A regular rippled pattern formed by the molecular self-organization of polyvinylpyrrolidone encapsulated Ag nanoparticles: a high transmissive coating for efficiency enhancement of c-Si solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 5667-5673 ◽  
Author(s):  
Sudarshana Banerjee ◽  
Ajoy K. Saha ◽  
Bibhutibhushan Show ◽  
Jhuma Ganguly ◽  
Raghunath Bhattacharyay ◽  
...  

Formation of PVP encapsulated Ag NPs with a regular rippled structure caused by molecular self organization is reported. Such pattern is supposed to act as an anti-reflection coating as well as plasmonic layer, for better light harvesting.

Nanomaterials ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 815 ◽  
Author(s):  
Jiabin Hao ◽  
Huiying Hao ◽  
Jianfeng Li ◽  
Lei Shi ◽  
Tingting Zhong ◽  
...  

In this contribution, the efficiencies of perovskite solar cells have been further enhanced, based on optical optimization studies. The photovoltaic devices with textured perovskite film can be obtained and a power conversion efficiency (PCE) of the textured fluorine-doped tin oxide (FTO)/Ag nanoparticles (NPs) embedded in c-TiO2/m-TiO2/CH3NH3PbI3/Spiro-OMeTAD/Au showed 33.7% enhancement, and a maximum of up to 14.01% was achieved. The efficiency enhancement can be attributed to the light trapping effect caused by the textured FTO and the incorporated Ag NPs, which can enhance scattering to extend the optical pathway in the photoactive layer of the solar cell. Interestingly, aside from enhanced light absorption, the charge transport characteristics of the devices can be improved by optimizing Ag NPs loading levels, which is due to the localized surface plasmon resonance (LSPR) from the incorporated Ag NPs. This light trapping strategy helps to provide an appropriated management for optical optimization of perovskite solar cells.


2019 ◽  
Vol 6 (4) ◽  
pp. 045012 ◽  
Author(s):  
Sarita Marom ◽  
Monique Dorresteijn ◽  
Ritika Modi ◽  
Alessandro Podestà ◽  
Marcel Di Vece

2021 ◽  
Author(s):  
Biraj Shougaijam ◽  
Salam Surjit Singh

Abstract In this work, vertically aligned TiO 2 -Nanowires (TiO 2 -NWs) and Ag Nanoparticles assisted TiO 2 Nanowires (TAT-NWs) were deposited on glass and flexible PET substrates using the Glancing Angle Deposition (GLAD) technique. The morphology and structural analysis of the samples manifest the successful deposition of vertically aligned TiO 2 -NWs and TAT-NWs. The HR-TEM image of TiO 2 -NWs shows the polycrystalline nature. Further, the XRD result confirms the polycrystalline nature of both the TiO 2 -NWs and TAT-NWs samples. Besides, the HR-TEM image confirms the presence of small crystal grains of Ag Nanoparticles (Ag-NPs) at the mid of the annealed TAT-NWs. It is evident from the Selective Area Electron Diffraction (SAED) analysis of the TiO 2 -NWs and annealed TAT-NWs that the crystallinity of TiO 2 present in the annealed TAT-NWs improves after annealing. The absorption spectrum analysis of TAT-NWs deposited on glass substrate shows enhance absorption peak in the visible region with a maximum peak at ~463 nm wavelength compare to the TiO 2 -NWs, which may be attributed to the Surface Plasmon Resonance (SPR) effect of Ag-NPs. Further, it is interesting to observe that the TAT-NWs deposited on PET substrate show further absorption enhancement in the UV and visible region. In addition, the Photoluminescence analysis reveals that the bandgap of the TiO 2 -NWs is ~3.12 eV, which supports the bandgap extracted from the Tauc plot. Therefore, the proposed method of fabricating TAT-NWs on glass and flexible ITO coated PET substrate using the GLAD technique may be applicable for developing novel photoanode for Dye-sensitized Solar Cells (DSSCs) and other optoelectronic applications.


2006 ◽  
Vol 89 (11) ◽  
pp. 111111 ◽  
Author(s):  
L. Zeng ◽  
Y. Yi ◽  
C. Hong ◽  
J. Liu ◽  
N. Feng ◽  
...  

2012 ◽  
Vol 51 (4R) ◽  
pp. 042302 ◽  
Author(s):  
Hidenori Mizuno ◽  
Hitoshi Sai ◽  
Koji Matsubara ◽  
Michio Kondo

RSC Advances ◽  
2015 ◽  
Vol 5 (74) ◽  
pp. 59895-59902 ◽  
Author(s):  
Hyun-Young Kim ◽  
Jung Sang Suh

We developed a panchromatic quasi-monolayer of Ag NPs and applied this technique to fabricate DSSCs.


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