Optoelectronic and photovoltaic properties of graphene quantum dot–polyaniline nanostructures

2015 ◽  
Vol 3 (41) ◽  
pp. 20736-20748 ◽  
Author(s):  
Nabasmita Maity ◽  
Atanu Kuila ◽  
Sandip Das ◽  
Debasish Mandal ◽  
Arnab Shit ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Power Conversion ◽  
Graphene Quantum Dots ◽  
Dye Sensitized Solar Cells ◽  
Photovoltaic Properties ◽  
Aqueous Dispersions ◽  
Graphene Quantum Dot ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

In aqueous dispersions of graphene quantum dots (GQDs), aniline is in situ polymerized to produce polyaniline-GQDs hybrids and dye-sensitized solar cells fabricated with the hybrids indicate highest power conversion efficiency of 3.12%.

Boosting the photoelectric conversion efficiency of DSSCs through graphene quantum dots: Insights from theoretical study

2021 ◽  
Author(s):  
Yuanchao Li ◽  
Wenyuan Zhang ◽  
Xin Li ◽  
Yanling Xu
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Theoretical Study ◽  
Graphene Quantum Dots ◽  
Dye Sensitized Solar Cells ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Graphene Quantum Dot ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

The introduction of graphene quantum dot (GQD) into the photoactive layer of dye sensitized solar cells (DSSCs) has achieved encouraging results in the experiment. However, which one is the best...

A Facile Synthesis of Graphene Quantum Dots via Size-Selective Precipitation and Their Application in GQD-layer Modified DSSC

2015 ◽  
Vol 1727 ◽  
Author(s):  
Jaehoon Ryu ◽  
Jyongsik Jang
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Carbon Nanofibers ◽  
Graphene Quantum Dots ◽  
Dye Sensitized Solar Cells ◽  
Facile Synthesis ◽  
Selective Precipitation ◽  
Dye Sensitized ◽  
Novel Approach ◽  
Sensitized Solar Cells

ABSTRACTA novel approach to synthesize highly luminescent graphene quantum dots (GQDs) with well-defined sizes was explored based on simple oxidation of herringbone-type carbon nanofibers (HCNFs) and size-selective precipitation. In addition, the upconversion properties of GQD were investigated by applying GQD in working electrode of dye-sensitized solar cells (DSSCs).

scholarly journals Effect of π-Conjugated Spacer in N-Alkylphenoxazine-Based Sensitizers Containing Double Anchors for Dye-Sensitized Solar Cells

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1304
Author(s):  
Yung-Sheng Yen ◽  
Velu Indumathi
Keyword(s):  
Solar Cells ◽  
Electrochemical Impedance ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Co Adsorption ◽  
Dye Sensitized Solar Cells ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
The Impact ◽  
Sensitized Solar Cells

A series of novel double-anchoring dyes for phenoxazine-based organic dyes with two 2-cyanoacetic acid acceptors/anchors, and the inclusion of a 2-ethylhexyl chain at the nitrogen atom of the phenoxazine that is connected with furan, thiophene, and 3-hexylthiophene as a linker, are used as sensitizers for dye-sensitized solar cells. The double-anchoring dye exhibits strong electronic coupling with TiO2, provided that there is an efficient charge injection rate. The result showed that the power conversion efficiency of DP-2 with thiophene linker-based cell reached 3.80% higher than that of DP-1 with furan linker (η = 1.53%) under standard illumination. The photovoltaic properties are further tuned by co-adsorption strategy, which improved power conversion efficiencies slightly. Further molecular theoretical computation and electrochemical impedance spectroscopy analysis of the dyes provide further insight into the molecular geometry and the impact of the different π-conjugated spacers on the photophysical and photovoltaic performance.

scholarly journals On the assessment of incorporation of CNT–TiO2 core–shell structures into nanoparticle TiO2 photoanodes in dye-sensitized solar cells

2019 ◽  
Vol 18 (7) ◽  
pp. 1840-1850 ◽  
Author(s):  
H. M. Ghartavol ◽  
M. R. Mohammadi ◽  
A. Afshar ◽  
Y. Li
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Shell Structures ◽  
Core Shell ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Core–shell nanotubes were synthesized by in situ deposition of TiO2 on non-covalently functionalized CNTs. TiO2 photoanodes decorated with TiO2@CNT showed an increase of 37% in the device's power conversion efficiency.

Sign in / Sign up

Export Citation Format

Share Document