6533b860fe1ef96bd12c3bc5

RESEARCH PRODUCT

Structural and Electrochemical Analysis of CIGS: Cr Crystalline Nanopowders and Thin Films Deposited onto ITO Substrates

Vicente CompañSuzan SaberAmany El NahrawyAndreu AndrioMohamed Abo AlyN. M. KhattabAli EidBernabé MaríJorge Escorihuela

subject

hydrothermalMaterials scienceGeneral Chemical Engineeringchalcopyrite compounds02 engineering and technology010402 general chemistry01 natural sciencesArticlenanocrystalsspin coatingGeneral Materials ScienceThin filmQD1-999Cèl·lules fotoelèctriquesSpin coatingEISDopantChalcopyriteDoping021001 nanoscience & nanotechnologyCopper indium gallium selenide solar cells0104 chemical sciencesDielectric spectroscopyElectroquímicaChemistryNanocrystalChemical engineeringvisual_artvisual_art.visual_art_mediumconductivityMaterials nanoestructurats0210 nano-technology

description

A new approach for the synthesis of nanopowders and thin films of CuInGaSe2 (CIGS) chalcopyrite material doped with different amounts of Cr is presented. The chalcopyrite material CuInxGa1 − xSe2 was doped using Cr to form a new doped chalcopyrite with the structure CuInxCryGa1 − x − ySe2, where x = 0.4 and y = 0.0, 0.1, 0.2, or 0.3. The electrical properties of CuInx CryGa1 − x − ySe2 are highly dependent on the Cr content and results show these materials as promising dopants for the fabrication thin film solar cells. The CIGS nano-precursor powder was initially synthesized via an autoclave method, and then converted into thin films over transparent substrates. Both crystalline precursor powders and thin films deposited onto ITO substrates following a spin-coating process were subsequently characterized using XRD, SEM, HR-TEM, UV–visible and electrochemical impedance spectroscopy (EIS). EIS measurement was performed to evaluate the dc-conductivity of these novel materials as conductive films to be applied in solar cells.

yearjournalcountryeditionlanguage
2021-04-23
10.3390/nano11051093https://hdl.handle.net/10550/81066