scholarly journals Improvement of Power Conversion Efficiency of Quantum Dot-Sensitized Solar Cells by Doping of Manganese into a ZnS Passivation Layer and Cosensitization of Zinc-Porphyrin on a Modified Graphene Oxide/Nitrogen-Doped TiO2 Photoanode

ACS Omega ◽  
2020 ◽  
Vol 5 (19) ◽  
pp. 11024-11034 ◽  
Author(s):  
Mahdi Alavi ◽  
Rahmatollah Rahimi ◽  
Zahra Maleki ◽  
Mahboubeh Hosseini-Kharat
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Quantum Dot ◽  
Power Conversion ◽  
Zinc Porphyrin ◽  
Nitrogen Doped ◽  
Modified Graphene Oxide ◽  
Modified Graphene ◽  
Sensitized Solar Cells ◽  
Tio2 Photoanode

scholarly journals Surface-Modified Graphene Oxide/Lead Sulfide Hybrid Film-Forming Ink for High-Efficiency Bulk Nano-Heterojunction Colloidal Quantum Dot Solar Cells

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Yaohong Zhang ◽  
Guohua Wu ◽  
Chao Ding ◽  
Feng Liu ◽  
Dong Liu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Quantum Dot ◽  
Active Layer ◽  
Lead Sulfide ◽  
Carrier Mobility ◽  
Quantum Dot Solar Cells ◽  
Modified Graphene Oxide ◽  
Colloidal Quantum Dot ◽  
Modified Graphene

AbstractSolution-processed colloidal quantum dot solar cells (CQDSCs) is a promising candidate for new generation solar cells. To obtain stable and high performance lead sulfide (PbS)-based CQDSCs, high carrier mobility and low non-radiative recombination center density in the PbS CQDs active layer are required. In order to effectively improve the carrier mobility in PbS CQDs layer of CQDSCs, butylamine (BTA)-modified graphene oxide (BTA@GO) is first utilized in PbS-PbX2 (X = I−, Br−) CQDs ink to deposit the active layer of CQDSCs through one-step spin-coating method. Such surface treatment of GO dramatically upholds the intrinsic superior hole transfer peculiarity of GO and attenuates the hydrophilicity of GO in order to allow for its good dispersibility in ink solvent. The introduction of BTA@GO in CQDs layer can build up a bulk nano-heterojunction architecture, which provides a smooth charge carrier transport channel in turn improves the carrier mobility and conductivity, extends the carriers lifetime and reduces the trap density of PbS-PbX2 CQDs film. Finally, the BTA@GO/PbS-PbX2 hybrid CQDs film-based relatively large-area (0.35 cm2) CQDSCs shows a champion power conversion efficiency of 11.7% which is increased by 23.1% compared with the control device.

Enhancing the efficiency of mixed halide mesoporous perovskite solar cells by introducing amine modified graphene oxide buffer layer

2020 ◽  
Vol 146 ◽  
pp. 1659-1666 ◽  
Author(s):  
Çiğdem Şahin ◽  
Halide Diker ◽  
Dimitra Sygkridou ◽  
Canan Varlikli ◽  
Elias Stathatos
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Buffer Layer ◽  
Perovskite Solar Cells ◽  
Modified Graphene Oxide ◽  
Modified Graphene

Improved CdS quantum dot distribution on a TiO2 photoanode by an atomic-layer-deposited ZnS passivation layer for quantum dot-sensitized solar cells

2020 ◽  
Vol 218 ◽  
pp. 110753
Author(s):  
Eun Sun Jung ◽  
Muhammad Abdul Basit ◽  
Muhammad Awais Abbas ◽  
Ijaz Ali ◽  
Dae Woong Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Atomic Layer ◽  
Passivation Layer ◽  
Cds Quantum Dot ◽  
Sensitized Solar Cells ◽  
Tio2 Photoanode
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