eprintid: 3324
rev_number: 15
eprint_status: archive
userid: 401
dir: disk0/00/00/33/24
datestamp: 2018-12-19 05:07:30
lastmod: 2018-12-19 09:21:51
status_changed: 2018-12-19 05:07:30
type: article
metadata_visibility: show
creators_name: Nguyen, Thu Ha
creators_name: Nguyen, Dinh Lam
creators_id: lamnd2005@vnu.edu.vn
title: Influences of Morphology of Window Layer on the Characteristics of PbS Quantum Dot Solar Cells
ispublished: pub
subjects: Phys
subjects: isi
divisions: fac_physic
abstract: Background: In QDs-based solar cell devices, the PbS QDs layer was mainly focused
to optimize. The ZnO electron acceptor layer attracts less attention whereas it shows the key
roles in extracting and transporting charge carriers in heterojunction. The utilization of 1-D ZnO
structures has been demonstrated to be large interface areas and good carrier pathways for efficient carrier collection. However, the influences of the morphology of metal oxide nanostructures on the photovoltaic performance of QD-based solar cells have been few in-depth reports.
Objective: In this work, ZnO NRs/PbS QD based solar cells were fabricated. The influences of
the ZnO NRs array structures on characteristics of ZnO NRs/PbS QD based solar cells were investigated.
Method: ZnO NRs/PbS QD based solar cells were fabricated via spin coating method. XRD,
SEM, UV-VIS-NIR spectrophotometer, I-V and EQE measurement systems were utilized to investigate the fabricated samples.
Results: We have found optimum combinations of the linked parameters of ZnO NRs, their
length of (230 ± 5) nm and density of (1.50 ± 5)x1010 # of rods.cm-2, that exhibit maximum efficiency of ∼2.5% for the ZnO NR/PbS QDs based solar cell.
Conclusion: The influences the ZnO NRs structures on the solar cell characteristics, including
the absorption, external quantum efficiency, and current density-voltage curves, were investigated. There seems to be an optimum between NR length and their density for resulting in maximum efficiency. This could be due the interplay of solar flux absorption and junction area controlled by these two parameters of ZnO NR morphology.
date: 2018
date_type: published
publisher: Benthamscience
official_url: https://benthamscience.com/journals/current-nanoscience/volume/14/issue/3/page/234/
full_text_status: public
publication: Current nanoscience
volume: 14
pagerange: 234-238
refereed: TRUE
funders: Vietnam National Foundation for Science and Technology Development
projects: Chế tạo, khảo sát, và tăng hiệu suất chuyển đổi năng lượng của pin mặt trời sử dụng vật liệu chấm lượng tử (103.99-2014.60)
citation:   Nguyen, Thu Ha and Nguyen, Dinh Lam  (2018) Influences of Morphology of Window Layer on the Characteristics of PbS Quantum Dot Solar Cells.  Current nanoscience, 14 .   pp. 234-238.      
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/3324/1/current%20nanoscience-2018.pdf