Unraveling rapid one-pot synthesis of Cu(In,Ga)Se2 microcrystal light absorber with tunable morphology and its influence on the solar cell performance

Marasamy, Latha; Chettiar, Aruna-Devi Rasu; Flores, F. de Moure; Santos‐Cruz, J.; Velumani, S.; Mayén-Hernández, S.A.; Carvayar, José Álvaro Chávez

doi:10.1016/j.matlet.2021.130928

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…Organic bulk heterojunction solar cells (OSCs) have gained considerable research attention in the past few years owing to their advantages of flexibility, lightweight, and solution‐based low‐cost processes 1‐3 . However, the reported power conversion efficiency (PCE) of OSCs is still low compared to other solar cells like Si and CIGSe 4‐6 . Therefore, semiconducting nanocrystals (NCs) are incorporated into the organic polymer, which turns out to be hybrid solar cells (HSCs), where polymer acts as a donor and NCs act as acceptors.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] However, the reported power conversion efficiency (PCE) of OSCs is still low compared to other solar cells like Si and CIGSe. [4][5][6] Therefore, semiconducting nanocrystals (NCs) are incorporated into the organic polymer, which turns out to be hybrid solar cells (HSCs), where polymer acts as a donor and NCs act as acceptors. Besides, the NCs exhibit excellent properties such as larger dielectric constant, high electron mobility, great stability, tunable shape, and bandgap.…”

Section: Introductionmentioning

confidence: 99%

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Studying the impact of Mg doping on the physical properties of CdS nanocrystals for the fabrication of hybrid solar cells–based organic P3HT : PCBM polymers and inorganic Mg‐doped CdS nanocrystals

Aruna-Devi

Marasamy

Mayén-Hernández

et al. 2021

Intl J of Energy Research

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Summary Herein, the influence of Mg‐doped CdS nanocrystals (NCs) on the performance of hybrid solar cells (HSCs) is investigated for the first time. Pristine and Mg‐doped CdS NCs at different concentrations (0.25, 0.5, and 0.75 mol%) are synthesized using the heating up method. The effect of Mg on structural, compositional, morphological, optical, and electrical properties of CdS NCs is examined. The structural analysis showed a peak shift toward a higher wavelength, while lattice parameters a and c are decreased. As the Mg concentration increases, the shape and size of the CdS NCs are considerably changed, while the bandgap is tuned from 2.66 to 2.44 eV. Besides, the resistivity of CdS is significantly decreased while carrier concentration increases. Then, the device is fabricated with a configuration of FTO/TiO2/P3HT:PC61BM/MoO3/Ag, wherein the influence of different concentrations of undoped and Mg‐doped CdS NCs on the performance of HSCs is explored. The Mg‐doped CdS NCs exhibited a power conversion efficiency of 2.92%, 2.5 times higher than the polymer device. Thus, the results revealed that the Mg doping significantly improved the properties of CdS NCs and the performance of HSCs. Henceforth, this work would provide a new path to enhance the power conversion efficiency of the HSCs in a low‐cost approach.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Studying the impact of Mg doping on the physical properties of CdS nanocrystals for the fabrication of hybrid solar cells–based organic P3HT : PCBM polymers and inorganic Mg‐doped CdS nanocrystals

Aruna-Devi

Marasamy

Mayén-Hernández

et al. 2021

Intl J of Energy Research

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Cu(In,Ga)Se$$_2$$-based solar cells for space applications: proton irradiation and annealing recovery

Candeias,

Fernandes,

Falcão

et al. 2023

J Mater Sci

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In this work, we present an experimental study of a Cu(In,Ga)Se$$_2$$ 2 (CIGS)-based solar cell (SC), irradiated with protons of energy 80 and 180 keV and with fluences of $$10^{12}$$ 10 12 , $$10^{13}$$ 10 13 , and $$10^{14}$$ 10 14 cm$$^{-2}$$ - 2 , as well as a strategy to recover the induced damage. The possible modifications of the structural, electrical, and optical properties, induced by the proton irradiation, were investigated. Although the irradiation did not promote any major modification in the crystalline structure, it did induce the creation of defects responsible for changes in the electronic structure which caused a partial PL quenching and significant changes in the PL spectral shape, as well as a reduction of the power conversion efficiency and open-circuit voltage of up to 30% as revealed by J–V measurements. The photoluminescence results showed a broadening, redshift and decrease in the signal-to-noise ratio. The recovery of damage induced by irradiation in several SCs was tested through annealing steps performed at different temperatures and time intervals. It was found that the best recovery strategy for the investigated irradiation parameters was carrying out several isothermal annealing at 200 °C for 30 min. This strategy is compatible with the intermittent variation of the temperature in space and allowed to recover a power conversion efficiency comparable to that of the as grown cell. In particular, it must be highlighted that keeping the SC at room temperature in ambient atmosphere and in the dark, did not promote significant recovery in contradiction with some previous reports. This recovery methodology was applied in parallel for non-irradiated SCs and no increase in power conversion efficiency was found, but rather a slight decrease. The dominant radiative recombination channel was, apparently, unchanged with the irradiation and the subsequent recovery process. Nonetheless, changes in the concentration of defects of different types cannot be excluded, which is in line with a significant influence of fluctuating potentials in both as grown and after recovery stages of the solar cell. This work constitutes a first systematic study that simultaneously encompasses the influence of proton irradiation on the optical and electrical properties of CIGS SCs and a damage recovery methodology with a high potential to be explored in space applications. Additionally, it contributes to reinforcing the high potential of CIGS technology in the context of creating constellations of small satellites that are being developed by different entities, particularly private ones.

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Novel and economical approach of sulfurizationof Bi-facial CIGSe layers on flexible substrate

Londhe,

Desarada,

Sali

et al. 2023

Surfaces and Interfaces

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Unraveling rapid one-pot synthesis of Cu(In,Ga)Se2 microcrystal light absorber with tunable morphology and its influence on the solar cell performance

Cited by 3 publications

References 14 publications

Studying the impact of Mg doping on the physical properties of CdS nanocrystals for the fabrication of hybrid solar cells–based organic P3HT : PCBM polymers and inorganic Mg‐doped CdS nanocrystals

Studying the impact of Mg doping on the physical properties of CdS nanocrystals for the fabrication of hybrid solar cells–based organic P3HT : PCBM polymers and inorganic Mg‐doped CdS nanocrystals

Cu(In,Ga)Se$$_2$$-based solar cells for space applications: proton irradiation and annealing recovery

Novel and economical approach of sulfurizationof Bi-facial CIGSe layers on flexible substrate

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