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Mingkui Wang

Cette personne n’est plus à l’EPFL

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Publications associées (427)

High-Performance Liquid and Solid Dye-Sensitized Solar Cells Based on a Novel Metal-Free Organic Sensitizer

Michael Graetzel, Shaik Mohammed Zakeeruddin, Robin Humphry-Baker, Mingkui Wang, Peng Wang

A new metal-free organic sensitizer (see figure) for high-performance and applicable dye-sensitized solar cells is presented. In combination with a solvent-free ionic liquid electrolyte, a similar to 7% cell made with this sensitizer shows all excellent st ...

Wiley2008

Enhance the optical absorptivity of nanocrystalline TiO2 film with high molar extinction coefficient ruthenium sensitizers for high performance dye-sensitized solar cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Robin Humphry-Baker, Mingkui Wang, Peng Wang

We report two new heteroleptic polypyridyl ruthenium complexes, coded C101 and C102, with high molar extinction coefficients by extending the pi-conjugation of spectator ligands, with a motivation to enhance the optical absorptivity of mesoporous titania f ...

2008

A new heteroleptic ruthenium sensitizer enhances the absorptivity of mesoporous titania film for a high efficiency dye-sensitized solar cell

Michael Graetzel, Shaik Mohammed Zakeeruddin, Robin Humphry-Baker, Mingkui Wang, Dan Shi, Yi Wang

A heteroleptic polypyridyl ruthenium complex, cis-Ru(4,4-bis(5-octylthieno[3,2-b]thiophen-2-yl)-2,2-bipyridine)(4,4-dicarboxyl-2,2-bipyridine)(NCS)2, with a high molar extinction coefficient of 20.5 × 103 M-1 cm-1 at 553 nm has been synthesized and demonst ...

Royal Society of Chemistry2008

High-performance dye-sensitized solar cells based on solvent-free electrolytes produced from eutectic melts

Michael Graetzel, Shaik Mohammed Zakeeruddin, Yu Bai, Mingkui Wang, Yiming Cao

2008

Evidence for D0-D̄0 mixing

Jean Wicht, Aurelio Bay, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Stewart Cole, Chao Wang, Yuan Yuan, Vladislav Balagura, Lei Zhang, Jing Li

We observe evidence for D0-D̄0 mixing by measuring the difference in the apparent lifetime when a D0 meson decays to the CP eigenstates K+K- and π+π- and when it decays to the final state K-π+. We find the relative difference of the lifetimes yCP to be [1. ...

2007

Study of B̄0→D0π+π- decays

Aurelio Bay, Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Vladislav Balagura, Lei Zhang

We report the results of a study of neutral B meson decays to the D0π+π- final state, where the D0 is fully reconstructed. The results are obtained from an event sample containing 388×106 BB̄-meson pairs collected in the Belle experiment at the KEKB e+e- c ...

American Physical Society2007

Search for b→h(*)νν̄ decays at belle

Aurelio Bay, Olivier Schneider, Tagir Aushev, Mingkui Wang, Stewart Cole, Chao Wang, Vladislav Balagura

We present a search for the rare decays B→h()νν̄, where h() stands for a light meson. A data sample of 535×106 BB̄ pairs collected with the Belle detector at the KEKB e+e- collider is used. Signal candidates are required to have an accompanying B meson f ...

2007

Measurements of branching fractions and q2 distributions for B → π ℓ ν and B → ρ ℓ ν decays with B → D(*) ℓ ν decay tagging

Aurelio Bay, Olivier Schneider, Tagir Aushev, Mingkui Wang, Stewart Cole, Chao Wang, Vladislav Balagura, Lei Zhang, Jing Li

We report measurements of the charmless semileptonic decays B0 → π- / ρ- ℓ+ ν and B+ → π0 / ρ0 ℓ+ ν, based on a sample of 2.75 × 108B over(B, ̄) events collected at the Υ{hooked} (4 S) resonance with the Belle detector at the KEKB e+ e- asymmetric collider ...

2007

Moments of the hadronic invariant mass spectrum in B→Xclν decays at Belle

Aurelio Bay, Olivier Schneider, Mingkui Wang, Stewart Cole, Chao Wang, Lei Zhang

We present a measurement of the hadronic invariant mass squared (MX2) spectrum in charmed semileptonic B meson decays B→Xc ν based on 140fb-1 of Belle data collected near the Υ(4S) resonance. We determine the first, the second central, and the second nonce ...

