Microwave-synthesized CZTS nanoparticles and their surface modification for the model hybrid photovoltaic devices
Authors:
- Katarzyna Matras-Postołek,
- Adam Żaba,
- Paweł Dąbczyński,
- Mateusz Marzec,
- Andrzej Bernasik,
- Jakub Rysz,
- Michał A. Borysiewicz,
- Tomasz Wojtowicz
Abstract
Environmentally friendly, colloidal nanocrystals (NCs) are promising materials for the next-generation, hybrid organic-inorganic photovoltaic devices obtained by solution-based methods because of their low cost, solution processability, and facile bandgap tunability. In this work, Cu2ZnSnS4 nanocrystals (CZTS NCs) with a diameter of 5 nm and the mixed crystal structure, including the kesterite and wurtzite phases, were synthesized using a "green" microwave-assisted process. The as-synthesized CZTS NCs were characterized with XRD, TEM, UV–Vis spectroscopy, PL spectroscopy, EDS, AFT-IR, XPS, and Raman spectroscopy. The photovoltaic (PV) performance of hybrid devices was studied and it consisted of ITO/PEDOT:PSS/active layer/Al, where CZTS NCs, model polymer PCDTBT, and PC70BM as an acceptor of electrons were in the active layer. In order to improve the charge transport and hydrophobicity of CZTS NCs in hybrid solar cells, the surface of the NCs was modified with four selected aromatic molecules, e.g. 1-aminonaphthalene, o-phenylenediamine, 2-naphthalenethiol, and 2naphtholic acid, respectively. The performance of the devices significantly depended on the type of the used target ligand for modification of the CZTS NCs and their concentration in the active layer. With a fixed concentration of NCs, the exchange of ligand from initial ethylenediamine, in the best case of o-phenylenediamine, results in a five-time boost in device efficiency. This optimization of the NC ligands also allows achieving c.a. 45 % relative increase in device efficiency compared to the reference system without NCs. The highest average photovoltaic efficiency of 2.82 % with the open circuit voltage (Voc) = 0.86 V, short circuit current density (Jsc) = 8.79 mA/cm2 , and fill factor (FF) = 0.41 was noted.
- Record ID
- CUTa8e61866174647c88137e24e1e01782c
- Publication categories
- ; ;
- Author
- Journal series
- Chemical Engineering and Processing : Process Intensification, ISSN 0255-2701, e-ISSN 1873-3204
- Issue year
- 2023
- Vol
- 194
- Pages
- [1-14]
- Article number
- 109606
- Other elements of collation
- fot.; tab.; wykr.; Bibliografia (na s.) - 13-14; Bibliografia (liczba pozycji) - 60; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 194, Spec. Iss.
- Substantive notes
- Supplementary material can be found at doi: 10.1016/j.cep.2023.109606
- Special Issue on 4th Global Congress on Microwave Energy Applications (GCMEA)
- Conference
- 4th Global Congress on Microwave Energy Applications (GCMEA), 2022, 17-08-2022 - 20-08-2022, Chengdu, Chiny
- Keywords in English
- CZTS, nanocrystal, microwave, surface modification, hybrid photovoltaic device, TOF-SIMS
- ASJC Classification
- ; ; ; ;
- DOI
- DOI:10.1016/j.cep.2023.109606 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/abs/pii/S0255270123003434 Opening in a new tab
- Related project
- Organiczno-nieorganiczne nanomateriały funkcjonalne dla optoelektroniki drukowanej 2D i 3D. . Project leader at PK: , ,
Projects financed by NCRD [Projekty finansowane przez NCBiR (NCBR (] - Language
- eng (en) English
- Score (nominal)
- 140
- Score source
- journalList
- Score
- Publication indicators
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTa8e61866174647c88137e24e1e01782c/
- URN
urn:pkr-prod:CUTa8e61866174647c88137e24e1e01782c
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.