Enhanced Conversion Efficiency of III–V Triple-junction Solar Cells with Graphene Quantum Dots

Lin, Tzu-Jen; Santiago, Svette Reina Merden; Zheng, Jie An; Chao, Yu Chiang; Yuan, Chi‐Tsu; Shen, Ji Lin; Wu, Cheng‐Hsien; Lin, Ching-Yen; Liu, Wei‐Ren; Cheng, Ming; Chou, Wu Ching

doi:10.1038/srep39163

Cited by 13 publications

(5 citation statements)

References 29 publications

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“…From the characteristic of EQE shown in Fig.3(b), when the PbS coating layer is thin (1 layer), the quantum efficiency of solar cells increases in the entire absorption range of the cell. This demonstrates that the quantum dot layer has played an important role in the transformation of ultraviolet region energy and the ability to optimize reflection at the surface, enhancing quantum efficiency in the entire region [9]. When the number of PbS quantum dots layer is 2 layers, the ability to transfer energy in the ultraviolet region tends to slightly decrease, but the quantum efficiency in the visible region is still improved.…”

Section: Investigation Devicesmentioning

confidence: 94%

Influences of PbS Quantum Dot Layers on Power Conversion Efficiency of Single Junction GaAs Solar Cells

Lâm

2019

MaP

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PbS quantum dots were coated on the surface of single junction GaAs solar cells by a drop coating method. The thickness of PbS quantum dot layer was controlled through changing the number of coating layers. The influences of PbS coating layers on characteristics of GaAs single junction solar cells were investigated through I-V characteristic measurements, optical reflectance spectra, and quantum efficiencies. The results indicated that, the short-circuit current can be improved up to 15% with two PbS coating layers. Other parameters such as Voc and FF are hardly affected by the number of PbS coating layers. Based on the results of optical reflectance spectra and quantum efficiencies, the enhancement in the short-circuit current can be attributed to the surface antireflection layer and the ability to transfer high energy photon-generated charge carriers.

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Section: Investigation Devicesmentioning

confidence: 94%

Influences of PbS Quantum Dot Layers on Power Conversion Efficiency of Single Junction GaAs Solar Cells

Lâm

2019

MaP

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“…A new alternative to photoelectrode systems inside complex technological systems for the detection and control of light in a wide range of optical regions depends on the optical properties of the nanomaterials/semiconductors [ 3 , 4 ]. III–V semiconductors are commonly used for efficient photovoltaic applications because of their direct beam vacuum, high absorbance of sunlight, high electron mobility, and controlled crystal evolution [ 5 , 6 , 7 ]. Under light radiation, photoinduced electrons and holes represent the sensitivity of nanomaterials to photon detection [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Decoration of Poly-3-methyl Aniline with As(III) Oxide and Hydroxide as an Effective Photoelectrode for Electroanalytical Photon Sensing with Photodiode-like Behavior

2023

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This study achieved the decoration of poly-3-methyl aniline (P3MA) with As2O3–As(OH)3 using K2S2O8 and NaAsO2 on the 3-methyl aniline monomer. This resulted in a highly porous nanocomposite polymer composite with wide absorption optical behavior, an average crystalline size of 22 nm, and a 1.73 eV bandgap. The photoelectrode exhibited a great electrical response for electroanalytical applications, such as photon sensing and photodiodes, with a Jph of 0.015 mA/cm2 and Jo of 0.004 mA/cm2. The variable Jph values ranged from 0.015 to 0.010 mA/cm2 under various monochromatic filters from 340 to 730 nm, which demonstrates high sensitivity to wavelengths. Effective photon numbers were calculated to be 8.0 × 1021 and 5.6 × 1021 photons/s for these wavelength values, and the photoresponsivity (R) values were 0.16 and 0.10 mA/W, respectively. These high sensitivities make the nanocomposite material a promising candidate for use in photodetectors and photodiodes, with potential for commercial applications in highly technological systems and devices. Additionally, the material opens up possibilities for the development of photodiodes using n- and p-type materials.

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“…Light field display can be realized with various methods [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ], among which multi-projection scheme is a common technique [ 17 , 18 ]. Smooth motion parallax and high definition can be achieved with high dense projectors, but considerable calibration efforts and complex system arrangement present technique difficulties.…”

Section: Introductionmentioning

confidence: 99%

Directional and Eye-Tracking Light Field Display with Efficient Rendering and Illumination

Liang

Chen

et al. 2023

Micromachines

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Current efforts with light field displays are mainly concentrated on the widest possible viewing angle, while a single viewer only needs to view the display in a specific viewing direction. To make the light field display a practical practice, a super multi-view light field display is proposed to compress the information in the viewing zone of a single user by reducing the redundant viewpoints. A quasi-directional backlight is proposed, and a lenticular lens array is applied to achieve the restricted viewing zone. The eye-tracking technique is applied to extend the viewing area. Experimental results show that the proposed scheme can present a vivid 3D scene with smooth motion parallax. Only 16.7% conventional light field display data are required to achieve 3D display. Furthermore, an illumination power of 3.5 watt is sufficient to lighten a 31.5-inch light field display, which takes up 1.5% of the illumination power required for planar display of similar configuration.

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Enhanced Conversion Efficiency of III–V Triple-junction Solar Cells with Graphene Quantum Dots

Cited by 13 publications

References 29 publications

Influences of PbS Quantum Dot Layers on Power Conversion Efficiency of Single Junction GaAs Solar Cells

Influences of PbS Quantum Dot Layers on Power Conversion Efficiency of Single Junction GaAs Solar Cells

Decoration of Poly-3-methyl Aniline with As(III) Oxide and Hydroxide as an Effective Photoelectrode for Electroanalytical Photon Sensing with Photodiode-like Behavior

Directional and Eye-Tracking Light Field Display with Efficient Rendering and Illumination

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