Extracting large photovoltages from a-SiC photocathodes with an amorphous TiO2 front surface field layer for solar hydrogen evolution

2015 ◽  
Vol 8 (5) ◽  
pp. 1585-1593 ◽  
Author(s):  
Ibadillah A. Digdaya ◽  
Lihao Han ◽  
Thom W. F. Buijs ◽  
Miro Zeman ◽  
Bernard Dam ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Front Surface ◽  
Photocurrent Density ◽  
Solar Hydrogen ◽  
Onset Potential ◽  
Field Layer ◽  
Surface Field ◽  
Earth Abundant ◽  
Amorphous Tio2 ◽  
Amorphous Sic

A p–i–n junction photocathode made from 110 nm (p/i) amorphous SiC and an (n) TiO2 top layer leads to an onset potential of +0.8 VRHE and a photocurrent density of 8.3 mA cm−2 at 0 VRHE using only earth abundant materials.

Efficient Charge Transfer at a Homogeneously Distributed (NH4)2Mo3S13 / WSe2 Heterojunction for Solar Hydrogen Evolution

2019 ◽  
Author(s):  
Farabi Bozheyev ◽  
Fanxing Xi ◽  
Paul Plate ◽  
Thomas Dittrich ◽  
Sebastian Fiechter ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Large Scale ◽  
Transition Metal Dichalcogenides ◽  
Photocurrent Density ◽  
New Combination ◽  
Solar Hydrogen ◽  
Earth Abundant ◽  
Efficient Charge ◽  
New Finding ◽  
Metal Dichalcogenides

<p></p><p>In the present work we demonstrate a record photocurrent density of 5.6 mA cm<sup>-2</sup> at 0 V<sub>RHE</sub> for WSe<sub>2</sub> photocathodes coated with an effective/earth abundant catalyst - ammonium thiomolybdate (NH<sub>4</sub>)<sub>2</sub>Mo<sub>3</sub>S<sub>13</sub> (ATM). The photocurrent density can be tuned by optimizing the WSe<sub>2</sub> film thickness. The features of this new combination (NH<sub>4</sub>)<sub>2</sub>Mo<sub>3</sub>S<sub>13</sub> / WSe<sub>2</sub> and its performance for solar hydrogen evolution is discussed in the manuscript. Our new finding is that the ATM can be used as a photocatalyst, not only as an electrocatalyst known up to date. The results further expand and develop the field of the transition metal dichalcogenides especially in the context of the solar hydrogen evolution. This work is an important milestone towards large scale photocathodes using earth abundant elements.</p><p></p>

Efficient Charge Transfer at a Homogeneously Distributed (NH4)2Mo3S13 / WSe2 Heterojunction for Solar Hydrogen Evolution

2019 ◽  
Author(s):  
Farabi Bozheyev ◽  
Fanxing Xi ◽  
Paul Plate ◽  
Thomas Dittrich ◽  
Sebastian Fiechter ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Large Scale ◽  
Transition Metal Dichalcogenides ◽  
Photocurrent Density ◽  
New Combination ◽  
Solar Hydrogen ◽  
Earth Abundant ◽  
Efficient Charge ◽  
New Finding ◽  
Metal Dichalcogenides

<p></p><p>In the present work we demonstrate a record photocurrent density of 5.6 mA cm<sup>-2</sup> at 0 V<sub>RHE</sub> for WSe<sub>2</sub> photocathodes coated with an effective/earth abundant catalyst - ammonium thiomolybdate (NH<sub>4</sub>)<sub>2</sub>Mo<sub>3</sub>S<sub>13</sub> (ATM). The photocurrent density can be tuned by optimizing the WSe<sub>2</sub> film thickness. The features of this new combination (NH<sub>4</sub>)<sub>2</sub>Mo<sub>3</sub>S<sub>13</sub> / WSe<sub>2</sub> and its performance for solar hydrogen evolution is discussed in the manuscript. Our new finding is that the ATM can be used as a photocatalyst, not only as an electrocatalyst known up to date. The results further expand and develop the field of the transition metal dichalcogenides especially in the context of the solar hydrogen evolution. This work is an important milestone towards large scale photocathodes using earth abundant elements.</p><p></p>

Efficient Charge Transfer at a Homogeneously Distributed (NH4)2Mo3S13 / WSe2 Heterojunction for Solar Hydrogen Evolution

2018 ◽  
Author(s):  
Farabi Bozheyev ◽  
Fanxing Xi ◽  
Thomas Dittrich ◽  
Sebastian Fiechter ◽  
Klaus Ellmer
Keyword(s):  
Hydrogen Evolution ◽  
Large Scale ◽  
Transition Metal Dichalcogenides ◽  
Photocurrent Density ◽  
New Combination ◽  
Solar Hydrogen ◽  
Earth Abundant ◽  
Efficient Charge ◽  
New Finding ◽  
Metal Dichalcogenides

