Cargando…
Functionalized rGO Interlayers Improve the Fill Factor and Current Density in PbS QDs-Based Solar Cells
Graphene-quantum dot nanocomposites attract significant attention for novel optoelectronic devices, such as ultrafast photodetectors and third-generation solar cells. Combining the remarkable optical properties of quantum dots (QDs) with the exceptional electrical properties of graphene derivatives...
Autores principales: | , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6947317/ https://www.ncbi.nlm.nih.gov/pubmed/31888184 http://dx.doi.org/10.3390/ma12244221 |
_version_ | 1783485522493046784 |
---|---|
author | Babaev, Anton A. Parfenov, Peter S. Onishchuk, Dmitry A. Dubavik, Aliaksei Cherevkov, Sergei A. Rybin, Andrei V. Baranov, Mikhail A. Baranov, Alexander V. Litvin, Aleksandr P. Fedorov, Anatoly V. |
author_facet | Babaev, Anton A. Parfenov, Peter S. Onishchuk, Dmitry A. Dubavik, Aliaksei Cherevkov, Sergei A. Rybin, Andrei V. Baranov, Mikhail A. Baranov, Alexander V. Litvin, Aleksandr P. Fedorov, Anatoly V. |
author_sort | Babaev, Anton A. |
collection | PubMed |
description | Graphene-quantum dot nanocomposites attract significant attention for novel optoelectronic devices, such as ultrafast photodetectors and third-generation solar cells. Combining the remarkable optical properties of quantum dots (QDs) with the exceptional electrical properties of graphene derivatives opens a vast perspective for further growth in solar cell efficiency. Here, we applied (3-mercaptopropyl) trimethoxysilane functionalized reduced graphene oxide (f-rGO) to improve the QDs-based solar cell active layer. The different strategies of f-rGO embedding are explored. When f-rGO interlayers are inserted between PbS QD layers, the solar cells demonstrate a higher current density and a better fill factor. A combined study of the morphological and electrical parameters of the solar cells shows that the improved efficiency is associated with better layer homogeneity, lower trap-state densities, higher charge carrier concentrations, and the blocking of the minor charge carriers. |
format | Online Article Text |
id | pubmed-6947317 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-69473172020-01-13 Functionalized rGO Interlayers Improve the Fill Factor and Current Density in PbS QDs-Based Solar Cells Babaev, Anton A. Parfenov, Peter S. Onishchuk, Dmitry A. Dubavik, Aliaksei Cherevkov, Sergei A. Rybin, Andrei V. Baranov, Mikhail A. Baranov, Alexander V. Litvin, Aleksandr P. Fedorov, Anatoly V. Materials (Basel) Article Graphene-quantum dot nanocomposites attract significant attention for novel optoelectronic devices, such as ultrafast photodetectors and third-generation solar cells. Combining the remarkable optical properties of quantum dots (QDs) with the exceptional electrical properties of graphene derivatives opens a vast perspective for further growth in solar cell efficiency. Here, we applied (3-mercaptopropyl) trimethoxysilane functionalized reduced graphene oxide (f-rGO) to improve the QDs-based solar cell active layer. The different strategies of f-rGO embedding are explored. When f-rGO interlayers are inserted between PbS QD layers, the solar cells demonstrate a higher current density and a better fill factor. A combined study of the morphological and electrical parameters of the solar cells shows that the improved efficiency is associated with better layer homogeneity, lower trap-state densities, higher charge carrier concentrations, and the blocking of the minor charge carriers. MDPI 2019-12-16 /pmc/articles/PMC6947317/ /pubmed/31888184 http://dx.doi.org/10.3390/ma12244221 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Babaev, Anton A. Parfenov, Peter S. Onishchuk, Dmitry A. Dubavik, Aliaksei Cherevkov, Sergei A. Rybin, Andrei V. Baranov, Mikhail A. Baranov, Alexander V. Litvin, Aleksandr P. Fedorov, Anatoly V. Functionalized rGO Interlayers Improve the Fill Factor and Current Density in PbS QDs-Based Solar Cells |
title | Functionalized rGO Interlayers Improve the Fill Factor and Current Density in PbS QDs-Based Solar Cells |
title_full | Functionalized rGO Interlayers Improve the Fill Factor and Current Density in PbS QDs-Based Solar Cells |
title_fullStr | Functionalized rGO Interlayers Improve the Fill Factor and Current Density in PbS QDs-Based Solar Cells |
title_full_unstemmed | Functionalized rGO Interlayers Improve the Fill Factor and Current Density in PbS QDs-Based Solar Cells |
title_short | Functionalized rGO Interlayers Improve the Fill Factor and Current Density in PbS QDs-Based Solar Cells |
title_sort | functionalized rgo interlayers improve the fill factor and current density in pbs qds-based solar cells |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6947317/ https://www.ncbi.nlm.nih.gov/pubmed/31888184 http://dx.doi.org/10.3390/ma12244221 |
work_keys_str_mv | AT babaevantona functionalizedrgointerlayersimprovethefillfactorandcurrentdensityinpbsqdsbasedsolarcells AT parfenovpeters functionalizedrgointerlayersimprovethefillfactorandcurrentdensityinpbsqdsbasedsolarcells AT onishchukdmitrya functionalizedrgointerlayersimprovethefillfactorandcurrentdensityinpbsqdsbasedsolarcells AT dubavikaliaksei functionalizedrgointerlayersimprovethefillfactorandcurrentdensityinpbsqdsbasedsolarcells AT cherevkovsergeia functionalizedrgointerlayersimprovethefillfactorandcurrentdensityinpbsqdsbasedsolarcells AT rybinandreiv functionalizedrgointerlayersimprovethefillfactorandcurrentdensityinpbsqdsbasedsolarcells AT baranovmikhaila functionalizedrgointerlayersimprovethefillfactorandcurrentdensityinpbsqdsbasedsolarcells AT baranovalexanderv functionalizedrgointerlayersimprovethefillfactorandcurrentdensityinpbsqdsbasedsolarcells AT litvinaleksandrp functionalizedrgointerlayersimprovethefillfactorandcurrentdensityinpbsqdsbasedsolarcells AT fedorovanatolyv functionalizedrgointerlayersimprovethefillfactorandcurrentdensityinpbsqdsbasedsolarcells |