Electrodeposition of n-CdSe/p-Cu2Se Heterojunction Solar Cells

Shaikh, Arif V.; Sayyed, Saima G.; Naeem, Sajid; Mane, Rajaram S.

doi:10.30919/es8d1124

Cited by 9 publications

(7 citation statements)

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“…The Hall effect was next explored, and the Hall coefficient was derived with the use of an equation [16]. RH = VHxt / IxB………………………………… (7) Where t is the film thickness (1500 Å), and B represent the magnetic field (0.257 x 10 -4 Tesla).…”

Section: Hall Effectmentioning

confidence: 99%

“…According to equation (7) and Figure 4, the (-ve) sign of the Hall Coefficient (RH) indicates that the carriers are electrons and semi-conductor is n-type. The coefficient of Hall (RH) was (-6.5*10 2 m 2 /c) this result is confirming that the CdSe is n-type.…”

Section: Hall Effectmentioning

confidence: 99%

“…. Shaikh et al, have reported that the fabrication of n-CdSe/p-Cu2Se Heterojunction Solar Cells And found the efficiency of the power conversion is 0.67% which needs to be improved either by engineering interfacial layer or on doping fast charge transport materials that endow smaller charge transfer resistance[7].…”

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confidence: 99%

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Fabrication of CdSe/Si Nanostructures Thin Films Heterojunction by DC Sputtering for Solar Cell Applications

Khudiar¹

2022

basjs

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CdSe nanocrystalin thin films were deposited onto silicon wafer using DC plasma sputtering method. Quantification of the crystalline size of CdSe thin films has been achieved by X-ray diffraction (XRD) technique. Otical properties of prepared CdSe thin films including absorption coefficient and optical band gap, have been analyzed and evaluated in the wavelength range of 250-850 nm. In addition, the current-voltage characteristics of a CdSe/Si hetero-junction have been examined, and the results show that lighting causes an increase in photo-current. The open circuit voltage was 2.0 V and the short circuit current was 0.18 mA. The abbreviation open circuit current is Voc.

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Section: Hall Effectmentioning

confidence: 99%

Section: Hall Effectmentioning

confidence: 99%

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Fabrication of CdSe/Si Nanostructures Thin Films Heterojunction by DC Sputtering for Solar Cell Applications

Khudiar¹

2022

basjs

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“…But in present decade, the concern such as global warming due to continuous use of fossil fuels results in environment degradation. So, presently, the scientist looks for alternatives way of producing or storing energy especially from green sources such as super capacitors, [1,2] solar cells, [3,4] or batteries [5,6] or advances and applications of phase change materials (PCMs) and PCMs-based technologies. [7][8][9] Energy harvesting from devices based on composites [10] and other type of piezoelectric devices [11][12][13][14] were recently found promising way to produce impressive voltage with high durability.…”

Section: Introductionmentioning

confidence: 99%

Stretchable piezo‐electric energy harvesting device with high durability using carbon nanomaterials with different structure and their synergism with molybdenum disulfide

Kumar

Manikkavel

Kumar

et al. 2022

Vinyl Additive Technology

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Recently, polymer composite based stretchable piezo‐electric energy harvesting device have attracted a great attention in composite industry. At laboratory scale, these piezo‐electric devices have ability to generate impressive voltage (~8 V) with high durability (>0.5 million cycles) depending upon nature of the material used in electrode and substrate. In this work, composites were prepared by mixing room temperature vulcanized silicone rubber (RTV‐SR) and nanofillers such as multi‐wall carbon nanotube (MWCNT), nano‐carbon black (nano‐CB), graphite nanoplatelets (GNP), in single or hybrid with molybdenum disulfide (MoS2). These fillers differentiate on basis of their structure ranging from 0‐dimensional (0‐D) to 3‐D. The effects of these structures on mechanical properties are demonstrated. Among them, MWCNT with 1‐D, tube shape morphology, high aspect ratio of 65 shows dominating mechanical properties even at 2 per hundred parts of rubber (phr) loading followed by nano‐CB, GNP at 8 phr and MoS2 at 2 phr. A synergistic effect in mechanical properties between hybrid fillers such as tensile strength and fracture strain was demonstrated. In the end, the composites were tested for piezo‐electric energy generation and durability cycles for the best candidate such as MWCNT was tested for up to 0.5 million cycles was demonstrated.

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“…Therefore, the design of an engineering system requires consideration of its heat dissipation, which refers to the release of heat generated during the operation of the system to the external environment. In addition, thermal management with engineering systems and materials is important in collecting solar energy and its conversion [1][2][3]. Similar to various systems that generate heat, heat dissipation is a critical issue affecting the performance of integrated light-emitting diode (LED) systems [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Thermal Radiative Copper Oxide Layer for Enhancing Heat Dissipation of Metal Surface

Park

Kim

et al. 2021

Nanomaterials

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The heat dissipation of a metal heat sink for passive cooling can be enhanced by surface modifications to increase its thermal emissivity, which is reflected by a darker surface appearance. In this study, copper electrodeposition followed by heat treatment was applied to a copper substrate. The heat treatment formed a nanoporous oxide layer containing CuO and Cu2O, which has a dark blackish color and therefore increased the thermal emissivity of the surface. The heat dissipation performance was evaluated using the sample as a heat sink for an LED module. The surface-treated copper heat sink with a high thermal emissivity oxide layer enhanced the heat dissipation of the LED module and allowed it to be operated at a lower temperature. With an increase in the heat treatment, the thermal emissivity increases to 0.865, but the thermal diffusivity is lower than the copper substrate by ~12%. These results indicate that the oxide layer is a thermal barrier for heat transfer, thus optimization between the oxide thickness and thermal emissivity is required by evaluating heat dissipation performance in operating conditions. In this study, an oxide layer with an emissivity of 0.857 and ~5% lower thermal diffusivity than the copper substrate showed the lowest LED operating temperature.

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Electrodeposition of n-CdSe/p-Cu2Se Heterojunction Solar Cells

Cited by 9 publications

References 0 publications

Fabrication of CdSe/Si Nanostructures Thin Films Heterojunction by DC Sputtering for Solar Cell Applications

Fabrication of CdSe/Si Nanostructures Thin Films Heterojunction by DC Sputtering for Solar Cell Applications

Stretchable piezo‐electric energy harvesting device with high durability using carbon nanomaterials with different structure and their synergism with molybdenum disulfide

Thermal Radiative Copper Oxide Layer for Enhancing Heat Dissipation of Metal Surface

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