Control of Open Voltage of Organic Photovoltaic Cells Using Fluorinated Self-Assembled Monolayer

Mori, Toshiyuki; Zhang, Fujun; Furuhashi, Hideo; Nishikawa, Takao

doi:10.2494/photopolymer.26.377

Cited by 7 publications

(7 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such values are very promising for the OPV HTL application since the highest WF difference between the anode and the cathode, is a pre-requisite for maximizing the open-circuit voltage (V oc ) of solar cells. [39] Although it might seem unusual to deposit an active layer on an interlayer without respecting the solvent orthogonality, functional devices were obtained. Indeed, after having carefully evaporated the CPME used to deposit the doped PTQ10, thanks to thermal annealing at 110 °C for 5 min, the active layer is deposited from chloroform, a highly volatile solvent, to avoid its penetration in the HTL.…”

Section: Resultsmentioning

confidence: 99%

Homojunction Doping for Efficient Hole Extraction in Polymer Solar Cells

et al. 2022

View full text Add to dashboard Cite

Hole transporting layers (HTL) in polymer solar cells remain a subject of importance to enable enhanced efficiency and stability compared to the benchmark PEDOT:PSS. The design of an interlayer based on the same polymer as the one used in the bulk heterojunction (BHJ) is reported here. In this HTL, the polymer is doped, thus forming a so‐called homojunction. The conductivity of PTQ10 doped with magic blue is optimized for varying dopant concentrations. The resulting solar cells show competing power conversion efficiency as the widely used PEDOT:PSS and improved stability. This strategy opens the route toward the development of deep‐lying work function HTL and is promising for future BHJ materials with deep‐lying highest occupied molecular orbital polymers.

show abstract

Section: Resultsmentioning

confidence: 99%

Homojunction Doping for Efficient Hole Extraction in Polymer Solar Cells

et al. 2022

View full text Add to dashboard Cite

show abstract

“…We have reported on the relationship between the photovoltaic (PV) properties and deposition processes for dye-sensitized solar cells [26][27][28], OPVs [29][30][31][32] and organic perovskite solar cells [33][34][35][36][37][38]. In particular, we proposed direct annealing due to Joule heat [31] and the use of C 60 with phenyl-C 61 -butyric-acid-methyl ester (PCBM) as an additive [32].…”

Section: Introductionmentioning

confidence: 99%

Development of Environmentally Controlled Desktop Spray Coater and Optimization of Deposition Conditions for Organic Thin-film Photovoltaic Cells

Mori

Kobayashi²,

Akenaga³

et al. 2018

J. Photopol. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

Organic thin-film photovoltaic cells (OPV) consisting of poly(3-hexylthiophene-2,5-diyl) (P3HT) and phenyl-C 61 -butyric-acid-methyl ester (PCBM) were deposited with our developed desktop spray coater, rCoater. Organic thin films were deposited using two different spray nozzles: a two-fluid spray nozzle and a rotary-atomizing spray nozzle. The deposition conditions were optimized and the photovoltaic (PV) characteristics were measured. OPVs deposited using the two-fluid spray nozzle under optimized conditions exhibited better PV performance than those deposited using a spin coat method. The organic thin films fabricated using the two-fluid spray had a stacked structure by many small disk-like grains.

show abstract

“…We investigated the stability of film morphology [20], the carrier injection and device properties [21][22][23][24][25][26][27], and the formation of nano-dot [28] by preparation of fluorinated alkyl silole derivative on indium-tin-oxide (ITO). Especially it is important that the introduction of fluorinated self-assembled monolayer (FSAM) based on alkyl silole derivative improves the hole injection from ITO into a hole-transport material as a hole injection layer.…”

Section: Introductionmentioning

confidence: 99%

Estimation of Electron Current in Organic Light-Emitting Diodes Using an Operating Point Model

Mori

Imanishi

Nishikawa

2016

J. Photopol. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

We propose the evaluation approach of the electron current in the bilayer organic light-emitting diode (OLED) using its device current and the hole current of hole transport material. The conduction current whose 50 nm-thick diamine derivative (-NPD) layer is deposited on a fluorinated self-assembled monolayer (FSAM)-modified indium-tin-oxide (ITO), is presented by the space charge limited current (SCLC) mechanism. When the carrier balance factor is assumed to be a unity with the current continuity law, the electron current of the -NPD/aluminum quinolone (Alq3) OLED can be evaluated experimentally. In addition, it is suggested that the electron current depends on the hole current from the comparison with the electron current of Alq3 single layer.

show abstract

Control of Open Voltage of Organic Photovoltaic Cells Using Fluorinated Self-Assembled Monolayer

Cited by 7 publications

References 11 publications

Homojunction Doping for Efficient Hole Extraction in Polymer Solar Cells

Homojunction Doping for Efficient Hole Extraction in Polymer Solar Cells

Development of Environmentally Controlled Desktop Spray Coater and Optimization of Deposition Conditions for Organic Thin-film Photovoltaic Cells

Estimation of Electron Current in Organic Light-Emitting Diodes Using an Operating Point Model

Contact Info

Product

Resources

About