Synthesis of spirodithienogermole with triphenylamine units as a dopant-free hole-transporting material for perovskite solar cells

Author:

Ohshita Joji12345ORCID,Kondo Keisuke12345,Adachi Yohei12345ORCID,Song Myungkwan678910ORCID,Jin Sung-Ho1112131415ORCID

Affiliation:

1. Applied Chemistry Program

2. Graduate School of Advanced Science and Engineering

3. Hiroshima University

4. Higashi-Hiroshima 739-8527

5. Japan

6. Materials Center for Energy Convergence

7. Surface Technology Division

8. Korea, Institute of Materials Science (KIMS)

9. Gyeongnam 642-831

10. Republic of Korea

11. Department of Chemistry Education

12. Graduate Department of Chemical Materials

13. Institute for Plastic Information and Energy Materials

14. Pusan National University

15. Busan 46241

Abstract

Spiro-condensed dithienogermoles with electron-donating aromatic substituents were prepared, one of which was examined as the hole-transporting material of perovskite solar cell, providing the maximal photo-current conversion efficiency of 14.67%.

Funder

Korea Institute of Materials Science

Japan Society for the Promotion of Science

Publisher

Royal Society of Chemistry (RSC)

Subject

Materials Chemistry,General Chemistry

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