Article: Studies on surface preparation and smoothness of nanostructured Bi 2Te 3-based alloys by electrochemical and mechanical methods
| Title | Studies on surface preparation and smoothness of nanostructured Bi 2Te 3-based alloys by electrochemical and mechanical methods | ||||
|---|---|---|---|---|---|
| Authors | Feng, HP1 Yu, B2 Chen, S1 Collins, K1 He, C1 Ren, ZF2 Chen, G1 | ||||
| Keywords | Bismuth telluride based alloys Chemical mechanical polishing Electrolysis Nanostructures Thermoelectrics | ||||
| Issue Date | 2011 | ||||
| Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/electacta | ||||
| Citation | Electrochimica Acta, 2011, v. 56 n. 8, p. 3079-3084 [How to Cite?] DOI: http://dx.doi.org/10.1016/j.electacta.2010.12.008 | ||||
| Abstract | Significant improvements in the dimensionless thermoelectric figure-of-merit (ZT) for nanostructured bismuth telluride, Bi 2Te 3, and its alloys have been demonstrated. In designing high-performance thermoelectric devices, variations in the thermal and electrical contact resistances due to interfacial effects between the nanostructured alloy and the metallic electrodes remain a significant issue. Smooth scratch-free surfaces should provide a baseline for contact resistance studies. In this paper, the root mean square roughness over a 10 μm 2 of nanostructured bismuth tellurium based alloys was reduced from 133 nm to 1.9 nm by a procedure consisting of electrolysis, mechanical polishing, and chemical mechanical polishing (CMP). Post-CMP cleaning was also developed to yield a wettable surface for the subsequent conformable metallization. © 2010 Elsevier Ltd. All rights reserved. | ||||
| ISSN | 0013-4686 2011 Impact Factor: 3.832 2011 SCImago Journal Rankings: 0.262 | ||||
| DOI | http://dx.doi.org/10.1016/j.electacta.2010.12.008 | ||||
| ISI Accession Number ID | WOS:000289133000014
Funding Information: The authors thank Jonathan K. Tong and Dr. Sheng Shen for very helpful discussions and editorial assistance, and also thank Daniel Kraemer for fabricating the polishing jig. This work is supported by "Solid State Solar-Thermal Energy Conversion Center (S3TEC)", an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number: DE-SC0001299 (G.C. and Z.F.R.). | ||||
| References | References in Scopus |
| dc.contributor.author | Feng, HP | ||||
|---|---|---|---|---|---|
| dc.contributor.author | Yu, B | ||||
| dc.contributor.author | Chen, S | ||||
| dc.contributor.author | Collins, K | ||||
| dc.contributor.author | He, C | ||||
| dc.contributor.author | Ren, ZF | ||||
| dc.contributor.author | Chen, G | ||||
| dc.date.accessioned | 2011-10-10T07:13:46Z | ||||
| dc.date.available | 2011-10-10T07:13:46Z | ||||
| dc.date.issued | 2011 | ||||
| dc.description.abstract | Significant improvements in the dimensionless thermoelectric figure-of-merit (ZT) for nanostructured bismuth telluride, Bi 2Te 3, and its alloys have been demonstrated. In designing high-performance thermoelectric devices, variations in the thermal and electrical contact resistances due to interfacial effects between the nanostructured alloy and the metallic electrodes remain a significant issue. Smooth scratch-free surfaces should provide a baseline for contact resistance studies. In this paper, the root mean square roughness over a 10 μm 2 of nanostructured bismuth tellurium based alloys was reduced from 133 nm to 1.9 nm by a procedure consisting of electrolysis, mechanical polishing, and chemical mechanical polishing (CMP). Post-CMP cleaning was also developed to yield a wettable surface for the subsequent conformable metallization. © 2010 Elsevier Ltd. All rights reserved. | ||||
| dc.description.nature | Link_to_subscribed_fulltext | ||||
| dc.identifier.citation | Electrochimica Acta, 2011, v. 56 n. 8, p. 3079-3084 [How to Cite?] DOI: http://dx.doi.org/10.1016/j.electacta.2010.12.008 | ||||
| dc.identifier.citeulike | 8450014 | ||||
| dc.identifier.doi | http://dx.doi.org/10.1016/j.electacta.2010.12.008 | ||||
| dc.identifier.epage | 3084 | ||||
| dc.identifier.isi | WOS:000289133000014
Funding Information: The authors thank Jonathan K. Tong and Dr. Sheng Shen for very helpful discussions and editorial assistance, and also thank Daniel Kraemer for fabricating the polishing jig. This work is supported by "Solid State Solar-Thermal Energy Conversion Center (S3TEC)", an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number: DE-SC0001299 (G.C. and Z.F.R.). | ||||
| dc.identifier.issn | 0013-4686 2011 Impact Factor: 3.832 2011 SCImago Journal Rankings: 0.262 | ||||
| dc.identifier.issue | 8 | ||||
| dc.identifier.scopus | eid_2-s2.0-79952445070 | ||||
| dc.identifier.spage | 3079 | ||||
| dc.identifier.uri | http://hdl.handle.net/10722/142041 | ||||
| dc.identifier.volume | 56 | ||||
| dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/electacta | ||||
| dc.publisher.place | United Kingdom | ||||
| dc.relation.ispartof | Electrochimica Acta | ||||
| dc.relation.references | References in Scopus | ||||
| dc.subject | Bismuth telluride based alloys | ||||
| dc.subject | Chemical mechanical polishing | ||||
| dc.subject | Electrolysis | ||||
| dc.subject | Nanostructures | ||||
| dc.subject | Thermoelectrics | ||||
| dc.title | Studies on surface preparation and smoothness of nanostructured Bi 2Te 3-based alloys by electrochemical and mechanical methods | ||||
| dc.type | Article |
Author Affiliations
- Massachusetts Institute of Technology
- Boston College