Change search
ReferencesLink to record
Permanent link

Direct link
Boosting the efficiency and the stability of low cost perovskite solar cells by using CuPc nanorods as hole transport material and carbon as counter electrode
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
Show others and affiliations
2016 (English)In: Nano Energy, ISSN 2211-2855, Vol. 20, 108-116 p.Article in journal (Refereed) PublishedText
Abstract [en]

Low temperature printable carbon cathode based perovskite solar cell was for the first time interfacial engineered with dopant free, nanorod-liked copper phthalocyanine (CuPc) to facilitate charge transportation. Both the CuPc and low temperature processed carbon are potentially noble metal-free and highly stable. By incorporating CuPc nanorods as hole-selective contact material, together with the printable low temperature processed carbon as cathode material, considerably high power conversion efficiency (PCE) of 16.1% was successfully obtained, which is comparable to or even a little higher than the device with state-of-the-art doped spiro-OMeTAD as HTM and noble metal Au as back electrode. Moreover, dramatically enhanced durability relative to doped-spiro-OMeTAD/Au based device was demonstrated by this newly developed device. Detailed excellent capability in accelerating charge extraction and suppressing charge recombination can be disclosed with steady state and time-resolved photoluminescence analysis and electrochemical impedance spectroscopy. To the best our knowledge, this is the highest efficiency that has been reported for PSCs based carbon counter electrode. The work presented here demonstrates an important step forwards to practical applications for PSCs, as it paves the way for developments of cost-effective, stable but still highly efficient PSCs, and offers the promise for a low-cost, mass-manufacturable technology that is compatible with current large-scale printing infrastructure.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 20, 108-116 p.
Keyword [en]
Carbon counter electrode, Copper phthalocyanine nanorod, Hole transport material, Perovskite solar cell
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-180937DOI: 10.1016/j.nanoen.2015.11.034ISI: 000370468300012ScopusID: 2-s2.0-84952925619OAI: oai:DiVA.org:kth-180937DiVA: diva2:897615
Note

QC 20160126. QC 20160319

Available from: 2016-01-26 Created: 2016-01-25 Last updated: 2016-03-19Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Cheng, MingSun, Licheng
By organisation
Organic Chemistry
Materials Chemistry

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 14 hits
ReferencesLink to record
Permanent link

Direct link