http://www.cnr.it/ontology/cnr/individuo/prodotto/ID223909
Dynamics of evaporation from CuGaSe2 targets in pulsed electron deposition technique (Articolo in rivista)
- Type
- Label
- Dynamics of evaporation from CuGaSe2 targets in pulsed electron deposition technique (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1088/0022-3727/46/24/245101 (literal)
- Alternative label
F. Pattini, M. Bronzoni, F. Mezzadri, F. Bissoli, E. Gilioli and S. Rampino (2013)
Dynamics of evaporation from CuGaSe2 targets in pulsed electron deposition technique
in Journal of physics. D, Applied physics (Print); IOP Publishing Ltd. (Institute of Physics Publishing Ltd), "Bristol ; London" (Regno Unito)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- F. Pattini, M. Bronzoni, F. Mezzadri, F. Bissoli, E. Gilioli and S. Rampino (literal)
- Pagina inizio
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://iopscience.iop.org/0022-3727/46/24/245101/ (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- IMEM-CNR, Parco Area delle Scienze 37/A, 43124 Parma, Italy (literal)
- Titolo
- Dynamics of evaporation from CuGaSe2 targets in pulsed electron deposition technique (literal)
- Abstract
- The evaporation mechanisms from a solid target in pulsed electron deposition (PED) technique
have been investigated by analysing the chemical composition and the thickness distribution of
CuGaSe2 (CGS) films grown at different discharge voltages on glass substrates. The behaviour
of the plasma plume generated from the target can be described by a linear combination of two
coexisting processes: incongruent thermal evaporation and congruent ablation, which exhibit
different weights depending on the PED voltage. The first component arises from the
thermodynamic liquid-to-vapour transition involving the very first layers of the target surface,
while the second one is due to the subsurface target penetration of the pulsed e-beam. The
chemical composition of the thermally evaporated cloud, according to the CuGaSe2 phase
diagram, exhibits an incongruent Cu depletion during the solid-to-gas phase transition with
respect to the target, thus forming the ordered vacancy compound CuGa3Se5, while the
sublimation of ablated species is perfectly stoichiometric. The thermally evaporated plasma
follows a typical surface source spatial distribution, while the expansion of the ablation
products exhibit a forward-peaked angular behaviour proportional to cosp ? (4 < p < 7). The
incongruent component becomes negligible by enhancing the discharge voltage, where the
e-beam is able to more deeply penetrate the target, and the electron power density exceeds the
threshold ablation value of 1×108 Wcm-2. The proposed mechanism for PED process is
compared to other models describing the plume generation in pulsed high-energy-induced
growth technique. This study represents a remarkable result to better understand and control
the PED process. (literal)
- Editore
- Prodotto di
- Autore CNR
- Insieme di parole chiave
Incoming links:
- Autore CNR di
- Prodotto
- Editore di
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
- Insieme di parole chiave di