Postsynthesis Mn-doping in CsPbI3 nanocrystals to stabilize the black perovskite phase

Nanoscale
Wasim J MirAngshuman Nag

Abstract

Long term stability of the black perovskite phase of CsPbI3 nanocrystals under ambient conditions is an important challenge for their optoelectronic applications in real life. The nanocrystalline size is found to improve the stability of the black phase at room temperature. Furthermore, doping Mn is proposed to improve the stability of the black perovskite phase of CsPbI3 nanocrystals (NCs). However, the undoped and Mn-doped CsPbI3 NCs are prepared in different batches under somewhat different synthesis conditions thus obliterating the role of Mn in the stability of the black phase of CsPbI3 NCs. Here, we elucidate the effect of Mn doping on the surface and lattice energy of CsPbI3 NCs, stabilizing the black phase. For this purpose, we employ a postsynthesis doping strategy which has an advantage that the initial host remains the same for both undoped and Mn-doped samples. Uncertainties in the size/shape, surface energy, and structure through direct synthesis of undoped and Mn-doped NCs in different batches can be neglected in our postsynthesis doping strategy, allowing us to study the effect of dopants in a more controlled manner. Our postsynthesis Mn-doping in CsPbI3 NCs shows that the black phase stability under ambient cond...Continue Reading

References

Nov 8, 2015·Angewandte Chemie·Abhishek SwarnkarAngshuman Nag
Dec 25, 2015·The Journal of Physical Chemistry Letters·Michael KulbakDavid Cahen
May 3, 2016·Nano Letters·Subham DastidarAaron T Fafarman
Oct 21, 2016·Journal of the American Chemical Society·Wenyong LiuVictor I Klimov
Dec 13, 2016·Nanoscale·Leyre GomezTom Gregorkiewicz
Dec 20, 2016·ACS Applied Materials & Interfaces·Shilpa N RajaA Paul Alivisatos
Aug 2, 2017·Journal of the American Chemical Society·Shenghan ZouXueyuan Chen
Nov 2, 2017·Journal of the American Chemical Society·Feng LiuQing Shen
Aug 29, 2018·Journal of the American Chemical Society·Boya ZhaoJin-Song Hu
Sep 25, 2018·Journal of the American Chemical Society·Yong WangYixin Zhao

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Citations

May 1, 2019·Nanoscale·Lakshminarayana PolavarapuRoman Krahne
Jun 22, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Lazaros TheofylaktosThomas Stergiopoulos
Nov 27, 2019·Small·Zhentao DuXiaosheng Fang
Oct 3, 2019·The Journal of Chemical Physics·David ParobekDong Hee Son
Jan 17, 2020·The Journal of Chemical Physics·Ghada H AhmedOmar F Mohammed
Oct 17, 2019·Physical Chemistry Chemical Physics : PCCP·Junpeng AnFuling Tang
Dec 17, 2020·Physical Chemistry Chemical Physics : PCCP·Rayan Chakraborty, Angshuman Nag
Apr 1, 2021·The Journal of Physical Chemistry Letters·YuJia GuoJingjing Chang
May 14, 2021·Angewandte Chemie·Ya-Kun WangEdward H Sargent
Jun 18, 2021·ACS Nano·Amrita DeyLakshminarayana Polavarapu
Jul 2, 2021·Journal of the American Chemical Society·Julian A SteeleMaarten B J Roeffaers
Dec 4, 2019·The Journal of Physical Chemistry Letters·Rakesh Kumar BeheraNarayan Pradhan
Mar 20, 2020·The Journal of Physical Chemistry Letters·Rebecca B WaiNaomi S Ginsberg
Jul 2, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Chun Kiu NgJacek J Jasieniak
Nov 10, 2021·The Journal of Physical Chemistry Letters·Qiuhong ChenJialong Zhao

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Methods Mentioned

BETA
X-ray
atomic emission spectroscopy

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