Formation of unique nanocrystalline Cu-In-Se bulk pn homojunctions for opto-electronic devices

Detalhes bibliográficos
Autor(a) principal: Menezes, Shalini
Data de Publicação: 2018
Outros Autores: Samantilleke, A. P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/65792
Resumo: Semiconductor pn junctions, integrated in optoelectronic devices require high quality crystals, made by expensive, technically difficult processes. Bulk heterojunction (BHJ) structures offer practical alternatives to circumvent the cost, flexibility and scale-up challenges of crystalline planar pn junctions. Fabrication methods for the current organic or inorganic BHJ structures invariably create interface mismatch and low doping issues. To overcome such issues, we devised an innovative approach, founded on novel inorganic material system that ensued from single-step electrodeposited copper-indium-selenide compounds. Surface analytical microscopies and spectroscopies reveal unusual phenomena, electro-optical properties and quantum effects. They support the formation of highly-ordered, sharp, abrupt 3-dimensional nanoscale pn BHJs that facilitate efficient charge carrier separation and transport, and essentially perform the same functions as crystalline planar pn junctions. This approach offers a low-cost processing platform to create nanocrystalline films, with the attributes necessary for efficient BHJ operation. It allows roll-to-roll processing of flexible devices in simple thin-film form factor.
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spelling Formation of unique nanocrystalline Cu-In-Se bulk pn homojunctions for opto-electronic devicesScience & TechnologySemiconductor pn junctions, integrated in optoelectronic devices require high quality crystals, made by expensive, technically difficult processes. Bulk heterojunction (BHJ) structures offer practical alternatives to circumvent the cost, flexibility and scale-up challenges of crystalline planar pn junctions. Fabrication methods for the current organic or inorganic BHJ structures invariably create interface mismatch and low doping issues. To overcome such issues, we devised an innovative approach, founded on novel inorganic material system that ensued from single-step electrodeposited copper-indium-selenide compounds. Surface analytical microscopies and spectroscopies reveal unusual phenomena, electro-optical properties and quantum effects. They support the formation of highly-ordered, sharp, abrupt 3-dimensional nanoscale pn BHJs that facilitate efficient charge carrier separation and transport, and essentially perform the same functions as crystalline planar pn junctions. This approach offers a low-cost processing platform to create nanocrystalline films, with the attributes necessary for efficient BHJ operation. It allows roll-to-roll processing of flexible devices in simple thin-film form factor.Partial funding for this work is provided by customers of Xcel Energy through a grant from the Renewable Development Fund. The authors gratefully acknowledge sample preparation, analytical contributions and useful discussions with Sharmila Menezes and Yan Li (InterPhases Solar); Senli Guo (Brucker Nano); Terrence McGuckin (Ephemeron Labs); and Nassim Rahimi (HORIBA Scientific). A. Samantilleke acknowledges Prof. L. M. Peter (Bath University, UK) for introducing EER technique.Nature ResearchUniversidade do MinhoMenezes, ShaliniSamantilleke, A. P.2018-07-272018-07-27T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/65792eng2045-232210.1038/s41598-018-29457-930054504https://www.nature.com/articles/s41598-018-29457-9.pdfinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:21:08Zoai:repositorium.sdum.uminho.pt:1822/65792Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:14:20.042478Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Formation of unique nanocrystalline Cu-In-Se bulk pn homojunctions for opto-electronic devices
title Formation of unique nanocrystalline Cu-In-Se bulk pn homojunctions for opto-electronic devices
spellingShingle Formation of unique nanocrystalline Cu-In-Se bulk pn homojunctions for opto-electronic devices
Menezes, Shalini
Science & Technology
title_short Formation of unique nanocrystalline Cu-In-Se bulk pn homojunctions for opto-electronic devices
title_full Formation of unique nanocrystalline Cu-In-Se bulk pn homojunctions for opto-electronic devices
title_fullStr Formation of unique nanocrystalline Cu-In-Se bulk pn homojunctions for opto-electronic devices
title_full_unstemmed Formation of unique nanocrystalline Cu-In-Se bulk pn homojunctions for opto-electronic devices
title_sort Formation of unique nanocrystalline Cu-In-Se bulk pn homojunctions for opto-electronic devices
author Menezes, Shalini
author_facet Menezes, Shalini
Samantilleke, A. P.
author_role author
author2 Samantilleke, A. P.
author2_role author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Menezes, Shalini
Samantilleke, A. P.
dc.subject.por.fl_str_mv Science & Technology
topic Science & Technology
description Semiconductor pn junctions, integrated in optoelectronic devices require high quality crystals, made by expensive, technically difficult processes. Bulk heterojunction (BHJ) structures offer practical alternatives to circumvent the cost, flexibility and scale-up challenges of crystalline planar pn junctions. Fabrication methods for the current organic or inorganic BHJ structures invariably create interface mismatch and low doping issues. To overcome such issues, we devised an innovative approach, founded on novel inorganic material system that ensued from single-step electrodeposited copper-indium-selenide compounds. Surface analytical microscopies and spectroscopies reveal unusual phenomena, electro-optical properties and quantum effects. They support the formation of highly-ordered, sharp, abrupt 3-dimensional nanoscale pn BHJs that facilitate efficient charge carrier separation and transport, and essentially perform the same functions as crystalline planar pn junctions. This approach offers a low-cost processing platform to create nanocrystalline films, with the attributes necessary for efficient BHJ operation. It allows roll-to-roll processing of flexible devices in simple thin-film form factor.
publishDate 2018
dc.date.none.fl_str_mv 2018-07-27
2018-07-27T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/65792
url http://hdl.handle.net/1822/65792
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2045-2322
10.1038/s41598-018-29457-9
30054504
https://www.nature.com/articles/s41598-018-29457-9.pdf
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Nature Research
publisher.none.fl_str_mv Nature Research
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