Solid-state solar modules based on mesoscopic organometal halide perovskite: a route towards the up-scaling process.
We fabricated the first solid state modules based on organometal halide perovskite CH3NH3PbI3-xClx using Spiro-OMeTAD and poly(3-hexylthiophene) as hole transport materials. Device up-scaling was performed using innovative procedures to realize large-area cells and the integrated series-interconnections. The perovskite-based modules show a maximum conversion efficiency of 5.1% using both poly(3-hexylthiophene) and Spiro-OMeTAD. A long-term stability test was performed (in air, under AM1.5G, 1 Sun illumination conditions) using both materials showing different behaviour under continuous light stress. Whilst the poly(3-hexylthiophene)-based module efficiency drops by about 80% with respect to the initial value after 170 hours, the Spiro-based module shows a promising long-term stability maintaining more than 60% of its initial efficiency after 335 hours.
C.H.O.S.E. (Centre for Hybrid and Organic Solar Energy), Department of Electronic Engineering, University of Rome "Tor Vergata", via del Politecnico 1, Rome, 00133, Italy. aldo.dicarlo@uniroma2.it.
F
F
Matteocci
S
S
Razza
F
F
Di Giacomo
S
S
Casaluci
G
G
Mincuzzi
T M
TM
Brown
A
A
D'Epifanio
S
S
Licoccia
A
A
Di Carlo