American Physical Society2007

Search for B+→J/ψη′K+ and B0→J/ψη′KS0 decays

Aurelio Bay, Olivier Schneider, Tagir Aushev, Mingkui Wang, Stewart Cole, Chao Wang, Vladislav Balagura, Lei Zhang

We report the results of searches for B+→J/ψη′K+ and B0→J/ψη′KS0 decays, using a sample of 388×106 BB̄ pairs collected with the Belle detector at the Υ(4S) resonance. No statistically significant signal is found for either of the two decay modes and upper ...

American Physical Society2007

Study of the charmed baryonic decays B̄0→Σc++p̄π- and B̄0→Σc0p̄π+

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Stewart Cole, Chao Wang, Lei Zhang, Jing Li

We study the three-body charmed baryonic decays B̄0→Σ c++p̄π- and B̄0→Σc0p̄π+ in the four-body final state B̄0→Λc+p̄π+π-, using a data sample of 357fb-1 accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. ...

American Physical Society2007

Improved measurement of CP-violating parameters in B→ρ+ρ- decays

Olivier Schneider, Tagir Aushev, Mingkui Wang, Stewart Cole, Chao Wang

We present a measurement of the CP-violating asymmetry in B0→ρ+ρ- decays using 535×106 BB̄ pairs collected with the Belle detector at the KEKB e+e- collider. We measure CP-violating coefficients A=0.16±0.21(stat)±0.08(syst) and S=0.19±0. 30(stat)±0.08(syst ...

American Physical Society2007

Observation of direct CP violation in B0→π+π- decays and model-independent constraints on the quark-mixing angle 2

Olivier Schneider, Tagir Aushev, Mingkui Wang, Stewart Cole, Chao Wang, Lei Zhang

We report a new measurement of the time-dependent CP-violating parameters in B0→π+π- decays with 535×106 BB̄ pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider operating at the Υ(4S) resonance. We find 1464±65 B0→π+π- event ...

2007

A study of γ γ → KS 0 KS 0 production at energies from 2.4 to 4.0 GeV at Belle

Aurelio Bay, Olivier Schneider, Mingkui Wang, Chao Wang

KS 0 KS 0 production in two-photon collisions has been studied using a 397.6 fb-1 data sample collected with the Belle detector at the KEKB e+ e- collider. For the first time the cross sections are measured in the two-photon center-of-mass energy range bet ...

2007

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Mingkui Wang

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High-Performance Liquid and Solid Dye-Sensitized Solar Cells Based on a Novel Metal-Free Organic Sensitizer

Enhance the optical absorptivity of nanocrystalline TiO2 film with high molar extinction coefficient ruthenium sensitizers for high performance dye-sensitized solar cells

A new heteroleptic ruthenium sensitizer enhances the absorptivity of mesoporous titania film for a high efficiency dye-sensitized solar cell

High-performance dye-sensitized solar cells based on solvent-free electrolytes produced from eutectic melts

Evidence for D0-D̄0 mixing

Study of B̄0→D0π+π- decays

Search for b→h(*)νν̄ decays at belle

Measurements of branching fractions and q2 distributions for B → π ℓ ν and B → ρ ℓ ν decays with B → D(*) ℓ ν decay tagging

Moments of the hadronic invariant mass spectrum in B→Xclν decays at Belle

Search for B+→J/ψη′K+ and B0→J/ψη′KS0 decays

Study of the charmed baryonic decays B̄0→Σc++p̄π- and B̄0→Σc0p̄π+

Improved measurement of CP-violating parameters in B→ρ+ρ- decays

Observation of direct CP violation in B0→π+π- decays and model-independent constraints on the quark-mixing angle 2

A study of γ γ → KS 0 KS 0 production at energies from 2.4 to 4.0 GeV at Belle

Study of B+→pΛ¯γ, pΛ¯π0 and B0→pΛ¯π-

Observation of a Charmoniumlike State Produced in Association with a J/ψ in e+e- Annihilation at s≈10.6 GeV

Measurement of charmless B decays to ηK* and ηρ

Measurements of Branching Fractions for B→Kπ and B→ππ Decays

Measurement of Einstein-Podolsky-Rosen-Type Flavor Entanglement in Υ(4S)→B0B¯0 Decays

Observation of the Decay B0→J/ψη