journal article·2019-07

Rationalizing the Molecular Design of Hole‐Selective Contacts to Improve Charge Extraction in Perovskite Solar Cells

Qiong Wang, Edoardo Mosconi, Christian Wolff, Junming Li, Dieter Neher, Filippo De Angelis, Gian Paolo Suranna, Roberto Grisorio, Antonio Abate

Advanced Energy Materials· Volume 9· Issue 28
Publisher page

Abstract

Abstract Two new hole selective materials (HSMs) based on dangling methylsulfanyl groups connected to the C‐9 position of the fluorene core are synthesized and applied in perovskite solar cells. Being structurally similar to a half of Spiro‐OMeTAD molecule, these HSMs (referred as FS and DFS) share similar redox potentials but are endowed with slightly higher hole mobility, due to the planarity and large extension of their structure. Competitive power conversion efficiency (up to 18.6%) is achieved by using the new HSMs in suitable perovskite solar cells. Time‐resolved photoluminescence decay measurements and electrochemical impedance spectroscopy show more efficient charge extraction at the HSM/perovskite interface with respect to Spiro‐OMeTAD, which is reflected in higher photocurrents exhibited by DFS/FS‐integrated perovskite solar cells. Density functional theory simulations reveal that the interactions of methylammonium with methylsulfanyl groups in DFS/FS strengthen their electrostatic attraction with the perovskite surface, providing an additional path for hole extraction compared to the sole presence of methoxy groups in Spiro‐OMeTAD. Importantly, the low‐cost synthesis of FS makes it significantly attractive for the future commercialization of perovskite solar cells.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Light-Emitting Diodes Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Helmholtz‐Zentrum Berlin für Materialien und Energie Kekuléstraße 5 12489 Berlin Germany

Computational Laboratory for Hybrid/Organic Photovoltaic Istituto CNR di Scienze e Tecnologie Molecolari (ISTM‐CNR) Via Elce di Sotto 8 06123 Perugia Italy

Institute for Physics and Astronomy University of Potsdam Karl‐Liebknecht‐Straße 24−25 14476 Potsdam‐Golm Germany

D3‐CompuNet Istituto Italiano di Tecnologia Via Morego 30 16163 Genova Italy

Department of Chemistry Biology and Biotechnology University of Perugia Via Elce di Sotto 8 06123 Perugia Italy

Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh) Politecnico di Bari Via Orabona 4 70125 Bari Italy

CNR‐NANOTEC Istituto di Nanotecnologia c/o Campus Ecotekne Università del Salento Via Monteroni 73100 Lecce Italy

Department of Chemical Materials and Production Engineering University of Naples Federioco II Piazzale Tecchio 80 80125 Fuorigrotta Italy

State Key Laboratory of Photocatalysis on Energy and Environment Institute of Advanced Energy Materials Fuzhou University Fuzhou Fujian 350002 China

Funding

Österreichische Forschungsförderungsgesellschaft · National Natural Science Foundation of China

References (64)

Show source-provided references
1. 10.1002/anie.20170322610.1002/anie.201703226 ↗
2. 10.1038/nphoton.2014.28410.1038/nphoton.2014.284 ↗
3. 10.1021/acs.jpclett.8b0183010.1021/acs.jpclett.8b01830 ↗
4. 10.1039/C6EE00030D10.1039/C6EE00030D ↗
5. Wang Q. · Energy Environ. Sci. · 2019 · 12 · 856
6. 10.1126/science.aat823510.1126/science.aat8235 ↗
7. 10.1021/acsenergylett.8b0121210.1021/acsenergylett.8b01212 ↗
8. 10.1039/C8EE00124C10.1039/C8EE00124C ↗
9. 10.1002/advs.20170018310.1002/advs.201700183 ↗
10. 10.1021/acs.chemmater.8b0013610.1021/acs.chemmater.8b00136 ↗
11. 10.1126/science.aat358310.1126/science.aat3583 ↗
12. 10.1039/C5EE03874J10.1039/C5EE03874J ↗
13. 10.1126/science.aah555710.1126/science.aah5557 ↗
14. 10.1021/acs.chemmater.8b0067610.1021/acs.chemmater.8b00676 ↗
15. 10.1039/C7EE02901B10.1039/C7EE02901B ↗
16. 10.1039/C7EE00421D10.1039/C7EE00421D ↗
17. 10.1126/science.aai908110.1126/science.aai9081 ↗
18. 10.1021/jz501127k10.1021/jz501127k ↗
19. 10.1039/C4EE01589D10.1039/C4EE01589D ↗
20. 10.1002/adfm.20180709410.1002/adfm.201807094 ↗
21. 10.1002/adfm.20150424510.1002/adfm.201504245 ↗
22. 10.1002/adma.20160655510.1002/adma.201606555 ↗
23. 10.1002/aenm.20170300710.1002/aenm.201703007 ↗
24. 10.1002/aenm.20170068310.1002/aenm.201700683 ↗
25. 10.1002/adfm.20180375310.1002/adfm.201803753 ↗
26. 10.1002/ajoc.20180039810.1002/ajoc.201800398 ↗
27. 10.1039/C5EE02014J10.1039/C5EE02014J ↗
28. 10.1038/s41560-018-0200-610.1038/s41560-018-0200-6 ↗
29. 10.1021/acs.accounts.5b0044010.1021/acs.accounts.5b00440 ↗
30. 10.1021/jacs.8b1103510.1021/jacs.8b11035 ↗
31. 10.1039/C8NR08011A10.1039/C8NR08011A ↗
32. 10.1021/nn503647610.1021/nn5036476 ↗
33. 10.1038/nenergy.2015.1710.1038/nenergy.2015.17 ↗
34. 10.1002/anie.20180639210.1002/anie.201806392 ↗
35. 10.1021/acsenergylett.7b0005410.1021/acsenergylett.7b00054 ↗
36. 10.1039/C6SC00973E10.1039/C6SC00973E ↗
37. 10.1021/acssuschemeng.5b0010810.1021/acssuschemeng.5b00108 ↗
38. 10.1021/ma201500310.1021/ma2015003 ↗
39. 10.1021/jp806879c10.1021/jp806879c ↗
40. 10.1002/aenm.20160115610.1002/aenm.201601156 ↗
41. 10.1063/1.152586610.1063/1.1525866 ↗
42. 10.1039/C6EE02390H10.1039/C6EE02390H ↗
43. 10.1088/1361-6463/aa7cb010.1088/1361-6463/aa7cb0 ↗
44. 10.1039/C7CP03760K10.1039/C7CP03760K ↗
45. 10.1063/1.494404410.1063/1.4944044 ↗
46. 10.1103/PhysRevApplied.2.03400710.1103/PhysRevApplied.2.034007 ↗
47. 10.1021/acs.jpclett.5b0136110.1021/acs.jpclett.5b01361 ↗
48. 10.1021/acs.accounts.5b0041110.1021/acs.accounts.5b00411 ↗
49. 10.1038/ncomms1394110.1038/ncomms13941 ↗
50. 10.1021/acs.jpcc.7b1150310.1021/acs.jpcc.7b11503 ↗
51. 10.1002/adma.20130517210.1002/adma.201305172 ↗
52. 10.1021/ja506624n10.1021/ja506624n ↗
53. 10.1073/pnas.170442111410.1073/pnas.1704421114 ↗
54. 10.1021/acs.jpclett.6b0026910.1021/acs.jpclett.6b00269 ↗
55. 10.1038/s41560-018-0219-810.1038/s41560-018-0219-8 ↗
56. 10.1002/adma.20170015910.1002/adma.201700159 ↗
57. 10.1021/acs.jpcc.6b0172810.1021/acs.jpcc.6b01728 ↗
58. 10.1021/acs.jpclett.5b0281010.1021/acs.jpclett.5b02810 ↗
59. 10.1021/acs.jpclett.6b0219310.1021/acs.jpclett.6b02193 ↗
60. 10.1021/acs.jpclett.7b0284810.1021/acs.jpclett.7b02848 ↗
61. 10.1021/acs.jpcc.8b0103310.1021/acs.jpcc.8b01033 ↗
62. 10.1039/C8CP00008E10.1039/C8CP00008E ↗
63. 10.1021/acsnano.6b0261310.1021/acsnano.6b02613 ↗
64. 10.1021/jp510595s10.1021/jp510595s ↗