scholarly journals Photovoltaic properties enhanced by the tunneling effect in a coupled quantum dot photocell

2021 ◽  
pp. 104094
Author(s):  
Sheng-Qiang Zhong ◽  
Shun-Cai Zhao ◽  
Sheng-Nan Zhu
Keyword(s):  
Quantum Dot ◽  
Tunneling Effect ◽  
Photovoltaic Properties

Constructing PbS quantum dot sensitized ZnO nanorod array photoelectrodes for highly efficient photovoltaic devices

2016 ◽  
Vol 94 (7) ◽  
pp. 687-692
Author(s):  
Masood Mehrabian ◽  
Naser Ghasemian
Keyword(s):  
Quantum Dot ◽  
Short Circuit ◽  
Zno Nanorods ◽  
Growth Period ◽  
Short Circuit Current ◽  
Nanorod Array ◽  
Open Circuit ◽  
Zno Film ◽  
Photovoltaic Properties ◽  
Pbs Quantum Dot

Solar cells with ZnO film/ZnO nanorods (NRs)/PbS quantum dot (QD) photoelectrodes were constructed and various properties were studied. The ZnO NRs were grown for different periods varying from 0 (ZnO film) to 30 min (ZnO NR30) and the effect of growth period on the photovoltaic properties was investigated. The cell with ZnO film/PbS QD as photoelectrode showed the open circuit voltage VOC of 0.59 V, short circuit current density JSC of 10.06 mAcm−2, and the power conversion efficiency of 3.29% under one sun illumination (air mass 1.5 global illumination at 100 mWcm−2). In a device containing of ZnO film/ZnO NR10/PbS QD (as photoelectrode), mentioned photovoltaic parameters increased to 0.61 V, 10.47 mAcm−2 and 3.81%, respectively.

scholarly journals Impacts of Post-metallisation Processes on the Electrical and Photovoltaic Properties of Si Quantum Dot Solar Cells

2010 ◽  
Vol 5 (11) ◽  
pp. 1762-1767 ◽  
Author(s):  
Dawei Di ◽  
Ivan Perez-Wurfl ◽  
Angus Gentle ◽  
Dong-Ho Kim ◽  
Xiaojing Hao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Photovoltaic Properties ◽  
Si Quantum Dot ◽  
Quantum Dot Solar Cells

scholarly journals One-step, solvothermal synthesis of graphene-CdS and graphene-ZnS quantum dot nanocomposites and their interesting photovoltaic properties

Nano Research ◽  
2010 ◽  
Vol 3 (11) ◽  
pp. 794-799 ◽  
Author(s):  
Ping Wang ◽  
Tengfei Jiang ◽  
Chengzhou Zhu ◽  
Yueming Zhai ◽  
Dejun Wang ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Solvothermal Synthesis ◽  
Photovoltaic Properties ◽  
One Step

Optical and Photovoltaic Properties of CdS/Ag2S Quantum Dots Co-Sensitized-Solar Cells

2013 ◽  
Vol 761 ◽  
pp. 15-18 ◽  
Author(s):  
Auttasit Tubtimtae ◽  
Ming Way Lee
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Near Infrared ◽  
Energy Gap ◽  
Photocurrent Density ◽  
Infrared Region ◽  
Open Circuit ◽  
Photovoltaic Properties ◽  
Different Characteristics ◽  
Sensitized Solar Cells

Subscript textWe present a co-sensitization of CdS/Ag2S quantum-dot as sensitizers for solar cells. The optical properties of single and double-layered quantum-dot conditions were monitored using UV-Vis spectrophotometer. The results show that the different characteristics of absorption spectra depended on the types of QDs, indicating to the different energy gap of each QDs deposited on TiO2 surface and the tunable absorption ranges of the sample of double-layered quantum-dot-sensitized TiO2 electrodes are broader and the absorption intensity are higher than the single-layered quantum-dot, attributed to the co-absorption of two QDs to the light and both CdS and Ag2S are activated in visible to near-infrared region (450-1100 nm). The photovoltaic data shows that the highest efficiency of 1.41% with a photocurrent density, Jsc of 20.6 mA/cm2, an open-circuit voltage, Voc of 0.32 V and a fill factor, FF of 21.3% were yielded by the sample of CdS(3)/Ag2S(4) as an optimum condition of dipping cycles for CdS and Ag2S under irradiance of 100 mW/cm2 (AM 1.5G).

Effect of ZnS coating on the photovoltaic properties of CdSe quantum dot-sensitized solar cells

2008 ◽  
Vol 103 (8) ◽  
pp. 084304 ◽  
Author(s):  
Qing Shen ◽  
Junya Kobayashi ◽  
Lina J. Diguna ◽  
Taro Toyoda
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Photovoltaic Properties ◽  
Cdse Quantum Dot ◽  
Sensitized Solar Cells

Photovoltaic properties of multilayered quantum dot/quantum rod-sensitized TiO2 solar cells fabricated by SILAR and electrophoresis

2015 ◽  
Vol 17 (28) ◽  
pp. 18590-18599 ◽  
Author(s):  
Andrea Cerdán-Pasarán ◽  
Tzarara López-Luke ◽  
Diego Esparza ◽  
Isaac Zarazúa ◽  
Elder De la Rosa ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Cds Quantum Dots ◽  
Photovoltaic Properties ◽  
Quantum Rods ◽  
Quantum Rod

A multilayered semiconductor sensitizer structure composed of three differently sized CdSe quantum rods and CdS quantum dots.

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