Journal
MATERIALS LETTERS
Volume 312, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2021.131466
Keywords
PEDOT: PSS; Si; Thin films; Heterojunction solar cells
Funding
- YNU East-Land Scholar Research Fund [C176220200]
- Construction Fund of International Joint Research Centre for Optoelectronic and Energy Materials by Yunnan Provincial Department of Finance [2017IB033]
- Yunnan University Action Plan of Serve the Yunnan Province [2016MS15]
- Yunling Scholars Fund of Yunnan Prov-ince Ten Thousand Talents Program [KC194317]
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Researchers have designed a novel hybrid nanostructure by uniformly loading Co9S8 nanoparticles onto the surface of multi-walled carbon nanotubes as a dopant, successfully improving the performance of PEDOT:PSS-Si heterojunction solar cells.
d Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)-Si heterojunction solar cells (HSCs) have the characteristics of low cost and simple preparation process, which is expected to realize the manufacture of high-performance solar cells. Among them, The modification of PEDOT:PSS has become the most important and feasible method to improve the photoelectric conversion efficiency (PCE) of PEDOT:PSS-Si HSCs. Here, we design a novel hybrid nanostructure of Co9S8 nanoparticles uniformly loaded onto the surface of multi-walled carbon nanotubes (Co9S8@N,P-MWCNT) as a dopant to improve the performance of PEDOT:PSS. The analysis of experimental data reveals that the dopant could effectively suppress the recombination losses of PEDOT:PSS-Si interface, which is conducive to the improvement of open circuit voltage (V-oc). The HSCs reaching a PCE of 13.44%, while achieving a high V-oc of 645 mV.
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