Ultrafast Dynamic Microscopy of Carrier and Exciton Transport

Tong Zhu; Jordan M. Snaider; Long Yuan; Libai Huang

doi:10.1146/annurev-physchem-042018-052605

Ultrafast Dynamic Microscopy of Carrier and Exciton Transport

Tong Zhu^*, Jordan M. Snaider, Long Yuan, Libai Huang

^*Corresponding author for this work

School of Mechanical Engineering

Purdue University

Research output: Contribution to journal › Review article › peer-review

94 Citations (Scopus)

Abstract

We highlight the recent progress in ultrafast dynamic microscopy that combines ultrafast optical spectroscopy with microscopy approaches, focusing on the application transient absorption microscopy (TAM) to directly image energy and charge transport in solar energy harvesting and conversion systems. We discuss the principles, instrumentation, and resolutions of TAM. The simultaneous spatial, temporal, and excited-state-specific resolutions of TAM unraveled exciton and charge transport mechanisms that were previously obscured in conventional ultrafast spectroscopy measurements for systems such as organic solar cells, hybrid perovskite thin films, and molecular aggregates. We also discuss future directions to improve resolutions and to develop other ultrafast imaging contrasts beyond transient absorption.

Original language	English
Pages (from-to)	219-244
Number of pages	26
Journal	Annual Review of Physical Chemistry
Volume	70
DOIs	https://doi.org/10.1146/annurev-physchem-042018-052605
Publication status	Published - 14 Jun 2019

Keywords

Charge mobility
Exciton diffusion
Interfacial charge transfer
Pump-probe microscopy
Solar cells
Ultrafast imaging

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10.1146/annurev-physchem-042018-052605

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title = "Ultrafast Dynamic Microscopy of Carrier and Exciton Transport",

abstract = "We highlight the recent progress in ultrafast dynamic microscopy that combines ultrafast optical spectroscopy with microscopy approaches, focusing on the application transient absorption microscopy (TAM) to directly image energy and charge transport in solar energy harvesting and conversion systems. We discuss the principles, instrumentation, and resolutions of TAM. The simultaneous spatial, temporal, and excited-state-specific resolutions of TAM unraveled exciton and charge transport mechanisms that were previously obscured in conventional ultrafast spectroscopy measurements for systems such as organic solar cells, hybrid perovskite thin films, and molecular aggregates. We also discuss future directions to improve resolutions and to develop other ultrafast imaging contrasts beyond transient absorption.",

keywords = "Charge mobility, Exciton diffusion, Interfacial charge transfer, Pump-probe microscopy, Solar cells, Ultrafast imaging",

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AU - Zhu, Tong

AU - Snaider, Jordan M.

AU - Yuan, Long

AU - Huang, Libai

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Y1 - 2019/6/14

N2 - We highlight the recent progress in ultrafast dynamic microscopy that combines ultrafast optical spectroscopy with microscopy approaches, focusing on the application transient absorption microscopy (TAM) to directly image energy and charge transport in solar energy harvesting and conversion systems. We discuss the principles, instrumentation, and resolutions of TAM. The simultaneous spatial, temporal, and excited-state-specific resolutions of TAM unraveled exciton and charge transport mechanisms that were previously obscured in conventional ultrafast spectroscopy measurements for systems such as organic solar cells, hybrid perovskite thin films, and molecular aggregates. We also discuss future directions to improve resolutions and to develop other ultrafast imaging contrasts beyond transient absorption.

AB - We highlight the recent progress in ultrafast dynamic microscopy that combines ultrafast optical spectroscopy with microscopy approaches, focusing on the application transient absorption microscopy (TAM) to directly image energy and charge transport in solar energy harvesting and conversion systems. We discuss the principles, instrumentation, and resolutions of TAM. The simultaneous spatial, temporal, and excited-state-specific resolutions of TAM unraveled exciton and charge transport mechanisms that were previously obscured in conventional ultrafast spectroscopy measurements for systems such as organic solar cells, hybrid perovskite thin films, and molecular aggregates. We also discuss future directions to improve resolutions and to develop other ultrafast imaging contrasts beyond transient absorption.

KW - Charge mobility

KW - Exciton diffusion

KW - Interfacial charge transfer

KW - Pump-probe microscopy

KW - Solar cells

KW - Ultrafast imaging

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DO - 10.1146/annurev-physchem-042018-052605

M3 - Review article

C2 - 30883273

AN - SCOPUS:85067177452

SN - 0066-426X

VL - 70

SP - 219

EP - 244

JO - Annual Review of Physical Chemistry

JF - Annual Review of Physical Chemistry

ER -

Ultrafast Dynamic Microscopy of Carrier and Exciton Transport

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Keywords

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