Titanium oxide morphology controls charge collection efficiency in quantum dot solar cells

2017 ◽  
Vol 19 (6) ◽  
pp. 4607-4617 ◽  
Author(s):  
Ankita Kolay ◽  
P. Naresh Kumar ◽  
Sarode Krishna Kumar ◽  
Melepurath Deepa
Keyword(s):  
Quantum Dot ◽  
Collection Efficiency ◽  
Current Collector ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Charge Collection ◽  
Charge Collection Efficiency ◽  
Interface Charge ◽  
Quantum Dot Solar Cells ◽  
Back Electron Transfer

Charge transfer at the TiO2/quantum dot (QD) interface, charge collection at the TiO2/QD/current collector (FTO or SnO2:F) interface, and back electron transfer at the TiO2/QDs/S2− interface are processes controlled by the electron transport layer or TiO2.

Nanowire-quantum-dot solar cells and the influence of nanowire length on the charge collection efficiency

2009 ◽  
Vol 95 (19) ◽  
pp. 193103 ◽  
Author(s):  
Kurtis S. Leschkies ◽  
Alan G. Jacobs ◽  
David J. Norris ◽  
Eray S. Aydil
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Collection Efficiency ◽  
Charge Collection ◽  
Charge Collection Efficiency ◽  
Quantum Dot Solar Cells

Understanding charge transfer and recombination by interface engineering for improving the efficiency of PbS quantum dot solar cells

2018 ◽  
Vol 3 (4) ◽  
pp. 417-429 ◽  
Author(s):  
Chao Ding ◽  
Yaohong Zhang ◽  
Feng Liu ◽  
Yukiko Kitabatake ◽  
Shuzi Hayase ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Electron Acceptor ◽  
Collection Efficiency ◽  
Charge Collection ◽  
Interface Engineering ◽  
Charge Collection Efficiency ◽  
Quantum Dot Solar Cells ◽  
Doped Zno ◽  
Pbs Quantum Dot ◽  
Mg Doped

In Mg-doped ZnO/PbS QDHSCs, a spike structure is formed between the QDs and the “electron acceptor”, which improved charge collection efficiency.

Hybrid Surface Passivation for Retrieving Charge Collection Efficiency of Colloidal Quantum Dot Photovoltaics

2020 ◽  
Vol 12 (39) ◽  
pp. 43576-43585
Author(s):  
Jonghee Yang ◽  
Jae Taek Oh ◽  
Minseon Kim ◽  
Hochan Song ◽  
Danil W. Boukhvalov ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Surface Passivation ◽  
Collection Efficiency ◽  
Charge Collection ◽  
Charge Collection Efficiency ◽  
Colloidal Quantum Dot

Near full light absorption and full charge collection in 1-micron thick quantum dot photodetector using intercalated graphene monolayer electrodes

Nanoscale ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 4909-4915 ◽  
Author(s):  
Wenjun Chen ◽  
Seungbae Ahn ◽  
Marquez Balingit ◽  
Jiaying Wang ◽  
Malcolm Lockett ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Light Absorption ◽  
Collection Efficiency ◽  
Charge Collection ◽  
Graphene Monolayer ◽  
Charge Collection Efficiency ◽  
High Charge ◽  
Full Charge

High charge collection efficiency in Vis and NIR using intercalated QD/Gr systems.

scholarly journals A Review on the Effects of ZnO Nanowire Morphology on the Performance of Interpenetrating Bulk Heterojunction Quantum Dot Solar Cells

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 114
Author(s):  
Meibo Xing ◽  
Longxiang Wang ◽  
Ruixiang Wang
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Bulk Heterojunction ◽  
Transport Layer ◽  
Synthetic Methods ◽  
Dimensional Structure ◽  
Electron Transport Layer ◽  
Zno Nanowire ◽  
Quantum Dot Solar Cells ◽  
Light Capture

Interpenetrating bulk heterojunction (IBHJ) quantum dot solar cells (QDSCs) offer a direct pathway for electrical contacts to overcome the trade-off between light absorption and carrier extraction. However, their complex three-dimensional structure creates higher requirements for the optimization of their design due to their more difficult interface defect states control, more complex light capture mechanism, and more advanced QD deposition technology. ZnO nanowire (NW) has been widely used as the electron transport layer (ETL) for this structure. Hence, the optimization of the ZnO NW morphology (such as density, length, and surface defects) is the key to improving the photoelectric performance of these SCs. In this study, the morphology control principles of ZnO NW for different synthetic methods are discussed. Furthermore, the effects of the density and length of the NW on the collection of photocarriers and their light capture effects are investigated. It is indicated that the NW spacing determines the transverse collection of electrons, while the length of the NW and the thickness of the SC often affect the longitudinal collection of holes. Finally, the optimization strategies for the geometrical morphology of and defect passivation in ZnO NWs are proposed to improve the efficiency of IBHJ QDSCs.

Efficient and Stable Colloidal Quantum Dot Solar Cells with a Green‐Solvent Hole‐Transport Layer

2020 ◽  
Vol 10 (39) ◽  
pp. 2002084
Author(s):  
Hong Il Kim ◽  
Junwoo Lee ◽  
Min‐Jae Choi ◽  
Seung Un Ryu ◽  
Kyoungwon Choi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Green Solvent ◽  
Quantum Dot Solar Cells ◽  
Colloidal Quantum Dot

3D imaging of radiation damage in silicon sensor and spatial mapping of charge collection efficiency

2013 ◽  
Vol 8 (03) ◽  
pp. C03023-C03023 ◽  
Author(s):  
M Jakubek ◽  
J Jakubek ◽  
J Zemlicka ◽  
M Platkevic ◽  
V Havranek ◽  
...  
Keyword(s):  
Radiation Damage ◽  
3D Imaging ◽  
Collection Efficiency ◽  
Charge Collection ◽  
Spatial Mapping ◽  
Charge Collection Efficiency ◽  
Silicon Sensor
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