Reducing Zn diffusion in single axial junction InP nanowire solar cells for improved performance
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Li, Ziyuan; Yang, Inseok; Li, Li; Gao, Qian; Chong, Jet Shoon; Li, Zhe; Lockrey, Mark; Tan, Hark Hoe; Jagadish, Chennupati; Fu, Lan
Description
In this work axial n-i-p junction InP nanowires were grown by selective-area metal organic vapor phase epitaxy (SA-MOVPE) technique with the growth sequence starting from n-segment. The optical properties and carrier lifetimes of the n-, i- and p-type segments were studied and compared using time-resolved photoluminescence (PL) and cathodoluminescence (CL) measurements. We demonstrate for the first time that CL is capable of resolving the electrical profile of the nanowires, namely the varied...[Show more]
dc.contributor.author | Li, Ziyuan | |
---|---|---|
dc.contributor.author | Yang, Inseok | |
dc.contributor.author | Li, Li | |
dc.contributor.author | Gao, Qian | |
dc.contributor.author | Chong, Jet Shoon | |
dc.contributor.author | Li, Zhe | |
dc.contributor.author | Lockrey, Mark | |
dc.contributor.author | Tan, Hark Hoe | |
dc.contributor.author | Jagadish, Chennupati | |
dc.contributor.author | Fu, Lan | |
dc.date.accessioned | 2021-11-25T23:05:47Z | |
dc.date.available | 2021-11-25T23:05:47Z | |
dc.identifier.issn | 1002-0071 | |
dc.identifier.uri | http://hdl.handle.net/1885/251975 | |
dc.description.abstract | In this work axial n-i-p junction InP nanowires were grown by selective-area metal organic vapor phase epitaxy (SA-MOVPE) technique with the growth sequence starting from n-segment. The optical properties and carrier lifetimes of the n-, i- and p-type segments were studied and compared using time-resolved photoluminescence (PL) and cathodoluminescence (CL) measurements. We demonstrate for the first time that CL is capable of resolving the electrical profile of the nanowires, namely the varied lengths of the n-, i- and p-segments, providing a simple and effective approach for nanowire growth calibration and optimization. The CL result was further confirmed by electron beam induced current (EBIC) and photocurrent mapping measurements performed from the fabricated single nanowire solar cell devices. It is revealed that despite a non-optimized device structure (very long n-region and short i-region), the n-i-p nanowire solar cells show improved power conversion efficiency (PCE) than the previously reported p-i-n (growth starts with p-segment) single nanowire solar cells due to reduced p-type dopant (Zn) diffusion during the growth of n-i-p solar cell structure. | |
dc.description.sponsorship | The authors acknowledge the Australian Research Council (ARC) for financial support and the Australian National Fabrication Facility (ANFF) ACT node for facility support. | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_AU | |
dc.publisher | Elsevier | |
dc.rights | © 2018 Chinese Materials Research Society. Published by Elsevier B.V. | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source | Progress in Natural Science: Materials International | |
dc.subject | InP | |
dc.subject | Nanowire solar cells | |
dc.subject | Axial junction | |
dc.subject | Selective-area MOVPE | |
dc.subject | CL | |
dc.subject | EBIC | |
dc.title | Reducing Zn diffusion in single axial junction InP nanowire solar cells for improved performance | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 28 | |
dc.date.issued | 2018 | |
local.identifier.absfor | 090605 - Photodetectors, Optical Sensors and Solar Cells | |
local.identifier.absfor | 020504 - Photonics, Optoelectronics and Optical Communications | |
local.identifier.absfor | 100711 - Nanophotonics | |
local.identifier.ariespublication | a383154xPUB9991 | |
local.publisher.url | https://www.elsevier.com/en-au | |
local.type.status | Published Version | |
local.contributor.affiliation | Li, Ziyuan, College of Science, ANU | |
local.contributor.affiliation | Yang, Inseok, College of Science, ANU | |
local.contributor.affiliation | Li, Li (Lily), College of Science, ANU | |
local.contributor.affiliation | Gao, Qian, College of Science, ANU | |
local.contributor.affiliation | Chong, Jet Shoon, College of Science, ANU | |
local.contributor.affiliation | Li, Zhe, College of Science, ANU | |
local.contributor.affiliation | Lockrey, Mark, College of Science, ANU | |
local.contributor.affiliation | Tan, Hoe, College of Science, ANU | |
local.contributor.affiliation | Jagadish, Chennupati, College of Science, ANU | |
local.contributor.affiliation | Fu, Lan, College of Science, ANU | |
local.bibliographicCitation.issue | 2 | |
local.bibliographicCitation.startpage | 178 | |
local.bibliographicCitation.lastpage | 182 | |
local.identifier.doi | 10.1016/j.pnsc.2018.01.014 | |
local.identifier.absseo | 850504 - Solar-Photovoltaic Energy | |
local.identifier.absseo | 970102 - Expanding Knowledge in the Physical Sciences | |
dc.date.updated | 2020-11-23T11:52:22Z | |
local.identifier.scopusID | 2-s2.0-85044536234 | |
dcterms.accessRights | Open Access | |
dc.provenance | This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/BY-NC-ND/4.0/). | |
dc.rights.license | CC BY-NC-ND license | |
Collections | ANU Research Publications |
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