Lamkaouane A Interfaces Ambipolar organic layer Band diagram Band alignment Absorption spectroscopy Silicon Buffer layers 31P NMR Epitaxy 4-propylenedioxythiophene Electropolymerization ATR-FTIR Photoluminescence Back contact Actinide conditioning B Vapour deposition Surface morphology 34-propylenedioxypiyrrole A Fullerenes Planar heterojunctions GaSe2 Alternative module structure Interfaces A Thin films Aniline and thiophene derivatives Molybdenum oxide CIGS Copper indium gallium selenide Reverse bias ITO free electrode Ambipolar material Thin-film solar cells Anode buffer layer Aluminum phthalocyanine chloride Cattin Anode Anatase Alkali fluoride postdeposition treatments Characterization Addou Thin films 2D nanomaterials Photoemission spectroscopy Alkali Solar cell Active layers L Solar cells Adsorption Aminofluorene thiophene derivatives Partial shading Organic solar cell M Planar heterojunction ALPHA-AMYLASE ADSORPTION Alternative buffers Atomic force microscopy Raman Amorphous silica BaTiO3 BTO Ftouhi Aqueous colloidal solution Molybdenum trioxide E171 N-doping Absorption Fill factor Titanium dioxide Organic photovoltaic cells Tandem solar cells 4-ethylenedioxypyrrole Aluminum-doped zinc oxide CIGSe Buffer layer ADDITIVE E171 Sodium Anatase colloidal solution for printing Bernède X-ray diffraction PVD ABSORPTION H J-C 4-ethylenedioxythiophene TIO2 XPS CuIn Nanoparticles Thin film A Organic solar cells Alpha-sexithiophene Arzel Synthesis Analogue Photovoltaics Electrical properties