Journal article
Studying the effect of high substrate temperature on the microstructure of vacuum evaporated TAPC: C60 organic solar thin films
- Abstract:
- Organic solar cells (OSCs), also known as organic photovoltaics (OPVs), are an emerging solar cell technology composed of carbon-based, organic molecules, which convert energy from the sun into electricity. Key for their performance is the microstructure of the light-absorbing organic bulk heterojunction. To study this, organic solar films composed of both fullerene C60 as electron acceptor and different mole percentages of di-[4-(N,N-di-p-tolyl-amino)-phenyl]-cyclohexane (TAPC) as electron donor were evaporated in vacuum in different mixing ratios (5, 50 and 95 mol%) on an ITO-coated glass substrate held at room temperature and at 110 °C. The microstructure of the C60: TAPC heterojunction was studied by grazing incidence wide angle X-ray scattering to understand the effect of substrate heating. By increasing the substrate temperature from ambient to 110 °C, it was found that no significant change was observed in the crystal size for the C60: TAPC concentrations investigated in this study. In addition to the variation done in the substrate temperature, the variation of the mole percent of the donor (TAPC) was studied to conclude the effect of both the substrate temperature and the donor concentration on the microstructure of the OSC films. Bragg peaks were attributed to C60 in the pure C60 sample and in the blend with low donor mole percentage (5%), but the C60 peaks became nondiscernible when the donor mole percentage was increased to 50% and above, showing that TAPC interrupted the formation of C60 crystals.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Version of record, pdf, 2.9MB, Terms of use)
-
- Publisher copy:
- 10.3390/ma14071733
Authors
- Publisher:
- MDPI
- Journal:
- Materials More from this journal
- Volume:
- 14
- Issue:
- 7
- Article number:
- 1733
- Place of publication:
- Switzerland
- Publication date:
- 2021-04-01
- Acceptance date:
- 2021-03-25
- DOI:
- ISSN:
-
1996-1944
- Pmid:
-
33916107
- Language:
-
English
- Keywords:
- Pubs id:
-
1174181
- Local pid:
-
pubs:1174181
- Deposit date:
-
2023-06-28
Terms of use
- Copyright holder:
- Abdelaal et al
- Copyright date:
- 2021
- Rights statement:
- © 2021 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 (https:// creativecommons.org/licenses/by/ 4.0/).
- Licence:
- CC Attribution (CC BY)
If you are the owner of this record, you can report an update to it here: Report update to this record