<p></p><p>In the present work we demonstrate a record photocurrent density of 5.6 mA cm<sup>-2</sup> at 0 V<sub>RHE</sub> for WSe<sub>2</sub> photocathodes coated with an effective/earth abundant catalyst - ammonium thiomolybdate (NH<sub>4</sub>)<sub>2</sub>Mo<sub>3</sub>S<sub>13</sub> (ATM). The photocurrent density can be tuned by optimizing the WSe<sub>2</sub> film thickness. The features of this new combination (NH<sub>4</sub>)<sub>2</sub>Mo<sub>3</sub>S<sub>13</sub> / WSe<sub>2</sub> and its performance for solar hydrogen evolution is discussed in the manuscript. Our new finding is that the ATM can be used as a photocatalyst, not only as an electrocatalyst known up to date. The results further expand and develop the field of the transition metal dichalcogenides especially in the context of the solar hydrogen evolution. This work is an important milestone towards large scale photocathodes using earth abundant elements.</p><p></p>

scholarly journals Wittichenite semiconductor of Cu3BiS3 films for efficient hydrogen evolution from solar driven photoelectrochemical water splitting

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Dingwang Huang ◽  
Lintao Li ◽  
Kang Wang ◽  
Yan Li ◽  
Kuang Feng ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Low Cost ◽  
Solar Hydrogen ◽  
Onset Potential ◽  
Term Stability ◽  
Long Term Stability ◽  
Solar Water Splitting ◽  
Current Densities

AbstractA highly efficient, low-cost and environmentally friendly photocathode with long-term stability is the goal of practical solar hydrogen evolution applications. Here, we found that the Cu3BiS3 film-based photocathode meets the abovementioned requirements. The Cu3BiS3-based photocathode presents a remarkable onset potential over 0.9 VRHE with excellent photoelectrochemical current densities (~7 mA/cm2 under 0 VRHE) and appreciable 10-hour long-term stability in neutral water solutions. This high onset potential of the Cu3BiS3-based photocathode directly results in a good unbiased operating photocurrent of ~1.6 mA/cm2 assisted by the BiVO4 photoanode. A tandem device of Cu3BiS3-BiVO4 with an unbiased solar-to-hydrogen conversion efficiency of 2.04% is presented. This tandem device also presents high stability over 20 hours. Ultimately, a 5 × 5 cm2 large Cu3BiS3-BiVO4 tandem device module is fabricated for standalone overall solar water splitting with a long-term stability of 60 hours.

scholarly journals Silicon nanowire arrays coupled with cobalt phosphide spheres as low-cost photocathodes for efficient solar hydrogen evolution

2015 ◽  
Vol 51 (53) ◽  
pp. 10742-10745 ◽  
Author(s):  
Xiao-Qing Bao ◽  
M. Fatima Cerqueira ◽  
Pedro Alpuim ◽  
Lifeng Liu
Keyword(s):  
Hydrogen Evolution ◽  
Low Cost ◽  
Silicon Nanowire ◽  
Hollow Spheres ◽  
Nanowire Arrays ◽  
Photoelectrochemical Performance ◽  
Solar Hydrogen ◽  
Cobalt Phosphide ◽  
Silicon Nanowire Arrays ◽  
Earth Abundant

Low-cost photocathodes consisting of silicon nanowire arrays coupled with hollow spheres of the emerging earth-abundant cobalt phosphide catalysts are fabricated, which exhibit good photoelectrochemical performance toward the solar-driven H2 evolution.

Efficient charge transfer at a homogeneously distributed (NH4)2Mo3S13/WSe2 heterojunction for solar hydrogen evolution

2019 ◽  
Vol 7 (17) ◽  
pp. 10769-10780 ◽  
Author(s):  
Farabi Bozheyev ◽  
Fanxing Xi ◽  
Paul Plate ◽  
Thomas Dittrich ◽  
Sebastian Fiechter ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Hydrogen Evolution ◽  
Solar Hydrogen ◽  
Earth Abundant ◽  
Efficient Charge

Efficient charge transfer is achieved by coating WSe2 photocathodes with an earth abundant photocatalyst – ammonium thiomolybdate (NH4)2Mo3S13.

scholarly journals Fabrication and photoelectrochemical study of selenide and oxide heterostructures for solar hydrogen evolution

2019 ◽  
Vol 136 ◽  
pp. 02032
Author(s):  
Xiaokang Wan ◽  
Yunbo Xu ◽  
Tingyong Fang
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Chemical Bath Deposition ◽  
Photocurrent Density ◽  
Deposition Condition ◽  
Light Illumination ◽  
Solar Hydrogen ◽  
Oxide Heterostructures ◽  
Simulated Solar Light ◽  
Planar Heterojunction

We report the synthesis and photoelectrochemical (PEC) studies of a novel CdSe/BiVO4 planar heterojunction photoelectrodes for photoelectrochemical water splitting fabricated by chemical bath deposition of CdSe on the spin-coated BiVO4 layers. Temperature and time of chemical bath deposition were investigated to obtain the optimal deposition condition. The optimized CdSe/BiVO4 with enhanced photo absorption yielded a maximum photocurrent density of 2.48 mA under the irradiation of AM 1.5 G (100 mW/cm2) simulated solar light illumination, which is enhanced by 3.87 times compared to bare BiVO4.

scholarly journals Improving the efficiency of rear emitter silicon solar cell using an optimized n-type silicon oxide front surface field layer

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Sangho Kim ◽  
Jinjoo Park ◽  
Pham Duy Phong ◽  
Chonghoon Shin ◽  
S. M. Iftiquar ◽  
...  
Keyword(s):  
Solar Cell ◽  
Silicon Solar Cell ◽  
Silicon Oxide ◽  
Front Surface ◽  
Field Layer ◽  
Type Silicon ◽  
Surface Field ◽  
Front Surface Field
Sign in / Sign up

Export Citation Format

Share Document