- Title
- Role of Morphology of Surfactant-Free Nanoparticles in Organic Photovoltaics
- Creator
- Darwis, Darmawati; Sesa, Elisa; Dastoor, Paul C.; Belcher, Warrick J.; Ulum, Syahrul; Holmes, Natalie P.; Feron, Krishna; Thameel, Mahir; Chowdhury, Riku; Farhamsah, Dedy; Tegg, Levi; Zhou, Xiaojing
- Relation
- Journal of Electronic Materials Vol. 49, Issue 7, p. 4168-4179
- Publisher Link
- http://dx.doi.org/10.1007/s11664-020-08144-4
- Publisher
- Springer
- Resource Type
- journal article
- Date
- 2020
- Description
- Nanoparticulate (NP) films and organic photovoltaic devices have been fabricated from poly(3-hexylthiophene):phenyl C61 butyric acid methyl ester (P3HT:PC61BM) NP aqueous dispersions prepared by the precipitation method. The NP inks were stable for more than 4 days, and nanoparticle organic photovoltaic (NP-OPV) devices with efficiency (η) of 1% were fabricated. Detailed analysis of the morphology and performance of the precipitated NP-OPV devices indicated that an optimal blend is responsible for the photocurrent and efficiency observed. These results were confirmed by grazing-incidence x-ray diffraction (GIXRD) analysis, which revealed that the precipitated NPs were resistant to thermal phase segregation, allowing thermal conditioning of the NP films. These results show that precipitated NPs provide a pathway to thermally stable NP-OPV devices with higher photocurrents and efficiencies, approaching those of optimal bulk heterojunction (BHJ) OPV devices.
- Subject
- ink stability; nanoparticle; nanoparticle morphology; organic photovoltaic cells; precipitation; surfactant-free; SDG 7; Sustainable Development Goals
- Identifier
- http://hdl.handle.net/1959.13/1444578
- Identifier
- uon:42346
- Identifier
- ISSN:0361-5235
- Language
- eng
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