TY - JOUR
T1 - Impact of solvent on the downconversion efficiency of the N-GQDs/PMMA layer
T2 - Application in CIGS solar cells
AU - Khan, Firoz
AU - Alshahrani, Thamraa
AU - Fareed, Imran
AU - Al-Rasheidi, Masoud
AU - Ahmad, Nafis
AU - Al-Ahmed, Amir
AU - Zahir, Md Hasan
AU - Kim, Jae Hyun
N1 - Publisher Copyright:
© 2022 Elsevier GmbH
PY - 2022/3
Y1 - 2022/3
N2 - Due to lowering the material cost, the thin film-based photovoltaic (PV) technologies are progressively drawing substantial concentration in the PV community. Among them, Cu(In, Ga)Se2 (CIGS) is considered a potential absorbing material due to its higher absorption and changeable band-gap. But it produced a low value of current at the short wavelength region. Thus, the short circuit current density (Jsc) is greatly reduced, which results in a lower value of the conversion efficiency. Here, N-doped graphene quantum dots (N-GQDs) are used as luminescent photon downshifters (LDS). Furthermore, the N-GQDs are embedded in the poly(methylmethacrylate) (PMMA) to enhance the chemical and mechanical stability of the LDS. However, the PMMA creates the photoluminescence (PL) quenching, which lessens the efficacy of the LDS layer. The LDS composite layer is formed in the various solvents. Furthermore, these LDS composites were evaluated via deployment onto the CIGS solar cells. The best performance is obtained in the chlorobenzene solvent. By insertion of the LDS composite layer, the Jsc was enhanced from 33.58 to 35.32 mA/cm2, which resulted in an enhancement in the efficiency from 13.08% to 14.62%. The PV cell parameters analysis revealed that recombination is reduced due to growing the number of photons, which results in the performance enhancement of the CIGS solar cells.
AB - Due to lowering the material cost, the thin film-based photovoltaic (PV) technologies are progressively drawing substantial concentration in the PV community. Among them, Cu(In, Ga)Se2 (CIGS) is considered a potential absorbing material due to its higher absorption and changeable band-gap. But it produced a low value of current at the short wavelength region. Thus, the short circuit current density (Jsc) is greatly reduced, which results in a lower value of the conversion efficiency. Here, N-doped graphene quantum dots (N-GQDs) are used as luminescent photon downshifters (LDS). Furthermore, the N-GQDs are embedded in the poly(methylmethacrylate) (PMMA) to enhance the chemical and mechanical stability of the LDS. However, the PMMA creates the photoluminescence (PL) quenching, which lessens the efficacy of the LDS layer. The LDS composite layer is formed in the various solvents. Furthermore, these LDS composites were evaluated via deployment onto the CIGS solar cells. The best performance is obtained in the chlorobenzene solvent. By insertion of the LDS composite layer, the Jsc was enhanced from 33.58 to 35.32 mA/cm2, which resulted in an enhancement in the efficiency from 13.08% to 14.62%. The PV cell parameters analysis revealed that recombination is reduced due to growing the number of photons, which results in the performance enhancement of the CIGS solar cells.
KW - CIGS solar cell
KW - Downconverters
KW - N-doped graphene quantum dots
KW - PMMA matrix
UR - https://www.scopus.com/pages/publications/85122300882
U2 - 10.1016/j.ijleo.2022.168569
DO - 10.1016/j.ijleo.2022.168569
M3 - Article
AN - SCOPUS:85122300882
SN - 0030-4026
VL - 253
JO - Optik
JF - Optik
M1 - 168569
ER -
