2024-03-29T07:38:53Zhttps://repositori.uji.es/oai/requestoai:repositori.uji.es:10234/1312482024-01-09T10:08:07Zcom_10234_2507com_10234_9col_10234_6973
00925njm 22002777a 4500
dc
Wang, Jacob Tse-Wei
author
Ball, James M.
author
Barea, Eva M
author
Abate, Antonio
author
Alexander-Webber, Jack A.
author
Huang, Jian
author
Saliba, Michael
author
Mora-Sero, Ivan
author
Bisquert, Juan
author
Snaith, Henry J.
author
Nicholas, Robin J.
author
2014
The highest efficiencies in solution-processable perovskite-based solar cells have been achieved using an electron collection layer that requires sintering at 500 °C. This is unfavorable for low-cost production, applications on plastic substrates, and multijunction device architectures. Here we report a low-cost, solution-based deposition procedure utilizing nanocomposites of graphene and TiO2 nanoparticles as the electron collection layers in meso-superstructured perovskite solar cells. The graphene nanoflakes provide superior charge-collection in the nanocomposites, enabling the entire device to be fabricated at temperatures no higher than 150 °C. These solar cells show remarkable photovoltaic performance with a power conversion efficiency up to 15.6%. This work demonstrates that graphene/metal oxide nanocomposites have the potential to contribute significantly toward the development of low-cost solar cells.
WANG, Jacob Tse-Wei, et al. Low-temperature processed electron collection layers of graphene/TiO2 nanocomposites in thin film perovskite solar cells. Nano letters, 2014, vol. 14, no 2, p. 724-730.
1530-6984
1530-6992
http://hdl.handle.net/10234/131248
http://dx.doi.org/10.1021/nl403997a
graphene
TiO2
perovskite
hybrid photovoltaics
nanocomposites
Low-temperature processed electron collection layers of graphene/TiO 2 nanocomposites in thin film perovskite solar cells