TY - JOUR
T1 - Assessment of flexible pristine CdS film electrodes in photoelectrochemical light-to-electricity conversions
AU - Sbeah, Majd
AU - Zyoud, Ahed
AU - Ishteiwi, Maen
AU - Hajjyahya, Muna
AU - Al Armouzi, Naoual
AU - Qamhieh, Naser
AU - Hajamohideen, Abdul Razack
AU - Zyoud, Samer
AU - Helal, Hamza H.S.
AU - Bsharat, Heba
AU - Nassar, Heba
AU - Helal, Mohammed H.S.
AU - Hilal, Hikmat S.
N1 - Funding Information:
The results described here are mainly based on M. Sbeah MSc thesis under direct supervision of H. S. Hilal and A. Zyoud, at An-Najah National University. N. Al Armouzi calculated film thickness using the Tauc plot method. M. Ishtaiwi and M. Haajjyahya calculated film thickness from the electronic absorption spectra using the Envelope method. H. Nassar participated in lab training and supervising. N. Qamhieh, A.R. Hajamohideen and S. Zyoud made XRD, SEM and EDS measurement. H. Helal and H. Bsharat participated with conceptualization of the ideas of preparing flexible films and graphics. M.H.S. Helal participated with computer and literature. No special funds have been given to this work.
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2023/1/1
Y1 - 2023/1/1
N2 - Compared to rigid CdS/glass electrodes, flexible pristine CdS electrodes have not been described in photoelectrochemical (PEC) based light-to-electricity conversions, despite wide descriptions of their preparations and characterizations. CdS film electrodes, deposited on flexible tin-doped indium oxide/polyethyleneterephthalate (ITO/PET) substrates, have been prepared here by both chemical bath deposition (CBD) and electrochemical deposition (ECD). The film PEC characteristics have been investigated here. With a very low thickness, the flexible ECD-CdS electrode fails to show measurable PEC performance. On the other hand, with higher film thickness, the CBD flexible electrode shows soundly high PEC performance. To further improve PEC characteristics of the flexible CBD-CdS/ITO/PET electrodes, various parameters have been varied, such as number of deposition cycles, annealing temperature, cooling rate and type of redox couple. Among the studied films, the four-layered CBD-CdS/ITO/PET film, annealed at 125 °C and quickly cooled, exhibits highest PEC performance and stability, with conversion efficiency higher than 1.2% in polysulfide redox couple. The results show that the flexible CBD-CdS/ITO/PET electrode may compete with earlier rigid CdS film electrodes deposited on fluorine doped tin oxide/glass substrate.
AB - Compared to rigid CdS/glass electrodes, flexible pristine CdS electrodes have not been described in photoelectrochemical (PEC) based light-to-electricity conversions, despite wide descriptions of their preparations and characterizations. CdS film electrodes, deposited on flexible tin-doped indium oxide/polyethyleneterephthalate (ITO/PET) substrates, have been prepared here by both chemical bath deposition (CBD) and electrochemical deposition (ECD). The film PEC characteristics have been investigated here. With a very low thickness, the flexible ECD-CdS electrode fails to show measurable PEC performance. On the other hand, with higher film thickness, the CBD flexible electrode shows soundly high PEC performance. To further improve PEC characteristics of the flexible CBD-CdS/ITO/PET electrodes, various parameters have been varied, such as number of deposition cycles, annealing temperature, cooling rate and type of redox couple. Among the studied films, the four-layered CBD-CdS/ITO/PET film, annealed at 125 °C and quickly cooled, exhibits highest PEC performance and stability, with conversion efficiency higher than 1.2% in polysulfide redox couple. The results show that the flexible CBD-CdS/ITO/PET electrode may compete with earlier rigid CdS film electrodes deposited on fluorine doped tin oxide/glass substrate.
KW - Efficiency & stability
KW - Flexible ITO/PET substrates
KW - Flexible pristine CBD-CdS films
KW - PEC
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U2 - 10.1016/j.matchemphys.2022.126967
DO - 10.1016/j.matchemphys.2022.126967
M3 - Article
AN - SCOPUS:85143547200
SN - 0254-0584
VL - 293
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
M1 - 126967
ER -