# PbSe quantum dot superlattice thin films for thermoelectric applications https://mdr.nims.go.jp/datasets/4b156e27-e6f8-46b8-9360-5eb7f73fc5f8 ## File - [adfm.202403161_Manuscript.docx](https://mdr.nims.go.jp/filesets/e8a846f6-418b-4acc-aa73-04d1e9e07b68/download) ([Detail](https://mdr.nims.go.jp/filesets/e8a846f6-418b-4acc-aa73-04d1e9e07b68.md)) ## Id 4b156e27-e6f8-46b8-9360-5eb7f73fc5f8 ## Local identifier ## Visibility open_to_public ## State published ## Created at 2024-08-22T01:05:03.805711Z ## Updated at 2025-07-11T23:30:20.112517Z ## Published at 2025-07-11T23:17:30.324290Z ## Doi https://doi.org/10.48505/nims.4706 ## First published url https://doi.org/10.1002/adfm.202409216 ## Date published 2024-07-12 ## Recorded date published 2024-12 ## Resource type journal_article ## Manuscript type accepted_manuscript ## Collection ## Title - title: PbSe quantum dot superlattice thin films for thermoelectric applications title_type: original lang: en ## Description - description: An unusual self-assembly pattern was observed for highly ordered 1500-nm-thick films of monodisperse 13-nm-sized colloidal PbSe quantum dots, originating from their faceted truncated cube-like shape. Specifically, self-assembled PbSe dots exhibited attachment to the substrate by <001> planes followed by interconnection through the {001} facets in plan-view and {110} / {111} facets in cross-sectional-view, thus forming a cubic superlattice. The thermoelectric properties of the PbSe superlattice thin films were investigated by means of frequency domain thermoreflectance, scanning thermal probe microscopy, four probe measurements, and augmented by computational efforts. Thermal conductivity of the superlattice films was measured as low as 0.7 W m–1 K–1 at room temperature due to the developed nanostructure. The low values of electrical conductivity were attributed to the presence of insulating oleate capping ligands at the dots’ surface and the small contact area between the PbSe dots within the superlattice. Experimental efforts aiming at the removal of the oleate ligands were conducted by annealing or molten-salt treatment, and in the latter case, yielded a promising improvement by two orders of magnitude in thermoelectric performance. The result indicates that the straightforward molten-salt treatment is an interesting approach to derive thermoelectric dot superlattice thin films over a centimeter-sized area. description_type: abstract lang: eng ## Creator - name: Viviana Sousa role: author organization: University of Minho - name: Masahiro Goto role: author orcid: https://orcid.org/0000-0002-1003-2781 organization: National Institute for Materials Science department: Research Center for Materials Nanoarchitectonics (MANA)/Nanomaterials Field/Thermal Energy Materials Group ror: https://ror.org/026v1ze26 - name: Marcel S. Claro role: author organization: Universidade de Santiago de Compostela - name: Sergey Pyrlin role: author organization: University of Minho - name: Luis Marques role: author organization: University of Minho - name: Evgeny B. Modin role: author organization: CIC nanoGUNE - name: Oleg I. Lebedev role: author organization: Laboratoire de Cristallographie et Sciences des Matériaux (CRISMAT), Normandie Université - name: Siavash M. Alizadeh role: author organization: International Iberian Nanotechnology Laboratory - name: Cátia Freitas role: author organization: International Iberian Nanotechnology Laboratory - name: Eliana M. F. Vieira role: author organization: University of Minho - name: Kirill Kovnir role: author organization: Iowa State University - name: Pedro Alpuim role: author organization: University of Minho - name: Takao Mori role: author orcid: https://orcid.org/0000-0003-2682-1846 organization: National Institute for Materials Science department: Research Center for Materials Nanoarchitectonics (MANA) ror: https://ror.org/026v1ze26 - name: Yury V. Kolen’ko role: author organization: International Iberian Nanotechnology Laboratory ## Contact agent ## Publisher organization: Wiley-Blackwell ## Managing organization ## Keyword - subject: microstructure schema: not_defined - subject: molten salt schema: not_defined - subject: Seebeck coefficient schema: not_defined - subject: thermal conductivity schema: not_defined - subject: PbSe schema: not_defined - subject: transport properties schema: not_defined - subject: self-assembling schema: not_defined ## Rights - description: 'This is the peer reviewed version of the following article: V. Sousa, M. Goto, M. S. Claro, S. Pyrlin, L. Marques, E. B. Modin, O. I. Lebedev, S. M. Alizadeh, C. Freitas, E. M. F. Vieira, K. Kovnir, P. Alpuim, T. Mori, Y. V. Kolen''ko, PbSe Quantum Dot Superlattice Thin Films for Thermoelectric Applications. Adv. Funct. Mater. 2024, 2409216, which has been published in final form at https://doi.org/10.1002/adfm.202409216. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.' identifier: http://rightsstatements.org/vocab/InC/1.0/ ## Other identifier(s) ## Data origin - data_origin_type: other ## Embargo start_date: 2024-07-12 end_date: 2025-07-12 ## Journal - title: ADVANCED FUNCTIONAL MATERIALS issn: '16163028' article_number: '2409216' ## Conference ## Related item ## Funding - identifier: JPMJMI19A1 funder_name: 国立研究開発法人科学技術振興機構 description: JST Mirai Program ## Instrument ## Instrument operator ## Instrument managing organization ## Measurement method ## Specimen ## Chemical composition ## Structure for specimen ## Structural feature for specimen ## Specific property for specimen ## Process for specimen treatment ## Computational method ## Energy level/transition state ## Software ## Custom property ## Fileset - id: e8a846f6-418b-4acc-aa73-04d1e9e07b68 filename: adfm.202403161_Manuscript.docx content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document size: 8304714 md5: 2b38497a46c58c47689e35fdcbfed17d ## Thumbnail fileset_id: e8a846f6-418b-4acc-aa73-04d1e9e07b68 filename: adfm.202403161_Manuscript.docx