scholarly journals Light Absorption Enhancement in Organic Solar Cell by Embedding Ag Nanoparticles and Nanochains within the Active Layer

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Sheng-Qing Zhu ◽  
Tong Zhang ◽  
Xin-Li Guo ◽  
Feng Shan ◽  
Xiao-Yang Zhang
Keyword(s):  
Active Layer ◽  
Light Absorption ◽  
Ag Nanoparticles ◽  
Organic Solar Cell ◽  
Organic Photovoltaic ◽  
Localized Surface Plasmon ◽  
Absorption Enhancement ◽  
Long Wavelength ◽  
Monodisperse Nanoparticles ◽  
Different Types

We numerically investigate the light absorption enhancement of organic photovoltaic cells by embedding Ag nanoparticles and nanochains within the active layer using a finite element method. We analyze the enhancement mechanism of light absorption and systematically study the influence of factors such as the size and the period of silver nanoparticles. The result shows the localized surface plasmon resonance of the particles has a significant influence on the light absorption. Under AM1.5 illumination condition, a relative enhancement with a factor of 107.1% is observed for nanoparticles with a diameter of 30 nm and a period of 200 nm. In addition, different types of nanochain structures have been studied, and we find that, comparing to monodisperse nanoparticles, nanochain structures can further enhance the light absorption because of the stronger light harvesting in the long wavelength range of 600–800 nm.

scholarly journals Effects of Ag Nanocubes with Different Corner Shape on the Absorption Enhancement in Organic Solar Cells

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Feng Shan ◽  
Tong Zhang ◽  
Sheng-Qing Zhu
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Field Enhancement ◽  
Localized Surface Plasmon ◽  
Absorption Enhancement ◽  
Absorption Performance ◽  
Different Shapes ◽  
Ag Ncs ◽  
Metallic Region

The effects of corner shape of silver (Ag) nanocubes (NCs) on optical absorptions of organic solar cells (OSCs) are theoretically investigated by finite element method (FEM) calculations. The absorption of sun light in the active layer is calculated. Significant absorption enhancements have been demonstrated in metallic region with different shapes of Ag NCs, among them corner radius (R) is zero result in the best light absorption performance of up to 55% enhancement with respect to bare OSCs. The origins of increased absorption are believed to be the effects of the huge electric field enhancement and increased scattering upon the excitation of localized surface plasmon resonance (LSPR). Apart from usingR=0, we show thatR=3, 6, and 11.29 of Ag NCs in metallic region of active layer may also result in the maximum comparable absorption enhancement of 49%, 41%, and 28%, respectively. In addition, a significant effect of the period of NCs is observed.

Surface plasmon resonance of silver nano-dendrites improved light absorption in an organic photovoltaic active layer

2020 ◽  
Vol 15 (12) ◽  
pp. 866-871
Author(s):  
Khairus Syifa Hamdan ◽  
Shahino Mah Abdullah ◽  
Noor Azrina Talik ◽  
Khaulah Sulaiman ◽  
Rozalina Zakaria
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Active Layer ◽  
Plasmon Resonance ◽  
Light Absorption ◽  
Organic Photovoltaic

Modelling and calculation of characteristic parameters of the active and buffer layers in organic solar cell

2020 ◽  
Vol 16 ◽  
Author(s):  
Minh Duc Tran ◽  
Nguyen Dinh Lam
Keyword(s):  
Zinc Oxide ◽  
Solar Cell ◽  
Buffer Layer ◽  
Active Layer ◽  
Light Absorption ◽  
Organic Solar Cell ◽  
Buffer Layers ◽  
Electron Transport Layer ◽  
Characteristic Parameters ◽  
Charge Mobility

Background: The active layer not only must have a strong light absorption in the visible spectrum, but must also be sufficient for charge carrier transport to the electrodes. Electrons in conducting polymer transport by hopping between different energy levels, resulted in much lower charge mobility. Therefore, the thickness of active layer must be limited so the separated charge can reach the corresponding electrodes without recombination. However, thin active layer has weaker light absorption, resulting in the low photogenerated current in organic solar cell devices. Furthermore, buffer layers usually have high charge mobility, which in turn would enhance the transportation of charge from the active layer to electrodes. Metal oxides have been studied to be used as cathode buffer layer such as titanium dioxide (TiO2), zinc oxide (ZnO), etc. Objective: In this work, behaviors of the photon-electrical characteristics with variation in thickness of the active (poly(3-hexylthiophene-2,5-diyl) and phenyl-C61 butyric acid methyl ester blend) and buffer (zinc oxide) layers were investigated. Method: The influences of the thickness of the active and buffer layers on characteristic parameters of organic solar cells were investigated by solving the drift and diffusion equation with the photogenerated current given by Hetch equation. Results: The optimum thickness was obtained around 100 nm and below 10 nm for the active and the ZnO buffer layers, respectively. Conclusion: Thinner active layer resulted in lower photocurrent due to poor light absorption while at 150 nm thick and above, PCE of the device reduced rapidly because of high recombination rate of photogenerated electron-hole pairs. ZnO buffer layer was used as an electron transport layer and a hole blocking layer in order to improve the cell’s performance. The addition of ZnO enhanced the PCE up to 2.48 times higher than conventional device.

scholarly journals Controlling absorption enhancement in organic photovoltaic cells by patterning Au nano disks within the active layer

2010 ◽  
Vol 19 (S1) ◽  
pp. A64 ◽  
Author(s):  
Iddo Diukman ◽  
Lior Tzabari ◽  
Nikolai Berkovitch ◽  
Nir Tessler ◽  
Meir Orenstein
Keyword(s):  
Active Layer ◽  
Photovoltaic Cells ◽  
Organic Photovoltaic ◽  
Absorption Enhancement ◽  
Organic Photovoltaic Cells

Degradation Analysis and Degradation Suppression Technology Caused by Light Absorption at Active Layer Facet of GaInAsP Laser Diode

2008 ◽  
Vol 128 (5) ◽  
pp. 732-737
Author(s):  
Hiroyuki Ichikawa ◽  
Masashi Ito ◽  
Chie Fukuda ◽  
Kotaro Hamada ◽  
Akira Yamaguchi ◽  
...  
Keyword(s):  
Active Layer ◽  
Laser Diode ◽  
Light Absorption ◽  
Degradation Analysis
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