CuS film electrodes; Metalloporphyrin/polyethylene; PEC Conversion efficiency; Stability;

Hikmat S. Hilal's picture

Enhanced PEC characteristics of pre-annealed CuS film electrodes by metalloporphyrin/polymer matrices

Journal Title, Volume, Page: 
Solar Energy Materials and Solar Cells, 144 (2016) 429 - 437;
Year of Publication: 
2016
Authors: 
Ahed Zyoud
Current Affiliation: 
An-Najah National University
Rana Al-Kerm
An-Najah national University
Rola Al-Kerm
An-Najah National University
Doaa AbdelHadi
An-Najah National University
MOhammed H.S. Helal
Department of Electrical & Computer Engineering, (ED111)1001TaHsueh Road, Hsinchu 30010, Taiwan, ROC
Current Affiliation: 
Department of Electrical & Computer Engineering, (ED111)1001TaHsueh Road, Hsinchu 30010, Taiwan, ROC
Guy Campet
University of Bordeaux
Reham Muthaffar
Al-Quds University
Hansong Kwon
Department of Materials System Engineering, Pukyong National University, 365 Sinseonro, Namgu, 608739 Busan, South Korea
Current Affiliation: 
Department of Materials System Engineering, Pukyong National University, 365 Sinseonro, Namgu, 608739 Busan, South Korea
DaeHoon Park
Dansuk Industrial Co., Ltd., #1239-5, Jeongwang-Dong, Shiheung-Si, Kyonggi-Do 429913, South Korea
Current Affiliation: 
Dansuk Industrial Co., Ltd., #1239-5, Jeongwang-Dong, Shiheung-Si, Kyonggi-Do 429913, South Korea
Hikmat S. Hilal
An-Najah National University
Current Affiliation: 
An-Najah National University
Preferred Abstract (Original): 
High conversion efficiency (η) values have been obtained from modified CuS film electrodes electrochemically
deposited onto Glass/FTO. The modification involved pre-annealing the film followed by
coating with tetra(-4-pyridyl)porphyrinato manganese (MnTPyP
) ions embedded inside a polyethylene
(PE) matrix. The Glass/FTO/CuS/MnTPyP/PE electrodes exhibited enhanced photo-electrochemical (PEC)
characteristics under solar simulated illumination (5.6 mW/cm
þ
2
) in aqueous media, compared to the
as-prepared Glass/FTO/CuS films which showed no PEC activity. Up to 17.4% efficiency and 85% fill factor
(FF) values were obtained from the modified film electrodes. Such characteristics have not been widely
known for metal chalcogenide based film electrodes before. Different pre-annealing temperatures were
attempted and the 250 °C temperature, followed by quenching, showed favorable results. Different
aqueous redox couples were studied and the environmentally safe FeCl
2
/FeCl
aqueous system showed
highest PEC characteristics. Effect of pre-annealing on film electrode characteristics is discussed. The
MnTPyP/PE matrix behaves as charge transfer catalyst for the holes across the CuS film/liquid junction.
3
& 2015 Elsevier B.V. All rights reserved.
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