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Substantial Improvement of Short Wavelength Response in n-SiNW/PEDOT:PSS Solar Cell.

Ge Z, Xu L, Cao Y, Wu T, Song H, Ma Z, Xu J, Chen K - Nanoscale Res Lett (2015)

Bottom Line: We fabricated more isolated silicon nanowires with the diluted etching solution.And the J sc of the hybrid solar cell with more isolated nanowires has a significant enhancement, from 30.1 to 33.2 mA/cm(2).The remarkable EQE in the wavelength region of 300 and 600 nm was also obtained, which are in excess of 80 %.

View Article: PubMed Central - PubMed

Affiliation: School of Electronic Science and Engineering and Collaborative Innovation Center of Advanced Microstructures of National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, People's Republic of China.

ABSTRACT
We report herein on the effects of silicon nanowire with different morphology on the device performance of n-SiNW/PEDOT:PSS hybrid solar cells. The power conversion efficiency (PCE) and external quantum efficiency (EQE) of the SiNW/PEDOT:PSS hybrid solar cells can be optimized by varying the length of the silicon nanowires. The optimal length of silicon nanowires is 0.23 μm, and the hybrid solar cell with the optimal length has the V oc of 569 mV, J sc of 30.1 mA/cm(2), and PCE of 9.3 %. We fabricated more isolated silicon nanowires with the diluted etching solution. And the J sc of the hybrid solar cell with more isolated nanowires has a significant enhancement, from 30.1 to 33.2 mA/cm(2). The remarkable EQE in the wavelength region of 300 and 600 nm was also obtained, which are in excess of 80 %. Our work provides a simple method to substantially improve the EQE of hybrid solar cell in the short wavelength region.

No MeSH data available.


a Current density-voltage characteristics of the two hybrid solar cells under a simulated AM1.5G illumination condition. b The EQE of the two SiNW/PEDOT:PSS hybrid solar cells
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Fig7: a Current density-voltage characteristics of the two hybrid solar cells under a simulated AM1.5G illumination condition. b The EQE of the two SiNW/PEDOT:PSS hybrid solar cells

Mentions: Figure 7a shows the current density-voltage characteristics of hybrid solar cells etched with different concentration etchants under 100 mW/cm2 air mass 1.5 global (AM 1.5G) illumination. Their photovoltaic parameters of Jsc, Voc, FF, and PCE, calculated from the J–V data, are summarized in Table 2. When the hybrid solar cell is made from the silicon nanowire etched by diluted solution, the Jsc has a significant enhancement, from 30.1 to 33.2 mA/cm2. As a result, the PCE of the cell increases from 9.3 to 9.8 %. The Voc and FF of the hybrid solar cells with different morphology of silicon nanowires have no significant change.Fig. 7


Substantial Improvement of Short Wavelength Response in n-SiNW/PEDOT:PSS Solar Cell.

Ge Z, Xu L, Cao Y, Wu T, Song H, Ma Z, Xu J, Chen K - Nanoscale Res Lett (2015)

a Current density-voltage characteristics of the two hybrid solar cells under a simulated AM1.5G illumination condition. b The EQE of the two SiNW/PEDOT:PSS hybrid solar cells
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4539312&req=5

Fig7: a Current density-voltage characteristics of the two hybrid solar cells under a simulated AM1.5G illumination condition. b The EQE of the two SiNW/PEDOT:PSS hybrid solar cells
Mentions: Figure 7a shows the current density-voltage characteristics of hybrid solar cells etched with different concentration etchants under 100 mW/cm2 air mass 1.5 global (AM 1.5G) illumination. Their photovoltaic parameters of Jsc, Voc, FF, and PCE, calculated from the J–V data, are summarized in Table 2. When the hybrid solar cell is made from the silicon nanowire etched by diluted solution, the Jsc has a significant enhancement, from 30.1 to 33.2 mA/cm2. As a result, the PCE of the cell increases from 9.3 to 9.8 %. The Voc and FF of the hybrid solar cells with different morphology of silicon nanowires have no significant change.Fig. 7

Bottom Line: We fabricated more isolated silicon nanowires with the diluted etching solution.And the J sc of the hybrid solar cell with more isolated nanowires has a significant enhancement, from 30.1 to 33.2 mA/cm(2).The remarkable EQE in the wavelength region of 300 and 600 nm was also obtained, which are in excess of 80 %.

View Article: PubMed Central - PubMed

Affiliation: School of Electronic Science and Engineering and Collaborative Innovation Center of Advanced Microstructures of National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, People's Republic of China.

ABSTRACT
We report herein on the effects of silicon nanowire with different morphology on the device performance of n-SiNW/PEDOT:PSS hybrid solar cells. The power conversion efficiency (PCE) and external quantum efficiency (EQE) of the SiNW/PEDOT:PSS hybrid solar cells can be optimized by varying the length of the silicon nanowires. The optimal length of silicon nanowires is 0.23 μm, and the hybrid solar cell with the optimal length has the V oc of 569 mV, J sc of 30.1 mA/cm(2), and PCE of 9.3 %. We fabricated more isolated silicon nanowires with the diluted etching solution. And the J sc of the hybrid solar cell with more isolated nanowires has a significant enhancement, from 30.1 to 33.2 mA/cm(2). The remarkable EQE in the wavelength region of 300 and 600 nm was also obtained, which are in excess of 80 %. Our work provides a simple method to substantially improve the EQE of hybrid solar cell in the short wavelength region.

No MeSH data available.