期刊
SOLAR RRL
卷 5, 期 3, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/solr.202000625
关键词
conductive polymers; hole transport materials; organic solar cells; PEDOT:PSS; polyaniline
资金
- Natural Science Foundation of China [51973063]
- Tip-top Scientific and Technical Innovative Youth Talents of Guangdong Special Support Program [2019TQ05C890]
- Pearl River S&T Nova Program of Guangzhou [201710010194]
- National Key Research and Development Program of China - MOST [2019YFA0705900]
- Basic and Applied Basic Research Major Program of Guangdong Province [2019B030302007]
- Pearl River Nova Program of Guangzhou [201906010074]
The authors designed and prepared a new self-doped water-soluble polyaniline derivative, PDAS, and applied it as a hole extraction layer in nonfullerene organic solar cells. PDAS exhibits high conductivity, neutrality, and enhanced work function, with the devices' power conversion efficiency comparable to those using PEDOT:PSS as the hole extraction layer.
Among the various conducting polymers, polyaniline (PANI) has received a great deal of attention due to its low cost, excellent chemical and thermal stabilities, and high electrical conductivity. Herein, a newly designed self-doped water-soluble PANI derivatives-poly (diphenylamine-4-sulfonic acid) (PDAS) is readily prepared and applied as hole extract layer in nonfullerene organic solar cells. PDAS, with satisfactory structural and electrical homogeneity, exhibits high conductivity of 7.75 x 10(-2) S cm(-1), none of acidity (with pH around 7), as well as enhanced work function of 5.43 eV, compared with the well-known poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). The power conversion efficiency of PDAS-based devices is comparable with that of PEDOT:PSS-based devices with the PM6:BTP-4F-12 as active layer. The successful design of the new self-doped water-soluble conductive polymer and its commercial application potential is demonstrated.
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