CdS sensitized vertically aligned single crystal TiO2 nanorods on transparent conducting glass with improved solar cell efficiency and stability using ZnS passivation layer

Hsu, Shao Hui; Hung, Sung‐Fu; Chien, Sheng Hsuan

doi:10.1016/j.jpowsour.2013.01.089

Cited by 44 publications

(9 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Preparation of TiO 2 Nanorods on Fluorine‐Doped Tin Oxide Glass : Oriented rutile TiO 2 nanorods (TiNR) were grown on fluorine‐doped tin oxide (FTO) glass using a hydrothermal method . Briefly, 50 mL of hydrochloric acid (6 m ) was mixed with 0.83 mL of tetra‐n‐butyl orthotitanate and stirred for 5 min.…”

Section: Methodsmentioning

confidence: 99%

Iridium Oxide‐Assisted Plasmon‐Induced Hot Carriers: Improvement on Kinetics and Thermodynamics of Hot Carriers

Hung

Xiao

Hsu

et al. 2016

Advanced Energy Materials

Self Cite

129

View full text Add to dashboard Cite

Therefore, metallic nanostructures can substantially trap incident light and then generate hot carriers as well as build electromagnetic fi elds to assist the separation of hot carriers. [9][10][11] Over the past decade, LSPR-based photocatalysis has been studied using both theoretical and experimental approaches. In terms of theoretical approach, the fi nite-difference time domain simulation has been performed to understand the spatial distribution of electric fi eld around metal nanoparticles, which allows to predict possible mechanism of catalytic enhancement in LSPRbased photocatalysis. [ 11,12 ] Experimentally, Li et al. systematically incorporated a hematite nanorod array into a plasmonic gold nanohole pattern, which showed significant improvement in photoelectrochemical (PEC) performance. [ 13 ] This plasmonic metal nanostructure was benefi cial for launching a guided wave mode inside the nanorods to enhance the light absorption and providing a local plasmon-induced fi eld to suppress the recombination of photogenerated electron-hole pairs. Under light illumination, hot electron-hole pairs were simultaneously generated in plasmonic nanostructures through electromagnetic damping of surface plasmon resonance. Accordingly, plasmonic energy conversion could be a promising candidate of alternative solar-energy conversion pathway once an effectively separating and effi ciently collecting strategy of the plasmon-excited electron-hole pairs could be successfully achieved. However, unlike the conventional excitation mechanism of semiconductors, in which the electrons at the valence band of the semiconductor absorb incident irradiation and are subsequently excited into its conduction band (CB), there exists a totally different behavior for plasmon-induced hot carriers, where the plasmonic metallic nanostructures capture an irradiation with characteristic wavelengths of LSPR to generate highly energetic electron-hole pairs upon the surface of nanostructures. As a result, a new strategy has to be developed to achieve effi cient photocatalysis in plasmonic solar-energy conversion.From the viewpoint of photochemical reactions, it is essential to consider the lifetime of photoinduced charge-carriers. Nevertheless, the lifetime of plasmonic hot carriers is signifi cantly shorter than the requirement for the occurrence of chemical reactions, Plasmonic nanostructures are capable of driving photocatalysis through absorbing photons in the visible region of the solar spectrum. Unfortunately, the short lifetime of plasmon-induced hot carriers and sluggish surface chemical reactions signifi cantly limit their photocatalytic effi ciencies. Moreover, the thermodynamically favored excitation mechanism of plasmonic photocatalytic reactions is unclear. The mechanism of how the plasmonic catalyst could enhance the performance of chemical reaction and the limitation of localized surface plasmon resonance devices is proposed. In addition, a design is demonstrated through co-catalyst decorated plasmonic nanoparticles Au/IrO X upon a semi...

show abstract

Section: Methodsmentioning

confidence: 99%

Iridium Oxide‐Assisted Plasmon‐Induced Hot Carriers: Improvement on Kinetics and Thermodynamics of Hot Carriers

Hung

Xiao

Hsu

et al. 2016

Advanced Energy Materials

Self Cite

129

View full text Add to dashboard Cite

show abstract

“…QDSCs and showed dramatically positive effect in improving solar cell performance. 117,[459][460][461][462][463][464] The concept of ZnS coating treatment on semiconductor to tailor the interface characteristics was first carried out by Huang and coworkers, in which they coated TiO2/PbS/CdS electrode by a ZnS layer through SILAR method to protect the PbS and CdS particles from photocorrosion. 460 It was found that the photovoltaic performance of the solar cells was improved significantly after the ZnS treatment, especially in the Voc value.…”

