Improved Efficiency of Bulk-Heterojunction Organic Thin-film Solar Cells by Adding Glycerol to PEDOT:PSS Solutions for Fabricating Buffer Layers

Marumoto, Kazuhiro; Yamaki, Yusuke; Fujimori, Takuya; Mori, Toshiyuki

doi:10.3775/jie.90.461

Cited by 1 publication

(2 citation statements)

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“…The HTLs have flexibility, which may decrease the interface barriers at the ITO/pentacene interface due to the pentacene reorganization. The surface morphologies of the thin films of PEDOT:PSS and G-PEDOT:PSS have been studied with atomic force microscope (AFM) measurements [27,28]. The AFM studies have shown that the surface roughness of the G-PEDOT:PSS film is larger than that of the PEDOT:PSS film [27,28], which may contribute the decrease in the interface barriers due to the pentacene reorganization.…”

Section: Improvement Of the Lifetime Of The Cells By Inserting The Htlsmentioning

confidence: 99%

“…The surface morphologies of the thin films of PEDOT:PSS and G-PEDOT:PSS have been studied with atomic force microscope (AFM) measurements [27,28]. The AFM studies have shown that the surface roughness of the G-PEDOT:PSS film is larger than that of the PEDOT:PSS film [27,28], which may contribute the decrease in the interface barriers due to the pentacene reorganization. For another possible explanation for preventing the performance degradation by the HTLs, the effect of the light absorption of the HTLs may be considered because the interlayer can absorb incident lights and may cause less degradation.…”

Section: Improvement Of the Lifetime Of The Cells By Inserting The Htlsmentioning

confidence: 99%

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Investigation of Degradation Mechanism of Pentacene/C<sub>60</sub> Heterojunction Solar Cells

Marumoto

Fujimori

Yamaki

2017

J. Photopol. Sci. Technol.

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The degradation mechanism of pentacene/C 60 heterojunction solar cells under light irradiation was investigated by evaluating the current density-voltage (J-V) and the incident photon to current conversion efficiency (IPCE) characteristics. The solar cells with a structure of indium tin oxide (ITO)/hole transport layer (HTL)/pentacene/C 60 /BCP/Al were fabricated using the HTL of poly(3,4-ethylenedioxythiophene):poly(4-styrene sulfonate) (PEDOT:PSS) or glycerol-added PEDOT:PSS (G-PEDOT:PSS). A p-type semiconductor pentacene, an ntype semiconductor C 60 , and an exciton blocking layer bathocuproine (BCP) were used for the fabrication. From the analysis of the IPCE characteristics for the cells without the HTLs, the device degradation is found to be caused by the absorption in pentacene at the wavelength range between 320 and 370 nm. Moreover, the insertion of the HTLs into the cells is found to be effective for preventing the performance degradation under light irradiation.

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Section: Improvement Of the Lifetime Of The Cells By Inserting The Htlsmentioning

confidence: 99%

Section: Improvement Of the Lifetime Of The Cells By Inserting The Htlsmentioning

confidence: 99%

Investigation of Degradation Mechanism of Pentacene/C<sub>60</sub> Heterojunction Solar Cells

Marumoto

Fujimori

Yamaki

2017

J. Photopol. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

Improved Efficiency of Bulk-Heterojunction Organic Thin-film Solar Cells by Adding Glycerol to PEDOT:PSS Solutions for Fabricating Buffer Layers

Cited by 1 publication

References 16 publications

Investigation of Degradation Mechanism of Pentacene/C<sub>60</sub> Heterojunction Solar Cells

Investigation of Degradation Mechanism of Pentacene/C<sub>60</sub> Heterojunction Solar Cells

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