Super‐Absorber, Super‐Bright, Nearly‐Non‐Blinking CsPbI3 Perovskite Nanocrystal
Source abstract
Abstract
Abstract Gigantic magnitude of molar extinction coefficient (ɛ) (≈2 × 108 m−1 cm−1) and PLQY (0.98) through Zn‐alloying and surface‐passivating ligand variation, make the CsPbI3 based perovskite nanocrystal (PNC) the most super‐absorbing and most super‐bright among quantum dot‐PNC family. Radiative rate got enhanced 9 times and non‐radiative rate decreased 13 times. Moreover, very high (detrapping rate/trapping rate) of electron and 90% peak of ON fraction make this PNC a nearly‐non‐blinking one. Ultrafast and comparatively shorter hot exciton/electron cooling time (536 fs) and hot exciton/electron trapping time (516 fs) can explain why this PNC exhibits hitherto unobserved excellent optical properties.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties · Chalcogenide Semiconductor Thin Films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur West Bengal 741246 India
Department of Physics Indian Institute of Technology Kharagpur Kharagpur West Bengal 721302 India
Centre for Advanced Functional Materials (CAFM) Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur West Bengal 741246 India
Funding
Indian Institute of Science Education and Research Kolkata
References (61)
Show source-provided references
1. 10.1126/science.aag270010.1126/science.aag2700 ↗
2. 10.1002/anie.20210481210.1002/anie.202104812 ↗
3. 10.1021/acsnano.0c0890310.1021/acsnano.0c08903 ↗
4. 10.1021/acs.jpclett.0c0038510.1021/acs.jpclett.0c00385 ↗
5. 10.1126/science.aam709310.1126/science.aam7093 ↗
6. 10.1021/acsenergylett.7b0054710.1021/acsenergylett.7b00547 ↗
7. 10.1039/D0NR08428J10.1039/D0NR08428J ↗
8. 10.1021/acs.jpclett.6b0280010.1021/acs.jpclett.6b02800 ↗
9. 10.1021/acs.jpclett.1c0232610.1021/acs.jpclett.1c02326 ↗
10. 10.1021/nl504877910.1021/nl5048779 ↗
11. 10.1039/C9NA00406H10.1039/C9NA00406H ↗
12. 10.1021/acs.jpclett.8b0106510.1021/acs.jpclett.8b01065 ↗
13. https://www.nrel.gov/grid/solar‐resource/spectra‐am1.5.html(accessed: April 2020).
14. 10.1021/acs.chemmater.0c0175010.1021/acs.chemmater.0c01750 ↗
15. 10.1021/acs.jpclett.9b0330610.1021/acs.jpclett.9b03306 ↗
16. 10.1021/acs.nanolett.8b0433910.1021/acs.nanolett.8b04339 ↗
17. 10.1021/acsenergylett.9b0078710.1021/acsenergylett.9b00787 ↗
18. 10.1002/adma.20180469110.1002/adma.201804691 ↗
19. 10.1063/1.513180710.1063/1.5131807 ↗
20. 10.1021/acsenergylett.7b0050810.1021/acsenergylett.7b00508 ↗
21. 10.1021/acsenergylett.7b0070710.1021/acsenergylett.7b00707 ↗
22. 10.1039/C9TA07143A10.1039/C9TA07143A ↗
23. 10.1021/acs.jpcc.9b0596910.1021/acs.jpcc.9b05969 ↗
24. 10.1039/D3NR00241A10.1039/D3NR00241A ↗
25. 10.1021/jacs.8b0476310.1021/jacs.8b04763 ↗
26. 10.1021/acs.chemmater.8b0298910.1021/acs.chemmater.8b02989 ↗
27. 10.1021/acs.jpclett.9b0068910.1021/acs.jpclett.9b00689 ↗
28. 10.1063/1.512330610.1063/1.5123306 ↗
29. 10.1021/jacs.7b0568310.1021/jacs.7b05683 ↗
30. 10.1021/acsenergylett.6b0033710.1021/acsenergylett.6b00337 ↗
31. 10.1021/acsnano.6b0390810.1021/acsnano.6b03908 ↗
32. 10.1021/acs.nanolett.5b0411010.1021/acs.nanolett.5b04110 ↗
33. 10.1021/jp906827m10.1021/jp906827m ↗
34. 10.1021/acs.jpclett.2c0119810.1021/acs.jpclett.2c01198 ↗
35. 10.1126/science.281.5385.201310.1126/science.281.5385.2013 ↗
36. 10.1007/s11051-010-9911-810.1007/s11051-010-9911-8 ↗
37. 10.1016/j.addr.2011.09.00110.1016/j.addr.2011.09.001 ↗
38. 10.1109/JSTQE.2017.273788210.1109/JSTQE.2017.2737882 ↗
39. 10.1021/cm303361s10.1021/cm303361s ↗
40. 10.1021/acs.jpclett.9b0115710.1021/acs.jpclett.9b01157 ↗
41. 10.1021/acs.jpcc.5b1005110.1021/acs.jpcc.5b10051 ↗
42. 10.1021/acs.jpclett.0c0351910.1021/acs.jpclett.0c03519 ↗
43. 10.1021/acs.jpcc.7b1132710.1021/acs.jpcc.7b11327 ↗
44. 10.1039/C8CP00952J10.1039/C8CP00952J ↗
45. 10.1021/acs.jpcc.9b0994710.1021/acs.jpcc.9b09947 ↗
46. 10.1021/acs.jpcc.9b0042210.1021/acs.jpcc.9b00422 ↗
47. 10.1021/acs.jpclett.2c0015710.1021/acs.jpclett.2c00157 ↗
48. 10.1039/D1CP05780D10.1039/D1CP05780D ↗
49. 10.1021/acs.jpclett.2c0337310.1021/acs.jpclett.2c03373 ↗
50. 10.1039/c1cp22040c10.1039/c1cp22040c ↗
51. 10.1016/j.chemphys.2012.02.01810.1016/j.chemphys.2012.02.018 ↗
52. 10.1021/jacs.7b0281710.1021/jacs.7b02817 ↗
53. 10.1021/acs.jpclett.1c0000810.1021/acs.jpclett.1c00008 ↗
54. 10.1002/adfm.20170640110.1002/adfm.201706401 ↗
55. 10.1103/PhysRevB.63.20531610.1103/PhysRevB.63.205316 ↗
56. 10.1002/adma.20160692310.1002/adma.201606923 ↗
57. 10.1021/acs.jpcc.0c0835810.1021/acs.jpcc.0c08358 ↗
58. 10.1063/1.510989410.1063/1.5109894 ↗
59. 10.1021/acs.jpcc.9b0390110.1021/acs.jpcc.9b03901 ↗
60. 10.1038/s41467-018-06721-010.1038/s41467-018-06721-0 ↗
61. 10.1021/acs.nanolett.5b0507710.1021/acs.nanolett.5b05077 ↗