Reaction pathways to CuInSe{sub 2} formation from electrodeposited precursors

Journal Article · Thu Jun 01 04:00:00 EDT 1995 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.2044202· OSTI ID:82911

Guillen, C; Herrero, J ^[1]

---

1. Inst. de Energias Renovables, Madrid (Spain)

CuInSe{sub 2} thin films have been obtained from different precursors prepared by direct or sequential electrodeposition processes. The nature of the as-deposited layers and the evolution of the films during the heat-treatment in an inert (vacuum) or a reactive (elemental Se vapor) atmosphere have been studied by X-ray diffraction and X-ray photoelectron spectroscopy analysis. The chemistry of the different phase transformations occurring as a function of the annealing temperature has been examined, and possible reaction pathways for the formation of CuInSe{sub 2} are presented. The results show that high crystalline chalcopyrite CuInSe{sub 2} films with the desired composition can be obtained after annealing either direct or sequentially electrodeposited precursors at 400 C. An improvement in film quality can be gained by using an electrodeposited Cu layer as growth surface for the CuInSe{sub 2} formation. If elemental Se is also added during the heat-treatment, then a higher recrystallization of the films is observed.

• Sponsoring Organization: USDOE
• OSTI ID: 82911
• Journal Information: Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 6 Vol. 142; ISSN 0013-4651; ISSN JESOAN
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
36 MATERIALS SCIENCE
COPPER SELENIDE SOLAR CELLS
COPPER SELENIDES
CRYSTAL-PHASE TRANSFORMATIONS
ELECTRODEPOSITED COATINGS
ELECTRODEPOSITION
HEAT TREATMENTS
INDIUM SELENIDE SOLAR CELLS
INDIUM SELENIDES
PHOTOVOLTAIC CELLS