low-temperature processed electron transport layer (ETL) with high carrier mobility still needs to be further developed. Here, we reported two-dimensional (2D) tin disulfide (SnS2) nanosheets as ETL in PSCs for the first time. The morphologies of the 2D SnS2 material can be easy controlled by the in situ synthesized method on the conductive fluorine-doped tin oxide (FTO) substrate. We achieved a champion power conversion efficiency (PCE) of 13.63%, with the short-circuit current density (JSC) of 23.70 mA/cm2, open-circuit voltage (VOC) of 0.95 V, and fill factor (FF) of 0.61. The high JSC of PSCs results from effective electron collection of the 2D SnS2 nanosheets from perovskite layer and fast electron transport to the FTO. The low VOC and FF are the results of the lower conduction band of 2D SnS2 (4.23 eV) than that of TiO2 (4.0 eV). These results demonstrate that 2D material is a promising candidate for ETL in PSCs. .

Additional details

Identifiers

DOI
10.1007/s12274-018-2103-z;

Publishing Information

Journal Title
Nano Research (Print)
Journal Volume
11
Journal Issue
11
Journal Page Range
p. 5913-5923
ISSN
1998-0124

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
51017906
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY;
Descriptors DEI
CARRIER MOBILITY; CURRENT DENSITY; DISULFIDES; DOPED MATERIALS; ELECTRIC POTENTIAL; ELECTRON TRANSFER; FABRICATION; FILL FACTORS; FLUORINE; MORPHOLOGY; NANOSTRUCTURES; PEROVSKITE; SHEETS; SOLAR CELLS; TIN OXIDES; TIN SULFIDES; TITANIUM OXIDES; TWO-DIMENSIONAL SYSTEMS
Descriptors DEC
CHALCOGENIDES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIMENSIONLESS NUMBERS; DIRECT ENERGY CONVERTERS; ELEMENTS; EQUIPMENT; HALOGENS; MATERIALS; MINERALS; MOBILITY; NONMETALS; ORGANIC COMPOUNDS; ORGANIC SULFUR COMPOUNDS; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; PEROVSKITES; PHOTOELECTRIC CELLS; PHOTOVOLTAIC CELLS; SOLAR EQUIPMENT; SULFIDES; SULFUR COMPOUNDS; TIN COMPOUNDS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Copyright
Copyright (c) 2018 Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature