TY - JOUR
T1 - Effects of the processing variables on the optical properties of P3HT:PCBM absorber layer
T2 - A statistical point of view
AU - Loeza-Poot, M.
AU - Méndez-Hernández, J.
AU - Oviedo-Mendoza, M.
AU - Mis-Fernández, R.
AU - Peña, J. L.
AU - Peñuela-Cruz, C. E.
AU - Hernández-Rodríguez, E.
N1 - Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/3
Y1 - 2023/3
N2 - The organic solar cells (OSCs) stand out due to their low cost and possibility to be flexible; however, it is well known that small deviations of the manufacturing variables could affect their performance. Therefore, in this work, we conducted a systematic study of the effects of the precursor solution (PS) processing and the post-deposition thermal treatment (TT) on the optical properties of P3HT:PCBM absorber-layer, by applying a Central Composite Design of Experiments. Results revealed that the temperature is the factor with the greatest influence on material properties; while the stirring time by itself is the least significant; however, its interaction with high temperature promotes the structural disorder, inducing degradation of the absorber layer. The DoE showed that P3HT:PCBM layers with appropriate optical properties to be applied in OSCs are fabricated with a PS stirred at 53.5 °C for 18 h, and post-deposition TT below to 150 °C. These results were corroborated with X-ray diffraction, microscope optical images, and electrical and optical responses of manufactured solar cells.
AB - The organic solar cells (OSCs) stand out due to their low cost and possibility to be flexible; however, it is well known that small deviations of the manufacturing variables could affect their performance. Therefore, in this work, we conducted a systematic study of the effects of the precursor solution (PS) processing and the post-deposition thermal treatment (TT) on the optical properties of P3HT:PCBM absorber-layer, by applying a Central Composite Design of Experiments. Results revealed that the temperature is the factor with the greatest influence on material properties; while the stirring time by itself is the least significant; however, its interaction with high temperature promotes the structural disorder, inducing degradation of the absorber layer. The DoE showed that P3HT:PCBM layers with appropriate optical properties to be applied in OSCs are fabricated with a PS stirred at 53.5 °C for 18 h, and post-deposition TT below to 150 °C. These results were corroborated with X-ray diffraction, microscope optical images, and electrical and optical responses of manufactured solar cells.
KW - DoE
KW - Organic solar cells
KW - Precursor solution
KW - Spin-coating
KW - Thermal treatment
UR - http://www.scopus.com/inward/record.url?scp=85147451788&partnerID=8YFLogxK
U2 - 10.1016/j.optmat.2023.113514
DO - 10.1016/j.optmat.2023.113514
M3 - Artículo
AN - SCOPUS:85147451788
SN - 0925-3467
VL - 137
JO - Optical Materials
JF - Optical Materials
M1 - 113514
ER -