Morphological and optical properties changes in nanocrystalline Si (nc-Si) deposited on porous aluminum nanostructures by plasma enhanced chemical vapor deposition for Solar energy applications

Photothermal Deflection Spectroscopy Study of Nanocrystalline Si (nc-Si) Thin Films Deposited on Porous Aluminum with PECVD

“…The energy bandgap decreases with anodisation current and varies from 2.2 to 1.9 eV as I a varies from 200 to 400 mA, International Journal of Photoenergy 5 respectively ( Table 1). The obtained value of E g agrees with gap energies measured by other authors [15].…”

UV irradiation and H2 passivation processes to classify and distinguish the origin of luminescence from thin film of nc-Si deposited by PECVD technique

“…It is found that SDBs are the origin of the enhanced green PL peak at 547 nm (2.27 eV). The coexistence of a green PL peak at 547 nm (2.27 eV) and a red PL peak at 748 nm (1.66 eV) is attributed to the competition between the role of SDBs and Si-O bonds at the interfaces a-Si/SiO 2 films [55], in agreement to Ghrib et al [56] who studied the changes in the morphological and optical properties of nc-Si deposited on porous aluminum nanostructures by PECVD. They observed two peaks: one centered in the range 1.3-1.42 eV and the other in the range 2.3-2.6 eV which are due to the QC in nc-Si and oxygen vacancies, respectively, in contrast with the present work.…”

Nanoporous Anodic Alumina Photonic Crystals for Sunlight Harvesting Applications: A Perspective

“…The Cu 2 O/InP–NAA p–n heterojunction solar cell attained a 1.55% power conversion efficiency (PCE) with a photocurrent density of 5.47 mA cm −2 , and a fill factor of about 47%. Meanwhile, Dhahri et al [ 152 ] and Ghrib et al [ 153 ] have used plasma‐enhanced CVD to deposit nanocrystalline silicon on top of NAA structures. The resultant composite structure showed tuneability of optical properties with deposition temperature and time.…”