Study on the photoelectric conversion efficiency of solar cells with light trapping arrays

Hu, Kexiang; Wangyang, Peihua; Chen, Le; Zhao, Zhouxing; Wang, Qingkang

doi:10.1016/j.ijleo.2017.01.084

Cited by 10 publications

(3 citation statements)

References 15 publications

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“…[50] To figure out the effect of nanodots on the light distribution within the photoactive layer, the cross-sectional electricfield (|E| 2 ) distributions were explored by finite difference time domain (FDTD) numerical simulation. [51,52] As shown in Figure 3g-l, the simple device structures, ITO (100 nm)/ PEDOT:PSS (30 nm)/PM6:BTP-eC9 (120 nm)/TPEA(40 nm) or TPMA (50 nm)/Al (100 nm), were constructed based on the AFM height map (Figure 3b,c) and the scanning electron microscope (SEM) cross-sectional view (Figure 3e,f, and Figure S8, Supporting Information). The intensity of light absorption at a point can be represented by a vector of electric field (E) and magnetic field (H).…”

Section: Resultsmentioning

confidence: 99%

Self‐Aggregated Light‐Trapping Nanodots for Highly Efficient Organic Solar Cells

Gao

Gong

et al. 2022

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The typical thickness of the photoactive layer in organic solar cells (OSCs) is around 100 nm, which limits the absorption efficiency of the incident light and the power conversion efficiency (PCE) of OSCs. Therefore, light‐trapping schemes to reduce the optical losses in the thin photoactive layers are critically important for efficient OSCs. Herein, light‐trapping and electron‐collection dual‐functional small organic molecules, N,N,N′,N′‐tetraphenyloxalamide (TPEA) and N,N,N′,N′‐tetraphenylmalonamide (TPMA), are designed and synthesized by a one‐step acylation reaction. Driven by strong intermolecular force, TPEA and TPMA tend to self‐aggregate into hemispherical light‐trapping nanodots on the photoactive layer, resulting in enhanced light harvesting. Meanwhile, TPEA and TPMA demonstrate high electron mobility and excellent electron‐collection ability. Compared with the device without cathode buffer layer (CBL, PCE = 14.09%), PM6:BTP‐eC9 based OSCs with TPEA and TPMA light‐trapping CBLs demonstrate greatly enhanced PCE of 16.21% and 17.85%, respectively. Furthermore, a record PCE of 19.02% can be achieved for PM6:BTP‐eC9:PC71BM based ternary OSC with TPMA light‐trapping CBL. Moreover, TPMA exhibits a low synthesis cost of only 0.61 $ g−1 with high yield. These findings could open a window for the rational design of multifunctional CBLs for efficient and stable OSCs.

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Section: Resultsmentioning

confidence: 99%

Self‐Aggregated Light‐Trapping Nanodots for Highly Efficient Organic Solar Cells

Gao

Gong

et al. 2022

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“…UV wavelengths are mostly between 100 nanometers and 400 nanometers [14][15], so SnO 2 absorbs more ultraviolet light and absorbs less infrared or visible light. Compared with visible light, the energy of UV light is higher than that of visible light, so that tin oxide can provide more energy for absorbing UV light, because of the higher absorption rate, the generated energy is relatively more, this is conducive to tin oxide as a dye-sensitized solar cell material of the photoanode, in order to improve the photoelectric conversion efficiency of the battery material laid the foundation [16][17]. The directional growth of tin oxide on the surface of the conductive substrate FTO as a photoanode material, through the photocatalytic dye molecules produce charge, the charge quickly and effectively transported out through the electrode to improve the photoelectric conversion ability of the photoanode materials.…”

