Transparent conductive films based on quantum tunneling

Cai

2021

Self Cite

Based on high efficiency and wide spectral splitter film and Fresnel lens, we have theoretically investigated a full solar-spectrum power-generation system. Designed nano-multilayers are fabricated on Fresnel lens. Then short wavelengths (400 nm ~ 1100 nm) of solar-spectrum can be transmitted 95% to the solar cell, and long wavelengths (1100 nm ~ 2500 nm) of solar-spectrum can be reflected 90% and focused to the thermoelectric cell. This system can combine the efficiency of solar cells and thermoelectric cells to generate electricity across the entire solar spectrum. In theory, the limit for total conversion efficiency is 56.64%  . INDEX TERMSFresnel lens, full solar-spectrum, solar cell, thermoelectric cell.

Section: Splitter Filmmentioning

confidence: 99%

Full Solar-Spectrum Power-Generation System Based on High Efficiency and Wide Spectral Splitter Film and Fresnel Lens

Cai

2021

Self Cite

“…Generally, OEDs structure is based on TCSs, such as FTO (fluorine-doped tin oxide) glass, ITO (indium tin oxide) glass, FTO PEN (polyethylene naphthalate) plastic, ITO PEN, FTO PET (polyethylene terephthalate), ITO PET, and so on [1][2][3][4][5][6][7][8][9]25]. TCS is constructed of substrate and transparent conductive film.…”

Section: Principlementioning

confidence: 99%

“…Transparent conductive substrates (TCSs) are characterized by their high transmission of visible light and simultaneously very high electrical DC (direct current) sheet conductivity [1][2][3][4][5][6]. TCSs can be applied as the transparent electrodes, which are the key component of optoelectronic devices (OEDs) for information (displays) and energy (photovoltaics, window glass and architectural) technologies [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Improving External Quantum Efficiency by Subwavelength Nano Multi-Layered Structures for Optoelectronic Devices

Zhou

et al. 2020

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Based on thin film optics (TFO) and finite element method (FEM), we have theoretically investigated improving external quantum efficiency (EQE) by anti-reflection (AR) films constructed from subwavelength nano multi-layers (NML) of low and high index materials, where the low and high index materials are MgF2 and Ta2O5, respectively. This kind of NML dielectric structures have the advantages of low-cost and flexible. Three kinds of substrates have been studied here, which are glass, polyethylene naphthalate (PEN), and polyethylene terephthalate (PET), respectively. TFO theory has been used to obtain the transmittance and reflectance, which agrees well with FEM results. For NML structure, TFO is more efficient than FEM in terms of calculation time and accuracy. The average AR effects (AAREs) are about 3.69%, 3.46% and 3.07% on glass substrate, about 6.15%, 5.56% and 5.02% on PEN substrate, and about 5.06%, 4.62% and 4.17% on PET substrate, for AR bands (ARBs) 350~800 nm, 350~1100 nm and 350~1500 nm, respectively. The results also reflect that wider AR bandwidth needs more NML layers. In practice, this kind of AR films can be widely applicable to enhance the EQE of the optoelectronic devices (OEDs). INDEX TERMS Anti-reflection, nano multi-layers, thin film optics, finite element method.

“…Commercial software for optical film design based on relevant theories is widely used to guide the industrial production of optical film, such as optical film design for optical lenses. Some works also use the theory of thin film optics to guide the scientific research of design, analysis, and monitoring of optical film coatings [22]- [26].…”

Section: Introductionmentioning

confidence: 99%

Low-Cost and Flexible Anti-Reflection Films Constructed From Nano Multi-Layers of TiO₂ and SiO₂ for Perovskite Solar Cells

Huang

et al. 2019

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We theoretically investigate the anti-reflection (AR) films based on nano multi-layers (NML) of TiO 2 and SiO 2. This kind of NML dielectric structures have the advantages of low-cost and flexible. Six kinds of transparent conductive substrate (TCS) have been studied here, which are ITO (indium tin oxide) glass, FTO (fluorine-doped tin oxide) glass, ITO PEN (polyethylene naphthalate), FTO PEN, ITO PET (polyethylene terephthalate), and FTO PET, respectively. The AR effect is about 2.3825% for FTO glass substrate, about 3.4232% for ITO glass substrate, about 5.2703% for FTO PEN substrate, about 5.0914% for ITO PEN, about 3.8584% for FTO PET, and about 4.2371% for ITO PET. In practice, this kind of AR films can be widely applicable to enhance the external quantum efficiency (EQE) of the solar cells, and then improve the power conversion efficiency (PCE). Finally, the improved PCE of perovskite solar cells based on our NML AR films is theoretically obtained. INDEX TERMS Anti-reflection, nano multi-layers, perovskite solar cells.