Pascal Andre
Address: Chemistry & Materials Physics Building
Advanced Science Institute
RIKEN
2-1 Hirowasa, Wako, Saitama, 351-0198 (Japan)
p: +81 (0) 48 467 9146
w: https://www.riken.go.jp/
www.hybridnanocolloids.com
Advanced Science Institute
RIKEN
2-1 Hirowasa, Wako, Saitama, 351-0198 (Japan)
p: +81 (0) 48 467 9146
w: https://www.riken.go.jp/
www.hybridnanocolloids.com
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Papers by Pascal Andre
polymer blends led systematically to power conversion efficiencies (PCE) increases, with PTB7:PC70BM blend exhibiting PCE of ~ 8.3 %, i.e. ~ 15 % increase compared to pristine HTL devices. A reduced device-to-device characteristics variations was also noticed when fluorinated additives were used to modify the PEDOT:PSS. Shading lights onto the effect of HTL fluorination, we show that the morphology of the polymer:PCBM blends remains surprisingly unaffected by the fluorinated HTL surface energy but that, instead, the OPVs are impacted not only by the HTL electronic properties (work function, dipole layer, open circuit voltage, charge transfer dynamic) but also by alteration of the complex refractive indices (photogeneration, short circuit current density, external quantum efficiencies, electro-optic modelling). Both mechanisms find their origin in fluorination induced charge transfers. This work points towards fluorination as a promising strategy toward combining both external quantum efficiency modulation and power conversion efficiency enhancement in OPVs. Charge transfers could also be used more broadly to tune the optical constants and electric field distribution, as well as to reduce interfacial charge recombinations within OPVs.
A tensiometer was used to record the retraction force.With an injected volume of 2mL in a particle concentration of 1 g/mL, this technique produced maximalmagnetic retraction forces of 2.24 ± 0.23Nand 5.11 ± 0.34N(𝑛 = 20), with use of 5 and 10mmprobes, respectively. The results indicate that the formation of an intraluminal coagulum based on SS410-𝜇Ps and Loctite 4014 produces sufficient magnetic retraction for bowel retraction.
key-candidates for the development of platforms for data storage, catalysis and a wide range of biomedical applications. While fairly young in regards of other magnetic nPs, the synthesis of FePt nPs has certainly reached a maturity which makes it timely to briefly review the main colloidal chemistry pathways used to obtain them. With a biased interest towards direct face centred tetragonal (fct) crystalline phase formation, we then present a short review aiming at introducing the readers to the syntheses of FePt nPs. We then take advantage of this snapshot to comment on advantages and drawbacks of each approach together with highlighting the potential directions the field might evolve towards in the near future to form full chemically organised FePt nPs.
Organic Electronics 12, 11, 1800 (2011)
polymer blends led systematically to power conversion efficiencies (PCE) increases, with PTB7:PC70BM blend exhibiting PCE of ~ 8.3 %, i.e. ~ 15 % increase compared to pristine HTL devices. A reduced device-to-device characteristics variations was also noticed when fluorinated additives were used to modify the PEDOT:PSS. Shading lights onto the effect of HTL fluorination, we show that the morphology of the polymer:PCBM blends remains surprisingly unaffected by the fluorinated HTL surface energy but that, instead, the OPVs are impacted not only by the HTL electronic properties (work function, dipole layer, open circuit voltage, charge transfer dynamic) but also by alteration of the complex refractive indices (photogeneration, short circuit current density, external quantum efficiencies, electro-optic modelling). Both mechanisms find their origin in fluorination induced charge transfers. This work points towards fluorination as a promising strategy toward combining both external quantum efficiency modulation and power conversion efficiency enhancement in OPVs. Charge transfers could also be used more broadly to tune the optical constants and electric field distribution, as well as to reduce interfacial charge recombinations within OPVs.
A tensiometer was used to record the retraction force.With an injected volume of 2mL in a particle concentration of 1 g/mL, this technique produced maximalmagnetic retraction forces of 2.24 ± 0.23Nand 5.11 ± 0.34N(𝑛 = 20), with use of 5 and 10mmprobes, respectively. The results indicate that the formation of an intraluminal coagulum based on SS410-𝜇Ps and Loctite 4014 produces sufficient magnetic retraction for bowel retraction.
key-candidates for the development of platforms for data storage, catalysis and a wide range of biomedical applications. While fairly young in regards of other magnetic nPs, the synthesis of FePt nPs has certainly reached a maturity which makes it timely to briefly review the main colloidal chemistry pathways used to obtain them. With a biased interest towards direct face centred tetragonal (fct) crystalline phase formation, we then present a short review aiming at introducing the readers to the syntheses of FePt nPs. We then take advantage of this snapshot to comment on advantages and drawbacks of each approach together with highlighting the potential directions the field might evolve towards in the near future to form full chemically organised FePt nPs.
Organic Electronics 12, 11, 1800 (2011)