Section: Resultsmentioning

confidence: 99%

Effect of the Adjuvants on the Properties of Superfine SnO<sub>2</sub> Powders

Song

Pang

Liu

et al. 2018

MSF

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Ultrafine SnO2 is a new type of material, in the field of solar cells and semiconductors have a lot of use. To get different morphology and different properties of tin oxide powder material, making more applications in the field, the effect of the adjuvants on the properties of superfine SnO2 powders were distigated. Through the analysis of experimental results, the conclusions are shown the stronger the alkalinity of the auxiliary agent, the larger the grain size of the obtained particles and the more uniform the particles. When the molar ratio of salt to alkali is more than 1: 4, the amount of alkali is gradually reduced, the particle size is small, the morphology is not uniform and easy to agglomerate. When the molar ratio of salt to alkali is 1: 4, the smaller particle size is shown, the appearance morphology is uneven. The longer the reaction time, the more complete the grain, the more uniform the morphology. Under the condition of SnCl4 concentration of 0.05 mol/L, reaction time is 4 days, salt and alkali molar ratio is 1: 4, holding temperature is 200 °C, the auxiliary agent is NaOH, the size, shape and properties of synthesized SnO2 are the better.

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“…In recent years, unprecedented consumption of fossil fuels has caused serious environmental problems. − It is absolutely critical to explore clean, renewable and sustainable energy, and technology options for alleviating dependence on fossil fuels. , Solar energy is considered as an environmentally friendly and inexhaustible energy. , There are two dominant strategies to monetize solar energy: photoelectric conversion and photothermal conversion. − Photothermal conversion is considered one of the simplest and direct ways to use this abundant energy resource. − …”

Section: Introductionmentioning

confidence: 99%

High Efficiency Solar Membranes Structurally Designed with 3D Core–2D Shell SiO₂@Amino-Carbon Hybrid Advanced Composite for Facile Steam Generation

Guan

Gao

et al. 2020

ACS Appl. Mater. Interfaces

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Steam generation through efficient utilization of solar energy is a promising technology in addressing the challenge of global freshwater shortage and water pollution. One of the biggest hurdles for traditional photothermal membranes to function continuously in a high temperature, high salt, and corrosive environment has been attributed to their rapid decline of mechanical properties. In this work, a highly efficient solar-driven interfacial water evaporation system has been developed via a polydopamine/carbon/silicon (PCS) composite membrane supported by a floating insulation foam substrate. A 3.1 fold increase in the water vaporization rate was recorded compared with the pure water system. The 2D-carbon nanolayer on the surface was successfully prepared by carbonizing low-cost linear polyethylene with a glass fiber (GF) membrane as the substrate, and then the carbon membrane was modified with dopamine to control water transport on the carbon coating and within the glass fiber. The PCS membrane has a high efficiency for solar steam generation owing to high optical absorption and has excellent solar thermal conversion capability. The evaporation rate and solar thermal conversion efficiency of the PCS membrane under simulated sunlight irradiation with 1 sun (1 kW·m–2) are 1.39 kg·m–2·h–1 and 80.4% respectively, which are significantly higher compared to GF membrane, carbon/silicon (CS) membrane, and pure water without a photothermal membrane. The water evaporation system retained high efficiency after 20 cycles under simulated sunlight irradiation of 1 sun. This study provides critical insight on the design and fabrication of a highly efficient and durable evaporation system.

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Study on the photoelectric conversion efficiency of solar cells with light trapping arrays

Cited by 10 publications

References 15 publications

Self‐Aggregated Light‐Trapping Nanodots for Highly Efficient Organic Solar Cells

Self‐Aggregated Light‐Trapping Nanodots for Highly Efficient Organic Solar Cells

Effect of the Adjuvants on the Properties of Superfine SnO<sub>2</sub> Powders

High Efficiency Solar Membranes Structurally Designed with 3D Core–2D Shell SiO₂@Amino-Carbon Hybrid Advanced Composite for Facile Steam Generation

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Study on the photoelectric conversion efficiency of solar cells with light trapping arrays

Cited by 10 publications

References 15 publications

Self‐Aggregated Light‐Trapping Nanodots for Highly Efficient Organic Solar Cells

Self‐Aggregated Light‐Trapping Nanodots for Highly Efficient Organic Solar Cells

Effect of the Adjuvants on the Properties of Superfine SnO<sub>2</sub> Powders

High Efficiency Solar Membranes Structurally Designed with 3D Core–2D Shell SiO2@Amino-Carbon Hybrid Advanced Composite for Facile Steam Generation

Contact Info

Product

Resources

About

High Efficiency Solar Membranes Structurally Designed with 3D Core–2D Shell SiO₂@Amino-Carbon Hybrid Advanced Composite for Facile Steam Generation