Section: Interface Engineeringmentioning

confidence: 99%

Quantum dot-sensitized solar cells

et al. 2018

View full text Add to dashboard Cite

Quantum dot-sensitized solar cells (QDSCs) have emerged as a promising candidate for next-generation solar cells due to the distinct optoelectronic features of quantum dot (QD) light-harvesting materials, such as high light, thermal, and moisture stability, facilely tunable absorption range, high absorption coefficient, multiple exciton generation possibility, and solution processability as well as their facile fabrication and low-cost availability. In recent years, we have witnessed a dramatic boost in the power conversion efficiency (PCE) of QDSCs from 5% to nearly 13%, which is comparable to other kinds of emerging solar cells. Both the exploration of new QD light-harvesting materials and interface engineering have contributed to this fantastically fast improvement. The outstanding development trend of QDSCs indicates their great potential as a promising candidate for next-generation photovoltaic cells. In this review article, we present a comprehensive overview of the development of QDSCs, including: (1) the fundamental principles, (2) a history of the brief evolution of QDSCs, (3) the key materials in QDSCs, (4) recombination control, and (5) stability issues. Finally, some directions that can further promote the development of QDSCs in the future are proposed to help readers grasp the challenges and opportunities for obtaining high-efficiency QDSCs.

show abstract

“…Solar energy is considered one of the most potential energy sources to replace petroleum 1 . So far, scientists have been working on the development of various kinds of cells that can convert solar energy into electricity, and the cells that have been developed include silicon solar cells 2 , organic solar cells 3 4 , quantum dot solar cells 5 6 7 , dye-sensitized solar cells (DSSCs) 1 8 9 , and so on. Among these photovoltaic cells, DSSCs have attracted much attention because of their low manufacturing cost, simple fabrication process, and durability for conventional roll-printing technologies that are not applicable to glass-based systems 1 .…”

mentioning

confidence: 99%

Platinum-Free Counter Electrode Comprised of Metal-Organic-Framework (MOF)-Derived Cobalt Sulfide Nanoparticles for Efficient Dye-Sensitized Solar Cells (DSSCs)

Hsu

Chien

et al. 2014

Sci Rep

Self Cite

190

View full text Add to dashboard Cite

We fabricated a highly efficient (with a solar-to-electricity conversion efficiency (η) of 8.1%) Pt-free dye-sensitized solar cell (DSSC). The counter electrode was made of cobalt sulfide (CoS) nanoparticles synthesized via surfactant-assisted preparation of a metal organic framework, ZIF-67, with controllable particle sizes (50 to 320 nm) and subsequent oxidation and sulfide conversion. In contrast to conventional Pt counter electrodes, the synthesized CoS nanoparticles exhibited higher external surface areas and roughness factors, as evidenced by X-ray diffraction (XRD), scanning electron microscopy (SEM) element mapping, and electrochemical analysis. Incident photon-to-current conversion efficiency (IPCE) results showed an increase in the open circuit voltage (VOC) and a decrease in the short-circuit photocurrent density (Jsc) for CoS-based DSSCs compared to Pt-based DSSCs, resulting in a similar power conversion efficiency. The CoS-based DSSC fabricated in the study show great potential for economically friendly production of Pt-free DSSCs.

show abstract

CdS sensitized vertically aligned single crystal TiO2 nanorods on transparent conducting glass with improved solar cell efficiency and stability using ZnS passivation layer

Cited by 44 publications

References 35 publications

Iridium Oxide‐Assisted Plasmon‐Induced Hot Carriers: Improvement on Kinetics and Thermodynamics of Hot Carriers

Iridium Oxide‐Assisted Plasmon‐Induced Hot Carriers: Improvement on Kinetics and Thermodynamics of Hot Carriers

Quantum dot-sensitized solar cells

Platinum-Free Counter Electrode Comprised of Metal-Organic-Framework (MOF)-Derived Cobalt Sulfide Nanoparticles for Efficient Dye-Sensitized Solar Cells (DSSCs)

Contact Info

Product

Resources

About