Down-shifting and antireflective effects of ZnO/PMMA thin films and their influence on silicon solar cells performance

Flores-Pacheco, A.; Montes-Bojórquez, José Raul; Álvarez-Ramos, M. E.; Ayón, Arturo A.

doi:10.1016/j.mne.2022.100128

Cited by 5 publications

(3 citation statements)

References 24 publications

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“…Semiconductor nanoparticles (NPs) are also widely applied as LDS materials since their optical absorption and emission spectra can be tuned by varying their size and changing doped species. Cd and Zn-related, [20][21][22] carbon-related 23) and perovskite 24,25) NPs were utilized for improving the quantum efficiency of Si cells. These semiconductor NPs were mainly synthesized by the hot-injection method.…”

Section: Introductionmentioning

confidence: 99%

“…LDS films with higher optical densities (ODs) are preferable for more markedly improving solar cell characteristics. Several-hundred-micron thick LDS films are fabricated by dispersing LDS materials in films made of EVA, 3,17,19,24) polymethyl methacrylate (PMMA) 16,22) and silica glass. 18) Organic solvents, such as toluene, were used in forming EVA and PMMA films.…”

Section: Introductionmentioning

confidence: 99%

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Intrinsic characteristics of Si solar cells coated with thick luminescence down-shifting sol–gel glass films

Idutsu¹,

Awai

Liang³

et al. 2023

Jpn. J. Appl. Phys.

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We investigate effects of several-hundred-micron thick luminescence down-shifting (LDS) films composed of sol-gel glass with Zn-based nanoparticles (NPs) dispersed on characteristics of Si solar cells. Their internal quantum efficiencies (IQEs) are successfully measured by separating contributions of downshifted photons in measuring reflectance for 300-400 nm, wavelengths of incident photons absorbed by the NPs. We find that IQEs for this wavelength range are more enhanced by employing thicker LDS films, i.e., LDS films with higher optical densities. We also discuss relationship among the number density of NPs in LDS films, their optical properties, and IQEs of cells. We observe a discrepancy between measured and calculated IQEs and indicate escape of downshifted photons across sides of LDS films as its possible origin.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Intrinsic characteristics of Si solar cells coated with thick luminescence down-shifting sol–gel glass films

Idutsu¹,

Awai

Liang³

et al. 2023

Jpn. J. Appl. Phys.

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“…It is a material of great interest, since ZnO-based devices find numerous applications in optical, gas and humidity sensing due to its favourable chemical and physical properties [13,14]. Also, layered materials based on ZnO are very important with respect to their electronic, optical and thermo-mechanical properties and are widely used in solar cells [15], nanoelectronics [16], biomedicine [17], piezoelectric and sound transduction applications [18] and other areas of high technological impact.…”

Section: Introductionmentioning

confidence: 99%

Pump-probe reflectivity studies of ultrashort laser-induced acousto-mechanical strains in ZnO films

Kosma,

Kaleris,

Kaselouris

et al. 2023

Appl. Phys. A

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In the current work we report on the generation of acoustic strains in thin ZnO layers using optoacoustic transduction of ultrashort laser pulses into acoustic waves on an Au thin film transducer. After absorption of energy by the electron system of the metal, energy conversion, thermal expansion and mechanical deformation takes place. The generation and propagation of the induced acoustic strains are monitored in time via a degenerate pump-probe transient reflectivity optical setup at 800 nm, as opposed to most commonly used schemes that employ different wavelengths for the pump and probe beams, mostly in the vicinity of ZnO maximum absorption. The experimental results include energy relaxation times and phonon scattering frequencies and are supported by a thermal vibro-acoustic finite element model. The model is based on the combination of a revised two-temperature approach and elasticity theory, and considers anisotropic properties for the ZnO film and the computation of the elastic wave velocity for the first time. The outcomes are discussed in the context of electron–phonon coupling factors and other material properties. A good agreement between the experimental findings and the results from the numerical simulations has been established, regarding outcomes like the mean velocity of the strain waves, establishing a novel characterization method applicable to a variety of materials and structures.

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In-situ and ex-situ EPS-corona formation on ZnO QDs mitigates their environmental toxicity in the freshwater microalgae Chlorella sp.

Debroy,

Sinha,

Maity

et al. 2025

Journal of Hazardous Materials

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Down-shifting and antireflective effects of ZnO/PMMA thin films and their influence on silicon solar cells performance

Cited by 5 publications

References 24 publications

Intrinsic characteristics of Si solar cells coated with thick luminescence down-shifting sol–gel glass films

Intrinsic characteristics of Si solar cells coated with thick luminescence down-shifting sol–gel glass films

Pump-probe reflectivity studies of ultrashort laser-induced acousto-mechanical strains in ZnO films

In-situ and ex-situ EPS-corona formation on ZnO QDs mitigates their environmental toxicity in the freshwater microalgae Chlorella sp.

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