The effects of solvent treated PEDOT:PSS buffer layer in organic solar cells

Al‐Hashimi, Mohammed; Kadem, Burak; Rahaq, Yaqub; Kadhim, Raheem G.; Hassan, Aseel

doi:10.1007/s10854-018-9521-2

Cited by 3 publications

(1 citation statement)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The surface of the pristine PEDOT:PSS film shows the lowest value of roughness R q = 1.57 nm, and an increase with IPA post-treatment is observed to a maximum of R q = 1.93 nm using the dip technique. The increase of surface roughness in treated PEDOT:PSS films is well reported and may occur due to redistribution of PSS and PEDOT chains [32,33,34]. To confirm this, Figure 7e–h shows the AFM phase images and their high-contrast version for the different PEDOT:PSS films.…”

Section: Resultssupporting

confidence: 63%

Nanostructural Modification of PEDOT:PSS for High Charge Carrier Collection in Hybrid Frontal Interface of Solar Cells

et al. 2019

View full text Add to dashboard Cite

In this work, we propose poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) material to form a hybrid heterojunction with amorphous silicon-based materials for high charge carrier collection at the frontal interface of solar cells. The nanostructural characteristics of PEDOT:PSS layers were modified using post-treatment techniques via isopropyl alcohol (IPA). Atomic force microscopy (AFM), Fourier-transform infrared (FTIR), and Raman spectroscopy demonstrated conformational changes and nanostructural reorganization in the surface of the polymer in order to tailor hybrid interface to be used in the heterojunctions of inorganic solar cells. To prove this concept, hybrid polymer/amorphous silicon solar cells were fabricated. The hybrid PEDOT:PSS/buffer/a-Si:H heterojunction demonstrated high transmittance, reduction of electron diffusion, and enhancement of the internal electric field. Although the structure was a planar superstrate-type configuration and the PEDOT:PSS layer was exposed to glow discharge, the hybrid solar cell reached high efficiency compared to that in similar hybrid solar cells with substrate-type configuration and that in textured well-optimized amorphous silicon solar cells fabricated at low temperature. Thus, we demonstrate that PEDOT:PSS is fully tailored and compatible material with plasma processes and can be a substitute for inorganic p-type layers in inorganic solar cells and related devices with improvement of performance and simplification of fabrication process.

show abstract

Section: Resultssupporting

confidence: 63%