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