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Nripan Mathews

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Publications associées (29)

Lead-Free MA(2)CuCl(x)Br(4-x), Hybrid Perovskites

Michael Graetzel, Nripan Mathews, Shi Chen

Despite their extremely good performance in solar cells with efficiencies approaching 20% and the emerging application for light-emitting devices, organic-inorganic lead halide perovskites suffer from high content of toxic, polluting, and bioaccumulative P ...

American Chemical Society2016

Solution-Processed Tin-Based Perovskite for Near-Infrared Lasing

Michael Graetzel, Nripan Mathews

The family of solution-processed tin-based perovskites is demonstrated as a new and superior near-infrared gain medium. Due to the large electron-hole bimolecular recombination associated with tin and the reduced trap density with SnF2 treatment, these lea ...

Wiley-Blackwell2016

Perovskite-Hematite Tandem Cells for Efficient Overall Solar Driven Water Splitting

Michael Graetzel, Nripan Mathews

Photoelectrochemieal water splitting half reactions on semiconducting photoelectrodes have received much attention but efficient overall water splitting driven by a single photoelectrode has remained elusive due to stringent electronic and thermodynamic pr ...

American Chemical Society2015

Highly Spin-Polarized Carrier Dynamics and Ultra large Photoinduced Magnetization in CH(3)NH(3)Pbl(3) Perovskite Thin Films

Michael Graetzel, Nripan Mathews

Low-temperature solution-processed organic-inorganic halide perovskite CH3NH3PbI3 has demonstrated great potential for photovoltaics and light-emitting devices. Recent discoveries of long ambipolar carrier diffusion lengths and the prediction of the Rashba ...

American Chemical Society2015

Low-temperature solution-processed wavelength-tunable perovskites for lasing

Michael Graetzel, Nripan Mathews

Low-temperature solution-processed materials that show optical gain and can be embedded into a wide range of cavity resonators are attractive for the realization of on-chip coherent light sources. Organic semiconductors and colloidal quantum dots are consi ...

Nature Publishing Group2014

High efficiency electrospun TiO2 nanofiber based hybrid organic-inorganic perovskite solar cell

Michael Graetzel, Nripan Mathews, Thi Thu Trang Pham

The good electrical and morphological characteristics of TiO2 nanofibers and the high extinction coefficient of CH3NH3PbI3 perovskite are combined to obtain a solar cell with a power conversion efficiency of 9.8%. The increase of the film thickness dramati ...

Royal Society of Chemistry2014

Lead-Free Halide Perovskite Solar Cells with High Photocurrents Realized Through Vacancy Modulation

Michael Graetzel, Nripan Mathews

Lead free perovskite solar cells based on a CsSnI3 light absorber with a spectral response from 950 nm is demonstrated. The high photocurrents noted in the system are a consequence of SnF2 addition which reduces defect concentrations and hence the backgrou ...

Wiley-V C H Verlag Gmbh2014

A swivel-cruciform thiophene based hole-transporting material for efficient perovskite solar cells

Michael Graetzel, Nripan Mathews, Kunwu Fu, Satvasheel Powar

A novel swivel- cruciform 3,3'- bithiophene based hole- transporting material (HTM) with a low lying highest occupied molecular orbital (HOMO) level was synthesized. This new HTM (KTM3) in CH3NH3PbI3 perovskite solar cells showed a higher V-oc (1.08 V) and ...

Royal Society of Chemistry2014

On the Solar to Hydrogen Conversion Efficiency of Photoelectrodes for Water Splitting

Michael Graetzel, Takashi Hisatomi, Nripan Mathews

Amer Chemical Soc2014

In situ photo-assisted deposition of MoS2 electrocatalyst onto zinc cadmium sulphide nanoparticle surfaces to construct an efficient photocatalyst for hydrogen generation

Michael Graetzel, Nripan Mathews

We reported herein a facile and scalable preparation process for MoS2-decorated ZnxCd1-xS hybrid photocatalysts for hydrogen generation. ZnxCd1-xS nanopowder was first prepared from commercially available precursors employing a solution based process. MoS2 ...

Royal Society of Chemistry2013

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Solution-Processed Tin-Based Perovskite for Near-Infrared Lasing

Michael Graetzel, Nripan Mathews

Wiley-Blackwell2016

Perovskite-Hematite Tandem Cells for Efficient Overall Solar Driven Water Splitting

Michael Graetzel, Nripan Mathews

American Chemical Society2015

Highly Spin-Polarized Carrier Dynamics and Ultra large Photoinduced Magnetization in CH(3)NH(3)Pbl(3) Perovskite Thin Films

Michael Graetzel, Nripan Mathews

American Chemical Society2015

In situ photo-assisted deposition of MoS2 electrocatalyst onto zinc cadmium sulphide nanoparticle surfaces to construct an efficient photocatalyst for hydrogen generation

Michael Graetzel, Nripan Mathews

Royal Society of Chemistry2013

Lead-Free MA(2)CuCl(x)Br(4-x), Hybrid Perovskites

Michael Graetzel, Nripan Mathews, Shi Chen

American Chemical Society2016