Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/61407
Title: Efficient planar perovskite solar cells with reduced Hysteresis and enhanced open circuit voltage by using PW12-TiO2 as electron transport layer
Authors: Huang, C
Liu, C
Di, Y
Li, W
Liu, F
Jiang, L
Li, J
Hao, X
Huang, H 
Keywords: Composite
Electron extraction
Electron transport layer
Interface
Planar perovskite solar cells
Issue Date: 2016
Publisher: American Chemical Society
Source: ACS applied materials and interfaces, 2016, v. 8, no. 13, p. 8520-8526 How to cite?
Journal: ACS applied materials and interfaces 
Abstract: An electron transport layer is essential for effective operation of planar perovskite solar cells. In this Article, PW12-TiO2 composite was used as the electron transport layer for the planar perovskite solar cell in the device structure of fluorine-doped tin oxide (FTO)-glass/PW12-TiO2/perovskite/spiro-OMeTAD/Au. A proper downward shift of the conduction band minimum (CBM) enhanced electron extraction from the perovskite layer to the PW12-TiO2 composite layer. Consequently, the common hysteresis effect in TiO2-based planar perovskite solar cells was significantly reduced and the open circuit voltage was greatly increased to about 1.1 V. Perovskite solar cells using the PW12-TiO2 compact layer showed an efficiency of 15.45%. This work can contribute to the studies on the electron transport layer and interface engineering for the further development of perovskite solar cells.
URI: http://hdl.handle.net/10397/61407
ISSN: 1944-8244
EISSN: 1944-8252
DOI: 10.1021/acsami.6b00846
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