Perovskite/Hole Transport Layer Interface Improvement by Solvent Engineering of Spiro-OMeTAD Precursor Solution
Source abstract
Abstract
Perovskite solar cells (PSCs) are one of the most promising emerging energy-conversion technologies because of their high power conversion efficiencies (PCEs) and potentially low fabrication cost. To improve PCE, it is necessary to develop PSCs with good interfacial engineering to reduce the trap states and carrier transport barriers present at the various interfaces of the PSCs' architecture. This work reports a facile method to improve the interface between the perovskite absorber layer and the hole transport layer (HTL) by adding a small amount of acetonitrile (ACN) in the Spiro-OMeTAD precursor solution. This small amount of ACN dissolves the surface of the perovskite layer, allowing the formation of an interdiffusion structure between perovskite and Spiro-OMeTAD layers. This modification allows for an improved electrical contact, enhanced collection of holes, and reduced recombination losses at the interface between the perovskite and Spiro-OMeTAD layers and, consequently, enhances the PCE. A maximum PCE of 19.7% with low hysteresis and a steady-state power conversion efficiency of 19.0% is obtained for optimized PSCs.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Chalcogenide Semiconductor Thin Films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, Sharif University of Technology, Tehran 14588, Iran
Department of Chemical Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-gu, Pohang, Kyoungbuk 37673, Korea
Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran 14588, Iran
Light Technology Institute, Karlsruhe Institute of Technology, Engesserstrasse 13, 76131 Karlsruhe, Germany
Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
Department of Nanotechnology and Advanced Materials, Materials and Energy Research Centre, Karaj 31787-316, Iran
Funding
National Research Foundation of Korea · Ministry of Science Research and Technology · Light Technology Institute, Karlsruhe Institute of Technology · Institute of Microstructure Technology, Karlsruhe Institute of Technology
References (67)
Show source-provided references
1. 10.1039/c3ee40810h10.1039/c3ee40810h ↗
2. 10.1038/nphoton.2014.13410.1038/nphoton.2014.134 ↗
3. 10.1126/science.aaa576010.1126/science.aaa5760 ↗
4. 10.1126/science.aaa533310.1126/science.aaa5333 ↗
5. 10.1039/C7EE02901B10.1039/C7EE02901B ↗
6. 10.1021/ja809598r10.1021/ja809598r ↗
7. 10.1038/nature1413310.1038/nature14133 ↗
8. 10.1126/science.aan230110.1126/science.aan2301 ↗
9. 10.1039/C5EE03874J10.1039/C5EE03874J ↗
10. 10.1039/C6TA05938D10.1039/C6TA05938D ↗
11. 10.1021/acsenergylett.7b0021210.1021/acsenergylett.7b00212 ↗
12. 10.1039/C6EE00709K10.1039/C6EE00709K ↗
13. 10.1016/j.nanoen.2017.02.01710.1016/j.nanoen.2017.02.017 ↗
14. 10.1039/C6TA06912F10.1039/C6TA06912F ↗
15. 10.1021/acsami.7b0707110.1021/acsami.7b07071 ↗
16. 10.1016/j.nanoen.2017.09.03510.1016/j.nanoen.2017.09.035 ↗
17. 10.1016/j.nanoen.2017.02.02510.1016/j.nanoen.2017.02.025 ↗
18. 10.1021/acsami.7b0222310.1021/acsami.7b02223 ↗
19. 10.1021/acs.jpclett.6b0219310.1021/acs.jpclett.6b02193 ↗
20. 10.1039/C8EE02242A10.1039/C8EE02242A ↗
21. 10.1039/C7EE01096F10.1039/C7EE01096F ↗
22. 10.1039/C8TA01192C10.1039/C8TA01192C ↗
23. 10.1021/acs.chemmater.5b0390210.1021/acs.chemmater.5b03902 ↗
24. 10.1002/aenm.20170223510.1002/aenm.201702235 ↗
25. 10.1126/sciadv.aav201210.1126/sciadv.aav2012 ↗
26. 10.1021/acsnano.8b0606210.1021/acsnano.8b06062 ↗
27. 10.1038/s41566-019-0398-210.1038/s41566-019-0398-2 ↗
28. 10.1126/science.aan230110.1126/science.aan2301 ↗
29. 10.1039/C6TA08449D10.1039/C6TA08449D ↗
30. 10.1002/admi.20170062310.1002/admi.201700623 ↗
31. 10.1021/acs.chemrev.6b0043210.1021/acs.chemrev.6b00432 ↗
32. 10.1002/adma.20160306210.1002/adma.201603062 ↗
33. 10.1021/acsami.9b0133210.1021/acsami.9b01332 ↗
34. 10.1021/acs.jpcc.6b1213710.1021/acs.jpcc.6b12137 ↗
35. 10.1039/C6EE02687G10.1039/C6EE02687G ↗
36. 10.1002/aenm.20180138610.1002/aenm.201801386 ↗
37. 10.1016/j.electacta.2018.10.03210.1016/j.electacta.2018.10.032 ↗
38. 10.1126/sciadv.aav201210.1126/sciadv.aav2012 ↗
39. 10.1039/C4TA05196C10.1039/C4TA05196C ↗
40. 10.1039/C8EE02404A10.1039/C8EE02404A ↗
41. 10.1039/C9EE01773A10.1039/C9EE01773A ↗
42. 10.1021/jacs.6b0451910.1021/jacs.6b04519 ↗
43. 10.1039/C6EE03182J10.1039/C6EE03182J ↗
44. 10.1039/C7TA03890A10.1039/C7TA03890A ↗
45. 10.1016/j.nanoen.2017.09.05010.1016/j.nanoen.2017.09.050 ↗
46. 10.1016/j.jcis.2018.07.10010.1016/j.jcis.2018.07.100 ↗
47. 10.1002/solr.20180002710.1002/solr.201800027 ↗
48. 10.1016/j.jpcs.2018.07.00510.1016/j.jpcs.2018.07.005 ↗
49. 10.1038/s41560-018-0219-810.1038/s41560-018-0219-8 ↗
50. 10.1021/acs.nanolett.8b0002510.1021/acs.nanolett.8b00025 ↗
51. 10.1002/adma.20180301910.1002/adma.201803019 ↗
52. 10.1021/acsnano.5b0044710.1021/acsnano.5b00447 ↗
53. 10.1039/C5RA18648J10.1039/C5RA18648J ↗
54. 10.1021/jacs.7b1043010.1021/jacs.7b10430 ↗
55. 10.1002/aenm.20180171710.1002/aenm.201801717 ↗
56. 10.1021/acsenergylett.8b0162710.1021/acsenergylett.8b01627 ↗
57. 10.1021/nn503647610.1021/nn5036476 ↗
58. 10.1039/C7EE01096F10.1039/C7EE01096F ↗
59. 10.1039/C5EE02155C10.1039/C5EE02155C ↗
60. 10.1021/ja512518r10.1021/ja512518r ↗
61. 10.1039/C6EE02139E10.1039/C6EE02139E ↗
62. 10.1039/C3TA13606J10.1039/C3TA13606J ↗
63. 10.1039/C7EE02415K10.1039/C7EE02415K ↗
64. 10.1021/acsomega.8b0055510.1021/acsomega.8b00555 ↗
65. 10.1039/c3ee42282h10.1039/c3ee42282h ↗
66. 10.1038/nmat401410.1038/nmat4014 ↗
67. 10.1016/j.nanoen.2017.02.01910.1016/j.nanoen.2017.02.019 ↗