Enhancement of the power conversion efficiency of organic photovoltaic cells due to Au@SiO2 core shell nanoparticles embedded into a WO3 hole transport layer
- Authors
- Lee, Yong Hun; Abdu, Alfageeh Essa H.; Kim, Dae Hun; KIM, TAE WHAN
- Issue Date
- May-2019
- Publisher
- ELSEVIER
- Keywords
- Organic photovoltaic cells; Localized surface plasmon resonance; Au@SiO2-WO3 nanocomposites; Photon absorption; Hole transport layer
- Citation
- ORGANIC ELECTRONICS, v.68, pp.182 - 186
- Indexed
- SCIE
SCOPUS
- Journal Title
- ORGANIC ELECTRONICS
- Volume
- 68
- Start Page
- 182
- End Page
- 186
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/2623
- DOI
- 10.1016/j.orgel.2019.01.050
- ISSN
- 1566-1199
- Abstract
- Organic photovoltaic (OPV) cells based on Au@SiO2-WO3 nanocomposites (NCs) embedded into a hole transport layer (HTL) were fabricated to enhance the power conversion efficiency (PCE) of those cells. The morphology of the Au@SiO2-WO3 NC film was uniform without any aggregation of the Au nanoparticles (NPs) resulting from the existence in the SiO2 shell of the Au@SiO2 NPs. With the optimized Au@SiO2 NP concentration of 5 wt%, the short-circuit current density and PCE of the OPV cells were enhanced by 125% and 31%, respectively, compared to the OPV cells containing WO3 NPs. The PCE enhancement of the OPV cells with a Au@SiO2 -WO3 NC HTL originated from an increase in the short-circuit current density due to the enhanced the photon absorption resulting from the localized surface plasmon resonance effect and the enhanced hole extraction capability of the Au@SiO2-WO3 NC HTL.
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