Structure and photovoltaic activity of cupric oxide-based thin film solar cells

Motoyoshi, Ryosuke; Oku, Takeo; Kidowaki, Hiroki; Suzuki, Atsushi; Kikuchi, Kenji; Kikuchi, Shiomi; Jeyadevan, Balachandran

doi:10.2109/jcersj2.118.1021

Cited by 30 publications

(11 citation statements)

References 15 publications

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“…In order to fabricate high-performance Cu 2 O solar cells, it is vital to have excellent transport properties (carrier density and mobility, and minority carrier life time) inside Cu 2 O layer and at the junction interface. However, most Cu 2 O films have been prepared on un-textured or polycrystalline substrates by thermal oxidation, electro-deposition, and sputtering methods147891011121314151617181920. As a result, the films have a polycrystalline nature and rough surface morphologies, resulting in very defective films as well as poor interfaces at junctions and/or metal contacts comprising the cells.…”

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confidence: 99%

Heteroepitaxial Cu2O thin film solar cell on metallic substrates

Wee

Huang

Lee

et al. 2015

Sci Rep

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Heteroepitaxial, single-crystal-like Cu2O films on inexpensive, flexible, metallic substrates can potentially be used as absorber layers for fabrication of low-cost, high-performance, non-toxic, earth-abundant solar cells. Here, we report epitaxial growth of Cu2O films on low cost, flexible, textured metallic substrates. Cu2O films were deposited on the metallic templates via pulsed laser deposition under various processing conditions to study the influence of processing parameters on the structural and electronic properties of the films. It is found that pure, epitaxial Cu2O phase without any trace of CuO phase is only formed in a limited deposition window of P(O2) - temperature. The (00l) single-oriented, highly textured, Cu2O films deposited under optimum P(O2) - temperature conditions exhibit excellent electronic properties with carrier mobility in the range of 40–60 cm2 V−1 s−1 and carrier concentration over 1016 cm−3. The power conversion efficiency of 1.65% is demonstrated from a proof-of-concept Cu2O solar cell based on epitaxial Cu2O film prepared on the textured metal substrate.

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confidence: 99%

Heteroepitaxial Cu2O thin film solar cell on metallic substrates

Wee

Huang

Lee

et al. 2015

Sci Rep

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“…CuO has a preferred monoclinic structure, and its band gap ranges within 1.2eV-1.9eV [14]. CuO mostly possesses a direct band gap [2], [11], [13], although some studies have reported that CuO has an indirect band gap [14], [15]. The disparity in the findings of previous studies can be attributed to the complicated crystal structure of CuO and to the fact that CuO may belong to a particular class of compounds known as Mott insulators [16].…”

Section: Introductionmentioning

confidence: 93%

Preparation and Characterization of Mn and Al co-doped Copper Oxide Films

Du¹,

San²,

Gu³

et al. 2019

IJMMM

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In the present work, Mn and Al co-doped copper oxide (CuO-Mn:Al) thin films were deposited on Si(100) and ITO glass substrates by radio frequency (RF) and direct current (DC) magnetron co-sputtering, and then the obtained films were annealed at 800 ℃. The crystal structure of films was evaluated by X-ray diffraction. The surface morphology of films was observed by scanning electronic microscope (SEM). Elemental composition of films was determined by energy dispersive X-Ray diffraction (EDX) and X-ray photoelectron spectroscopy (XPS). The resistivity and optical band gap of CuO-Mn:Al thin films were determined by four probe resistance tester and ultraviolet visible near infrared (UV-Vis-NIR) spectrophotometer, respectively. XRD, EDX and XPS results show the perfect doping of Mn and Al into CuO host lattice. The addition of Mn:Al into copper oxide thin films led to the resistivity decreases. In contrast, the optical band gap values increased upon the addition of Mn:Al.

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“…Motoyoshi fabricated junctions of FTO/CuO/C60 achieving an efficiency of 2.3 x10 --4 [26]. Mittiga achieved higher efficiencies (2 %) with a heterojunction of ITO/ZnO/Cu2O [13].…”

Section: Cuo X and Sno X Thin Filmsmentioning

confidence: 99%

Fabrication and Characterization of Gradient Oxide Thin Films

Eng¹

2016

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Structure and photovoltaic activity of cupric oxide-based thin film solar cells

Cited by 30 publications

References 15 publications

Heteroepitaxial Cu2O thin film solar cell on metallic substrates

Heteroepitaxial Cu2O thin film solar cell on metallic substrates

Preparation and Characterization of Mn and Al co-doped Copper Oxide Films

Fabrication and Characterization of Gradient Oxide Thin Films

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