The effect of 3, 3', 3'',3'''-tetra poly- (1, 4-phenylene terphthalamide) pthalocyanine copper(II) in intermediate layer on the performance of active layer solar cells

Abdullah Abbas. Hussein1, Adil Ali Al-Fregi2  & Ziyad T. Al-Malki3

Polymer Research Centre, University of Basrah, 2 College of Science, University of Basrah, 3  Polymer Research Centre, University of Basrah

A new phthalocyanine grafted polymer namely 3, 3', 3'', 3'''-Tetra{ poly- (1, 4-
phenylene isophthalamide)} pthalocyanine copper (II) (TPPT) has been prepared and
characterized by IR , U.V-visible spectroscopies. 3, 3', 3'', 3'''-Tetra{ poly- (1, 4-
phenylene isophthalamide)} pthalocyanine copper (II) (TPPT) deposited at the interface
of the hole collecting buffer intermediate layer [poly(3,4ethylenedioxythiophene):
poly(styrene sulfonate) (PEDOT: PSS)] and poly (3-hexylthiophene): [6,6]-phenylC61
butyricacidmethylester (P3HT:PCBM) active layer were found to significantly increase
solar cell performance. The "photo-physical" properties of these devices incorporated
with (TPPT) with different space distributions at the interface of PEDOT: PSS buffer
intermediate layer, and P3HT: PCBM active layer were investigated. We find that, the
optical property was improved as the TPPT are large enough to penetrate into the active
layer and the performance of organic solar cells (OSCs) with large TPPT can benefit
from the improved hole collection efficiency. The power conversion efficiency (PCE)
enhancement for the device with a PEDOT: PSS. TPPT film is more significant than for
the device with PEDOT: PSS film. PSCs give Power Conversion Efficiency (PCE) of
0.14%, for ITO/PEDOT:PSS: TPPT/P3HT: PCBM/Al devices

Key Words: PEDOT: PSS, Buffer intermediate layer, P3HT: PCBM, Phthalocyanine, grafted polymer 


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