Polaron Protected Long-Lived Hot Carriers in Mixed Cation and Anion Perovskite Nanocrystals

Megha Shrivastava; Abhijit Hazarika; Matthew Beard; K. Adarsh

doi:10.1364/CLEO_AT.2020.JTu2B.1

Polaron Protected Long-Lived Hot Carriers in Mixed Cation and Anion Perovskite Nanocrystals

Megha Shrivastava, Abhijit Hazarika, Matthew Beard, K. Adarsh

Chemistry and Nanoscience

Research output: Contribution to conference › Paper › peer-review

1 Scopus Citations

Abstract

We demonstrate protection of hot-carriers at nanosecond timescales via polaron formation in mixed cation and anion perovskite nanocrystals using ultrafast spectroscopy. The effective carrier protection precedes perovskite photovoltaic devices with efficiencies exceeding Shockley-Quisser limit.

Original language	American English
Number of pages	2
DOIs	https://doi.org/10.1364/CLEO_AT.2020.JTu2B.1 https://doi.org/10.1364/CLEO_AT.2020.JTu2B.1
State	Published - 2020
Event	CLEO: Applications and Technology, CLEO_AT 2020 - Washington, United States Duration: 10 May 2020 → 15 May 2020

Conference

Conference	CLEO: Applications and Technology, CLEO_AT 2020
Country/Territory	United States
City	Washington
Period	10/05/20 → 15/05/20

Bibliographical note

Publisher Copyright:
© OSA 2020 © 2020 The Author(s).

NREL Publication Number

NREL/CP-5900-78073

Other Report Number

Paper No. JTu2B.1

Keywords

hot carriers
nanocrystals
polarons
positive ions

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

Cite this

@conference{ac0d0c0c173b43289b4144c35ac4d334,

title = "Polaron Protected Long-Lived Hot Carriers in Mixed Cation and Anion Perovskite Nanocrystals",

abstract = "We demonstrate protection of hot-carriers at nanosecond timescales via polaron formation in mixed cation and anion perovskite nanocrystals using ultrafast spectroscopy. The effective carrier protection precedes perovskite photovoltaic devices with efficiencies exceeding Shockley-Quisser limit.",

keywords = "hot carriers, nanocrystals, polarons, positive ions",

author = "Megha Shrivastava and Abhijit Hazarika and Matthew Beard and K. Adarsh",

note = "Publisher Copyright: {\textcopyright} OSA 2020 {\textcopyright} 2020 The Author(s).; CLEO: Applications and Technology, CLEO_AT 2020 ; Conference date: 10-05-2020 Through 15-05-2020",

year = "2020",

doi = "10.1364/CLEO_AT.2020.JTu2B.1",

language = "American English",

}

TY - CONF

T1 - Polaron Protected Long-Lived Hot Carriers in Mixed Cation and Anion Perovskite Nanocrystals

AU - Shrivastava, Megha

AU - Hazarika, Abhijit

AU - Beard, Matthew

AU - Adarsh, K.

PY - 2020

Y1 - 2020

N2 - We demonstrate protection of hot-carriers at nanosecond timescales via polaron formation in mixed cation and anion perovskite nanocrystals using ultrafast spectroscopy. The effective carrier protection precedes perovskite photovoltaic devices with efficiencies exceeding Shockley-Quisser limit.

AB - We demonstrate protection of hot-carriers at nanosecond timescales via polaron formation in mixed cation and anion perovskite nanocrystals using ultrafast spectroscopy. The effective carrier protection precedes perovskite photovoltaic devices with efficiencies exceeding Shockley-Quisser limit.

KW - hot carriers

KW - nanocrystals

KW - polarons

KW - positive ions

UR - http://www.scopus.com/inward/record.url?scp=85095132216&partnerID=8YFLogxK

U2 - 10.1364/CLEO_AT.2020.JTu2B.1

DO - 10.1364/CLEO_AT.2020.JTu2B.1

M3 - Paper

AN - SCOPUS:85095132216

T2 - CLEO: Applications and Technology, CLEO_AT 2020

Y2 - 10 May 2020 through 15 May 2020

ER -

Polaron Protected Long-Lived Hot Carriers in Mixed Cation and Anion Perovskite Nanocrystals

Abstract

Conference

Bibliographical note

NREL Publication Number

Other Report Number

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this