Nature Search

Direct evidence for grain boundary passivation in Cu(In,Ga)Se₂ solar cells through alkali-fluoride post-deposition treatments

Grain boundaries play critical roles in determining the properties and performance of solar cells based on polycrystalline materials. Here Nicoara et al. showcase that proper treatments passivate defects at grain boundaries by forming secondary material phases with the CIGSe absorbers and lead to higher Voc.

Nicoleta Nicoara
Roby Manaligod
Sascha Sadewasser
ResearchOpen Access04 Sept 2019
Nature Communications

Volume: 10, P: 1-8
Charge-carrier-concentration inhomogeneities in alkali-treated Cu(In,Ga)Se₂ revealed by conductive atomic force microscopy tomography

By means of conductive atomic force microscopy tomography, Sharma et al. quantify the impact of different alkali-fluoride post-deposition treatments of CIGS solar cells on the spatial distribution of charge-carrier concentrations.

Deepanjan Sharma
Nicoleta Nicoara
Sascha Sadewasser
Research03 Jan 2024
Nature Energy

Volume: 9, P: 163-171
Chemical instability at chalcogenide surfaces impacts chalcopyrite devices well beyond the surface

Anion vacancies are a hurdle for technologies based on chalcogenide semiconductors and topological insulators. Even at room temperature, oxidation and cyanide etching can lead to selenium vacancies in CuInSe₂ photovoltaic material but suitable post deposition treatments can mitigate their effect.

Diego Colombara
Hossam Elanzeery
Susanne Siebentritt
ResearchOpen Access20 Jul 2020
Nature Communications

Volume: 11, P: 1-14

Quick links

Search

Filter By:

Direct evidence for grain boundary passivation in Cu(In,Ga)Se2 solar cells through alkali-fluoride post-deposition treatments

Charge-carrier-concentration inhomogeneities in alkali-treated Cu(In,Ga)Se2 revealed by conductive atomic force microscopy tomography

Chemical instability at chalcogenide surfaces impacts chalcopyrite devices well beyond the surface

Search

Quick links

Direct evidence for grain boundary passivation in Cu(In,Ga)Se₂ solar cells through alkali-fluoride post-deposition treatments

Charge-carrier-concentration inhomogeneities in alkali-treated Cu(In,Ga)Se₂ revealed by conductive atomic force microscopy tomography