نتایج جستجو برای: dye sensitized solar cells dsscs

تعداد نتایج: 1514235  

Journal: :International journal of advanced research 2021

The counter electrode plays major role in achieving of maximum performance dye-sensitized solar cells (DSSCs). A mixture jack-fruit latex and activated charcoal is used for the first time DSSCs as material. Maximum short-circuit photo-performances 3.2 mAcm-2was achieved TiO2|mercurochrome|(I-/I3-) at optimal amount binder percentage 15% jackfruit latex, under AM 1.5 conditions.

Journal: :Chemical communications 2014
Parthiban Ramasamy Jinkwon Kim

A novel rear reflector structure that combines NIR light harvesting β-NaGdF4:Yb, Er, Fe upconversion nanoparticles (UCNPs) and light reflecting silver particles has been successfully used to improve the performance of dye-sensitized solar cells (DSSCs). The power conversion efficiency of DSSCs with a rear reflector was 7.04%, which is an increase of 21.3% compared to the cell without a rear ref...

Journal: :Solar 2023

The use of traditional Dye-sensitized solar cells (DSSCs) is limited due to the toxic and non-environmentally safe solvents. In this review, water proposed as a viable alternative developing green chemistry sustainable materials for DSSCs. However, water-based DSSCs (WBDSSCs) require improvement in their photovoltaic parameters. detachment dye molecules from semiconductor poor solubility iodine...

Journal: :Chemical communications 2014
Hyo-Jin Ahn Ik-Hee Kim Jong-Chul Yoon Sun-I Kim Ji-Hyun Jang

We report CVD-grown p-doped three-dimensional graphene nano-networks (3D-GNs) that provide superior performance to Pt as a counter electrode material in dye sensitized solar cells (DSSCs). The 3D-GN based DSSC exhibits a maximum photoconversion efficiency of 8.46%, which is 6.01% greater than that exhibited by Pt based DSSCs.

Journal: :journal of sciences, islamic republic of iran 2014
a.d. khalaji

two organic compounds (sc-23=(e)-2-cyano-3-(2,3-dimethoxyphenyl) acrylic acid and sc-25=(e)-2-cyano-3-(2,5-dimethoxyphenyl) acrylic acid) involving methoxy groups as the electron donor and cyanoacrylic acid group as the electron acceptor have been investigated for dye sensitized solar cells. they shows a short-circuit current density (jsc) of 2.08 and 1.81 ma cm-2, an open circuit voltage (voc)...

Journal: :Chemical communications 2015
Yedi Xing Xiaojia Zheng Yihui Wu Mingrun Li Wen-Hua Zhang Can Li

Nitrogen-doped carbon nanotubes decorated with Co and Ni metal nanoparticles were assessed as counter electrodes (CEs) of dye-sensitized solar cells (DSSCs). These composites show good electrocatalytic activity toward the counter electrode reduction reaction (I3(-)→ I(-)) in DSSCs. The resulting devices using these composites as CEs display photovoltaic performance as good as, or even better th...

2014
Prabakaran Kumaresan Yamuna Ezhumalai Shueh Lin Yau Ming-Chou Chen Robert P. H. Chang

Organic photovoltaics (OPVs) and dye-sensitized solar cells (DSSCs) have drawn great interest from both academics and industry, due to the possibility of low-cost conversion of photovoltaic energy at reasonable efficiencies. This review focuses on recent progress in molecular engineering and technological aspects of fused-thiophene-based organic dye molecules for applications in solar cells. Pa...

Journal: :Nanoscale 2014
Gill Sang Han Sangwook Lee Jun Hong Noh Hyun Suk Chung Jong Hoon Park Bhabani Sankar Swain Jeong-Hyeok Im Nam-Gyu Park Hyun Suk Jung

TiO2 nanoparticle (NP)/ITO nanowire (NW) nanocomposites for use as photoelectrode materials were fabricated to improve the charge collection efficiency in solid state dye sensitized solar cells (ss-DSSCs). The average current density for ss-DSSCs containing TiO2 NP/ITO NW arrays was 7.2 mA cm(-2) that was 98% higher than that for the conventional TiO2 NP ss-DSSCs. The intensity modulated photoc...

2012
Chuan-Pei Lee Po-Yen Chen Kuo-Chuan Ho

1.1 New type of solar cell: dye-sensitized solar cells (DSSCs) The rising price of fossil fuels, together with their rapid depletion and the pollution caused by their combustion, is forcing us to find sources of clean renewable energy. Fortunately, the supply of energy from the sun to the earth is gigantic, i.e., 3 × 1024 joule a year or about ten thousand times more than what mankind consumes ...

2014
Xiaolin Liu Min Guo Jianjun Cao Jia Lin Yuen Hong Tsang Xianfeng Chen Haitao Huang

Large-sized titanium dioxide (TiO2) nanotube arrays with an outer diameter of approximately 500 nm have been successfully synthesized by potentiostatic anodization at 180 V in a used electrolyte with the addition of 1.5 M lactic acid. It is found that the synthesized large-diameter TiO2 nanotube array shows a superior light scattering ability, which can be used as a light scattering layer to si...

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