<i>p</i>‐CuO/<i>n</i>‐Si heterojunction solar cells with high open circuit voltage and photocurrent through interfacial engineering

Masudy‐Panah, Saeid; Dalapati, Goutam Kumar; Radhakrishnan, K.; Kumar, Avishek; Tan, Hui Ru; Elumalai, Naveen Kumar; Chellappan, Vijila; Tan, Cheng; Chi, Dongzhi

doi:10.1002/pip.2483

Cited by 88 publications

(76 citation statements)

References 43 publications

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“…A significant increase in electrical parameters, namely FF-fill factor, J sc -short-circuit current density and PCE was observed with increasing temperature. The device performance is high at higher temperature due to the better crystal and interface quality as described in a previous study as well [26]. The best-achieved PCE is 0.08% which is primarily due to low J sc and V oc .…”

Section: Resultssupporting

confidence: 54%

Efficient, low-dimensional nanocomposite bilayer CuO/ZnO solar cell at various annealing temperatures

Iqbal

Ikram

Afzal

et al. 2018

Mater Renew Sustain Energy

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In this work, heterojunction, solar cells based on inorganic semiconductors were fabricated at various thermal-annealing temperatures using vapor deposition techniques. The active layer primarily consists of a bilayer comprising a hole transporting copper oxide-CuO and an electron transporting zinc oxide-ZnO nanoparticles. It was observed that the power conversion efficiency-PCE increased from 0.06 to 0.08% with an increase in annealing temperature from 400 to 500 °C, possibly, as a result of increased absorption, in the visible region with increasing temperature. A significant increase in the crystallinity of single and bilayer films was also observed with increasing annealing temperature.

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Section: Resultssupporting

confidence: 54%

Efficient, low-dimensional nanocomposite bilayer CuO/ZnO solar cell at various annealing temperatures

Iqbal

Ikram

Afzal

et al. 2018

Mater Renew Sustain Energy

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“…Indeed, a few recent studies from Dalapati and coworkers demonstrated the possibility of using CuO thin films as efficient absorbers, including doping and codoping, getting 2% PCE. [98,99] The PCE is comparable with results obtained from Cu 2 O thin films. However, the main crit ical point of this research is the use of Si substrate as ntype counterpart to CuO, while most of the research on Earth abun dant solar cells aims at removing the use of silicon due to its high production/processing/manufacturing costs.…”

Section: Wwwadvancedsciencenewscomsupporting

confidence: 79%

Semiconducting Metal Oxide Nanostructures for Water Splitting and Photovoltaics

Concina

Ibupoto

Vomiero

2017

Advanced Energy Materials

121

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conduction and/or optical properties play a critical role, like in microelectronics, [17] sensing, [18,19] biosensing. [20] The possibility of exploring nanoarchi tectures for MOx (such as 0D, 1D, 2D, 3D) structures and extended networks [21,22] ) with electronic features different from their bulk counterpart [23,24] enabled their exploitation in a variety of new fields, in which networking in 3D is critical for a series of physical/chemical processes like light absorption and confinement, [25] sur face reactivity, [18,26] charge exchange/col lection. [27,28] For this reason, the possibility of extending MOx geometry from standard thin films to 3D architectures (including nanowires, nanorods, nanowalls, nano networks, and hierarchical structures), induced a renaissance for these materials, which are considered good candidates for successful application in the real life.The synthesis of composite MOx archi tectures experienced a strong and fast development in the last 15 years, now being a mature branch of Science, able to offer a diversified series of morphologies, shapes, and crystal line assemblies. [22,29] Scheme 1 illustrates the most commonly produced 0D to 2D structures (nanoparticles (NPs), nanowires (NWs), nanotubes (NTs), nanorods (NRs), nanosheets (NSs)) reported in the literature as building blocks to fabricated hier archically assembled geometries and/or nano/microarrays. In their work, [30] Umar and Hahn offer a comprehensive summary of MOx nanostructures, covering the synthesis and application, from both an experimental and theoretical point of view. Chem ical and physical preparation routes are described, including vapor transport and condensation techniques, hydrothermal and electrochemical synthesis, vacuum and nonvacuumbased techniques.While in the past focus was given on the development of new architectures and shapes through a series of physical and chemical routes, [21,22,29,31] now the research is much more focused on the investigation of the functional properties these new structures can offer, such functionalities being tailored for specific enduser applications.The research of new materials for renewable energy sources is one of the fields most benefitting of the outstanding proper ties of MOx. MOx find application in, for instance, solar cells, [32] electrochemical water splitting (WS), photoelectrochemical WS, photocatalysis. [33] In most of the cases, MOx are chosen for the possibility of having 3D networks with maximized specific sur face area, tunable bandgap allowing light absorption in a broad Metal oxide (MOx) semiconducting nanostructures hold the potential for playing a critical role in the development of a new platform for renewable energies, including energy conversion and storage through photovoltaic effect, solar fuels, and water splitting. Earth-abundant MOx nanostructures can be prepared through simple and scalable routes and integrated in operating devices, which enable exploitation of their outstanding optical, electronic, and catalytic properties. In this review, the ...

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“…This increase in V oc and I sc indicates the conversion efficiency improvement in the device with the increase in copper concentration. The enhanced performance of device due to the increase in Cu concentration can be attributed due to the crystalline improvement and the change in barrier heights [31]. Enhancement in grain size due to the increased Cu concentration can increase the carrier transport by reducing the grain boundaries.…”

Section: Photoresponse Studymentioning

confidence: 99%

“…Similarly, the heterojunction of p-CuO/n-Si is also attracted owing to the easy fabrication of CuO thin film on wide variety of substrates. Even though the CuO is attractive to form heterojunction with silicon, the works on p-CuO/n-Si are limited [30,31] Hence, in this work, we have fabricated p-CuO/n-Si heterojunction solar cells using SILAR-prepared CuO thin films and studied the solar cell properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of bath concentration on the growth and photovoltaic response of SILAR-deposited CuO thin films

Visalakshi

Kannan

Valanarasu³

et al. 2015

Appl. Phys. A

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Solar cell property of p-CuO/n-Si heterojunction was investigated using SILAR-deposited CuO thin films. The effects of copper salt concentration on the growth of CuO films and its effect on the efficiency in solar cell conversion were investigated. Structural, morphological, optical and electrical studies of the CuO thin films deposited at 90°C with different copper sulphate concentrations are reported. Crystallinity of the film is found to increase with the increase in copper sulphate concentration. The measured Raman spectrum of the deposited film showed peaks corresponding to CuO phase. It is observed by the SEM that the film is homogeneous fully covering the substrate. The optical band gap of the deposited film has exhibited a decrease in band gap from 1.76 to 1.57 eV with the increase in copper sulphate concentration. Solar cell device was constructed using the p-CuO film deposited on n-silicon substrate, and its photovoltaic response was measured. It showed increasing photoresponse with increasing concentration of copper sulphate.

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p‐CuO/n‐Si heterojunction solar cells with high open circuit voltage and photocurrent through interfacial engineering

Cited by 88 publications

References 43 publications

Efficient, low-dimensional nanocomposite bilayer CuO/ZnO solar cell at various annealing temperatures

Efficient, low-dimensional nanocomposite bilayer CuO/ZnO solar cell at various annealing temperatures

Semiconducting Metal Oxide Nanostructures for Water Splitting and Photovoltaics

Effect of bath concentration on the growth and photovoltaic response of SILAR-deposited CuO thin films

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