Ligand-dependent exciton dynamics and photovoltaic properties of PbS quantum dot heterojunction solar cells

2017 ◽  
Vol 19 (9) ◽  
pp. 6358-6367 ◽  
Author(s):  
Jin Chang ◽  
Yuhei Ogomi ◽  
Chao Ding ◽  
Yao Hong Zhang ◽  
Taro Toyoda ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Photovoltaic Properties ◽  
Exciton Dynamics ◽  
Heterojunction Solar Cells ◽  
Ligand Effects ◽  
Surface Ligand ◽  
Pbs Quantum Dot

Surface ligand effects on the exciton dynamics and photovoltaic properties of PbS QDHSCs were systematically investigated.

scholarly journals Annealing-Temperature Dependent Carrier-Transportation in ZnO/PbS Quantum Dot Solar Cells Fabricated Using Liquid-Phase Ligand Exchange Methods

Energies ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 5037
Author(s):  
Akihiro Takahashi ◽  
Haibin Wang ◽  
Takeshi Fukuda ◽  
Norihiko Kamata ◽  
Takaya Kubo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Liquid Phase ◽  
Quantum Dot ◽  
Active Layer ◽  
Ligand Exchange ◽  
Carrier Transport ◽  
Annealing Temperature ◽  
Defect States ◽  
Heterojunction Solar Cells ◽  
Pbs Quantum Dot

We constructed ZnO/PbS quantum dot (QD) heterojunction solar cells using liquid-phase ligand exchange methods. Colloidal QD solutions deposited on ZnO-dense layers were treated at different temperatures to systematically study how thermal annealing temperature affected carrier transport properties. The surface of the layers became dense and smooth as the temperature approached approximately 80 °C. The morphology of layers became rough for higher temperatures, causing large grain-forming PbS QD aggregation. The number of defect states in the layers indicated a valley-shaped profile with a minimum of 80 °C. This temperature dependence was closely related to the amount of residual n-butylamine complexes in the PbS QD layers and the active layer morphology. The resulting carrier diffusion length obtained on the active layers treated at 80 °C reached approximately 430 nm. The solar cells with a 430-nm-thick active layer produced a power conversion efficiency (PCE) of 11.3%. An even higher PCE is expected in solar cells fabricated under optimal annealing conditions.

Efficiency Enhancement of PbS Quantum Dot/ZnO Nanowire Bulk-Heterojunction Solar Cells by Plasmonic Silver Nanocubes

ACS Nano ◽  
2015 ◽  
Vol 9 (4) ◽  
pp. 4165-4172 ◽  
Author(s):  
Tokuhisa Kawawaki ◽  
Haibin Wang ◽  
Takaya Kubo ◽  
Koichiro Saito ◽  
Jotaro Nakazaki ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Bulk Heterojunction ◽  
Efficiency Enhancement ◽  
Zno Nanowire ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Silver Nanocubes ◽  
Pbs Quantum Dot

Study on the performance of ZMO/PbS quantum dot heterojunction solar cells

Solar Energy ◽  
2021 ◽  
Vol 213 ◽  
pp. 53-58
Author(s):  
Meibo Xing ◽  
Yuyao Wei ◽  
Ruixiang Wang ◽  
Zhentao Zhang
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Heterojunction Solar Cells ◽  
Pbs Quantum Dot
Sign in / Sign up

Export Citation Format

Share Document