Phase and Interface Stability Issues in Chalcopyrite-Based Thin Film Solar Cells

Autor:	Frank Ernst, David Cahen, Tilo Gödecke, Jean-François Guillemoles, Thomas Haalboom
Rok vydání:	1997
Předmět:	Materials science Chalcopyrite business.industry Ionic bonding Solar energy Overlayer Chemical physics Phase (matter) visual_art Vacancy defect visual_art.visual_art_medium Ionic conductivity business Phase diagram
Zdroj:	MRS Proceedings. 485
ISSN:	1946-4274 0272-9172
DOI:	10.1557/proc-485-127
Popis:	How stable are Cu(In,Ga)Se2 solar cells? CuInSe2 is known also as an ionic Cu conductor and the Cu-In-Se system has a rich phase diagram. Two stability-related problems are treated from a thermodynamic point of view: -a- Cu migration, -b- phase segregation. We show how Cu migration imparts self-stabilization on the system. Based on recently reported results on the room temperature phase diagram of CuInSe2, we explain why an overlayer of an ordered vacancy compound (OVC) is not to be expected to appear as a separate phase, even though the surface composition corresponds to that of the I-III3V5 OVC compound.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dcdfb07e9630b9775212ad4c03666b45 https://doi.org/10.1557/proc-485-127 Zobrazit plný text záznamu Full text from SpringerLink