Synthesis and characterization of sprayed copper iodide thin films on flexible substrate

Joseph, Nisha; Sebastian, Tina; John, Jilu C.; Augustine, Saji

doi:10.1063/5.0017797

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…CuI films are prepared using various techniques, such as solution process deposition (spray coating [ 29 , 30 ], spin coating [ 31 , 32 ]) [ 33 ], electro-deposition [ 34 ], chemical bath deposition [ 35 ], sputtering [ 36 ], pulse laser deposition [ 37 ], and thermal evaporation [ 38 , 39 ]. Each of these deposition methods has its own advantages and disadvantages.…”

Section: Introductionmentioning

confidence: 99%

Thermally Evaporated Copper Iodide Hole-Transporter for Stable CdS/CdTe Thin-Film Solar Cells

et al. 2022

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This study focuses on fabricating efficient CdS/CdTe thin-film solar cells with thermally evaporated cuprous iodide (CuI) as hole-transporting material (HTM) by replacing Cu back contact in conventional CdS/CdTe solar cells to avoid Cu diffusion. In this study, a simple thermal evaporation method was used for the CuI deposition. The current-voltage characteristic of devices with CuI films of thickness 5 nm to 30 nm was examined under illuminations of 100 mW/cm2 (1 sun) with an Air Mass (AM) of 1.5 filter. A CdS/CdTe solar cell device with thermally evaporated CuI/Au showed power conversion efficiency (PCE) of 6.92% with JSC, VOC, and FF of 21.98 mA/cm2, 0.64 V, and 0.49 under optimized fabrication conditions. Moreover, stability studies show that fabricated CdS/CdTe thin-film solar cells with CuI hole-transporters have better stability than CdS/CdTe thin-film solar cells with Cu/Au back contacts. The significant increase in FF and, hence, PCE, and the stability of CdS/CdTe solar cells with CuI, reveals that Cu diffusion could be avoided by replacing Cu with CuI, which provides good band alignment with CdTe, as confirmed by XPS. Such an electronic band structure alignment allows smooth hole transport from CdTe to CuI, which acts as an electron reflector. Hence, CuI is a promising alternative stable hole-transporter for CdS/CdTe thin-film solar cells that increases the PCE and stability.

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Section: Introductionmentioning

confidence: 99%

Thermally Evaporated Copper Iodide Hole-Transporter for Stable CdS/CdTe Thin-Film Solar Cells

et al. 2022

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Exploring the photocatalytic potential of copper iodide thin films deposited via multiple spray technique

Joseph,

Sebastian,

John

et al. 2024

Applied Surface Science Advances

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The Optical and Structural Properties of CdS Nano particles Prepared By Spray Pyrolysis Technique

Kh.Qassim

Uonis

Khaleel

2023

IJSRST

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Thin films of CdS have been prepared on glass substrates by the chemical spray pyrolysis method at 250oC from solutions including different concentrations of Na2S (0.2 g and 0.4 g). The films were examined using SEM, an X-ray spectrometer, and a UV-Visible spectrometer. The SEM images and X-ray spectrum show that the films were amorphous, and the grain size varied with Na2S concentration. The optical properties and optical constants also varied clearly with Na2S concentration; in addition, the energy gap changed from 2.3 eV to 2.4 eV for both films.

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Synthesis and characterization of sprayed copper iodide thin films on flexible substrate

Cited by 3 publications

References 12 publications

Thermally Evaporated Copper Iodide Hole-Transporter for Stable CdS/CdTe Thin-Film Solar Cells

Thermally Evaporated Copper Iodide Hole-Transporter for Stable CdS/CdTe Thin-Film Solar Cells

Exploring the photocatalytic potential of copper iodide thin films deposited via multiple spray technique

The Optical and Structural Properties of CdS Nano particles Prepared By Spray Pyrolysis Technique

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