Direct growth of ZnSnO nano-wires by thermal evaporation technique for thermoelectric applications

Rehman, U.; Jacob, Jolly; Mahmood, K.; Ali, Adnan; Ashfaq, Arslan; Amin, Nasir; Ikram, Salma; Ahmad, Waqas; Hussain, Sajad

doi:10.1016/j.physb.2019.06.042

Cited by 32 publications

(4 citation statements)

References 34 publications

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“…In electronic devices, MoSe 2 , inherently n-type material, is a very attractive material to be used as a buffer layer because it provides photon transmission into the absorber semiconductor. For photovoltaics and single junction solar cells the optimal band gap should be ⁓1.55eV which is closer to band gap values of MoSe 2 material [11] . It has large excitons binding energy, non-toxic and low cost materials.…”

Section: Introductionmentioning

confidence: 69%

Study of Electrical Transport Properties of CZTS/MoSe2/glass Heterostructures

Zhang,

Ikram,

Ali

et al. 2024

J Mod Green Energy

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Objective: In this manuscript, we have investigated the temperature dependent electrical transport properties of CZTS/MoSe2/glass heterostructures for solar cell applications. Methods: MoSe2 coated CZTS diode thin films were fabricated using sol-gel and thermal evaporation methods. During first step, CZTS thin films were grown on glass substrate by sol-gel process and in the 2nd step, MoSe2 thin films were grown on CZTS/glass using thermal evaporation method. The grown structures were post growth annealed at 450-500℃ using a muffle furnace. Results: The structure of each layer was verified by XRD and Raman spectroscopy. SEM analysis has confirmed the smooth surface formation of thin films with a uniform distribution of grains. Electrical properties have been studied by two probe technique after the junction formation between CZTS and MoSe2. Transport properties of the junction showed its semiconductor nature. The resistivity varies from 0 to 7×109ohm-cm for the sample annealed at 450℃ and varies 0 to 3×1010ohm-cm for the sample annealed at 500℃. Conclusion: All these parameters made synthesized thin films promising candidates for higher efficiency solar cells, radio modulation and power conversion applications. The effect of the MoSe2 layer on the microstructure and performance of the CZTS film is discussed here in detail. These results serve as guiding principles for preparing high-quality CZTS thin films for potential applications in low-cost solar cells.

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Section: Introductionmentioning

confidence: 69%

Study of Electrical Transport Properties of CZTS/MoSe2/glass Heterostructures

Zhang,

Ikram,

Ali

et al. 2024

J Mod Green Energy

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“…Sn is supposed to be a strong doping element in ZnO and easy to replace zinc because it has comparable atomic radii. However, Sn doping in ZnO can significantly enhance the Seebeck coefficient and electrical conductivity hence increase in power factor as reported in the literature so far [18,19].…”

Section: Introductionmentioning

confidence: 77%

Influence of post annealing temperature on the thermoelectric properties of bulk ZnSnO

Ali¹,

Rehman²,

Mahmood³

et al. 2021

JOR

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In this manuscript, we have studied the structural, electrical and thermoelectric properties of bulk ZnSnO by post growth annealing method. X-Ray Diffraction data showed that the crystallinity was found to be improved y annealing up to 700oC due to compensation of oxygen vacancy type donor defects. But further annealing forced the oxygen atoms to diffuse into the interstitial sites, therefore causes degradation in the crystal quality. Thermoelectric properties were increased with annealing temperature up to 700oC and then decreased due to further annealing. The sharp enhancement of thermoelectric properties is due to mobility increase of carriers.

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“…Due to the continuous growth of energy demand and the limited traditional energy resources, it is urgent to develop renewable energy [1]. Solar energy is regarded as the most renewable energy among the currently applicable new energies because of its characteristics of unlimited renewability, environmental cleanliness, decentralization, and economic viability, so the efficient utilization of solar energy is of great significance [2].…”

Section: Introductionmentioning

confidence: 99%

“…Based on previous research, the present study introduces a novel SPT system that utilizes spectral beam splitting. Characteristics of such a system involve: (1) It can improve photovoltaic power generation efficiency; (2) The solar energy that cannot be converted into photoelectricity is reflected onto the receiver for thermal utilization, thereby greatly improving the comprehensive utilization efficiency of solar energy. Furthermore, five cities Lhasa, Harbin, Shanghai, Haikou, and Kunming representing five typical climate zones respectively, were selected for system efficiency prediction based on typical climate year solar radiation data, and the results were compared with the PV and SPT systems.…”

Section: Introductionmentioning

confidence: 99%

Performance prediction of a novel solar power tower system based on spectral beam splitting

Zhang,

Qiu,

Zhang

et al. 2024

J. Phys.: Conf. Ser.

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Photovoltaic technology is currently the most widely used solar generation technology in engineering. The particular spectral response band of PV cells cannot convert all solar radiation into electricity. Meanwhile, some radiation will become heat, leading to an increase in cell temperature and a decrease in the conversion efficiency of photovoltaic cells. Spectral splitting technology is an effective technology to improve electrical generation efficiency and can achieve full spectrum utilization of solar energy. The current work involved (1) proposing a novel solar power tower comprehensive utilization system based on spectral splitting; (2) developing a spectral splitting thin film configuration by using the Needle method whose transmittance is higher than 90% against the band range of 510 nm-1, 020 nm; (3) setting up a spectral splitting PV panel whose cover glass is coated the developed film, and replacing the heliostat of SPT system by using such spectral splitting PV panels; (4) predicting the electrical power generation of the spectral splitting-based tower type concentrating solar power system. The results demonstrate that the power generation efficiency of the proposed system is 5.5% and 3.46% higher than PV power generation and SPT systems respectively.

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Direct growth of ZnSnO nano-wires by thermal evaporation technique for thermoelectric applications

Cited by 32 publications

References 34 publications

Study of Electrical Transport Properties of CZTS/MoSe2/glass Heterostructures

Study of Electrical Transport Properties of CZTS/MoSe2/glass Heterostructures

Influence of post annealing temperature on the thermoelectric properties of bulk ZnSnO

Performance prediction of a novel solar power tower system based on spectral beam splitting

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