Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Application of benzodithiophene based A-D-A structured materials in efficient perovskite solar cells and organic solar cells
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry.
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry.ORCID iD: 0000-0001-5069-3245
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry.ORCID iD: 0000-0001-5115-4593
Show others and affiliations
2016 (English)In: Nano Energy, ISSN 2211-2855, Vol. 23, 40-49 p.Article in journal (Refereed) Published
Resource type
Text
Abstract [en]

In this work, we have designed and synthesized a novel molecular material, BDT-C1, in which the core unit, benzodithiophene (BDT), was functionalized by thiophene (TP) and benzo-[c][1,2,5]-thiadiazole (BTZ) derivatives to generate extended pi-conjugation. BDT-C1 shows high hole mobility and high conductivity in its pristine form, in combination with appropriate energy level alignment with respect to [CH3NH3]PbI3 and PC70BM, qualifying the material as a good candidate for application both in perovskite solar cells (PSCs) as dopant-free hole transport material (HTM) and in OSCs as donor material. The champion PSCs based on BDT-C1 show an average conversion efficiency (PCE) of 13.4% (scan forward: 13.9%; scan backward: PCE=12.9%, scan rate: 10 mV/s). Although the average efficiency obtained is slightly lower than that of reference devices based on the well-known doped HTM Spiro-OMeTAD (13.7%), the BDT-C1 based devices exhibit better stability. Moreover, BDT-C1 as a donor material in OSCs also shows good performance in combination with PC70BM as acceptor material, and an efficiency of 6.1% was obtained. The present results demonstrate that BDT-C1 works well as both donor material in OSCs as well as dopant-free HTMs for efficient PSCs.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 23, 40-49 p.
Keyword [en]
Perovskite solar cells, Dopant-free, Hole transport material, Organic solar cells, Donor material
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-187795DOI: 10.1016/j.nanoen.2016.03.007ISI: 000375045900006Scopus ID: 2-s2.0-84961135334OAI: oai:DiVA.org:kth-187795DiVA: diva2:932059
Funder
Swedish Energy AgencySwedish Research CouncilKnut and Alice Wallenberg Foundation
Note

QC 20160531

Available from: 2016-05-31 Created: 2016-05-30 Last updated: 2017-08-15Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Chen, ChengCheng, MingLiu, PengGao, JiajiaKloo, LarsSun, Licheng
By organisation
Applied Physical ChemistryOrganic ChemistryZhejiang-KTH Joint Research Center of Photonics, JORCEP
Chemical Sciences

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 94 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf