Perovskite Solar Cells Employing Copper Phthalocyanine Hole-Transport Material with an Efficiency over 20% and Excellent Thermal Stability
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Duong, The; Peng, Jun; Walter, Daniel; Xiang, Jin; Shen, Heping; Chugh, Dipankar; Lockrey, Mark; Zhong, Dingyong; Li, Juntao; Weber, Klaus; White, Thomas; Catchpole, Kylie
Description
We investigate the properties of an inexpensive hole-transporting material (HTM), copper phthalocyanine (CuPc), deposited by a solution-processing method in perovskite solar cells (PSCs). Cracks are found to be abundant on the as-deposited CuPc films, which lead to serious shunts and interface recombination. Surprisingly, shunts and interface recombination are significantly reduced and cell performance is greatly improved after heat treatment at 85 °C. We find that the enhancement is due to...[Show more]
dc.contributor.author | Duong, The | |
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dc.contributor.author | Peng, Jun | |
dc.contributor.author | Walter, Daniel | |
dc.contributor.author | Xiang, Jin | |
dc.contributor.author | Shen, Heping | |
dc.contributor.author | Chugh, Dipankar | |
dc.contributor.author | Lockrey, Mark | |
dc.contributor.author | Zhong, Dingyong | |
dc.contributor.author | Li, Juntao | |
dc.contributor.author | Weber, Klaus | |
dc.contributor.author | White, Thomas | |
dc.contributor.author | Catchpole, Kylie | |
dc.date.accessioned | 2019-10-09T04:09:23Z | |
dc.identifier.issn | 2380-8195 | |
dc.identifier.uri | http://hdl.handle.net/1885/173587 | |
dc.description.abstract | We investigate the properties of an inexpensive hole-transporting material (HTM), copper phthalocyanine (CuPc), deposited by a solution-processing method in perovskite solar cells (PSCs). Cracks are found to be abundant on the as-deposited CuPc films, which lead to serious shunts and interface recombination. Surprisingly, shunts and interface recombination are significantly reduced and cell performance is greatly improved after heat treatment at 85 °C. We find that the enhancement is due to heat-induced migration of Au particles away from the cracks. Furthermore, Au is found to dope the CuPc film, and the doping effect is greatly enhanced by the heat treatment. Using CuPc and quadruple-cation perovskite, an efficiency of over 20% and negligible hysteresis is achieved after the heat treatment, which is the highest value reported for this structure. Additionally, PSCs employing CuPc and dual-cation perovskite show excellent thermal stability after >2000 h at 85 °C and good light stability at 25 °C. | |
dc.description.sponsorship | The authors acknowledge the Department of Electronic Materials Engineering − ANU for providing GIXRD equipment access. T.D. acknowledges the support of a Postdoc Fellowship from the Australian Centre for Advanced Photovoltaics (ACAP). J.X., D.Z., and J.L. acknowledge funding from MSTC (Grant No. 2016YFA0301300), NNSFC (Grant No. 11674402), and GSTP (Grant Nos. 201607010044 and 201607020023). | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_AU | |
dc.publisher | American Chemical Society | |
dc.rights | © 2018 American Chemical Society | |
dc.source | ACS Energy Letters | |
dc.title | Perovskite Solar Cells Employing Copper Phthalocyanine Hole-Transport Material with an Efficiency over 20% and Excellent Thermal Stability | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 3 | |
dc.date.issued | 2018 | |
local.identifier.absfor | 020406 - Surfaces and Structural Properties of Condensed Matter | |
local.identifier.ariespublication | u4485658xPUB1277 | |
local.publisher.url | https://pubs.acs.org/ | |
local.type.status | Published Version | |
local.contributor.affiliation | Duong, The, College of Engineering and Computer Science, ANU | |
local.contributor.affiliation | Peng, Jun, College of Engineering and Computer Science, ANU | |
local.contributor.affiliation | Walter, Daniel, College of Engineering and Computer Science, ANU | |
local.contributor.affiliation | Xiang, Jin, Sun Yat-sen University | |
local.contributor.affiliation | Shen, Heping, College of Engineering and Computer Science, ANU | |
local.contributor.affiliation | Chugh, Dipankar, College of Science, ANU | |
local.contributor.affiliation | Lockrey, Mark, College of Science, ANU | |
local.contributor.affiliation | Zhong, Dingyong, Sun Yat-sen University | |
local.contributor.affiliation | Li, Juntao, Sun Yat-sen University | |
local.contributor.affiliation | Weber, Klaus, College of Engineering and Computer Science, ANU | |
local.contributor.affiliation | White, Thomas, College of Engineering and Computer Science, ANU | |
local.contributor.affiliation | Catchpole, Kylie, College of Engineering and Computer Science, ANU | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.issue | 10 | |
local.bibliographicCitation.startpage | 2441 | |
local.bibliographicCitation.lastpage | 2448 | |
local.identifier.doi | 10.1021/acsenergylett.8b01483 | |
local.identifier.absseo | 970102 - Expanding Knowledge in the Physical Sciences | |
dc.date.updated | 2019-04-21T08:29:28Z | |
local.identifier.scopusID | 2-s2.0-85053839911 | |
Collections | ANU Research Publications |
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