Hot-carriers in organic photovoltaics

Palas Roy

doi:10.1515/pac-2020-1001

Hot-carriers in organic photovoltaics

Palas Roy

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

36 Downloads (Pure)

Abstract

Photogenerated charge carriers in organic photovoltaics (OPVs) suffer relaxation and recombination losses. However, extracting these carriers at higher energy (‘Hot-carriers’) has been found to be effective to overcome such loss pathways and improve efficiency of OPVs. Excess energy and long delocalization length promotes hot-carrier escape from Coulombic attraction and dissociation into free charges. Here, I have reviewed the ways to generate hot-carriers and their extraction in organic backbones. In-depth understanding of their energetics and dynamics will help designing hot-carrier photovoltaics.

Original language	English
Pages (from-to)	223-230
Number of pages	8
Journal	Pure and Applied Chemistry
Volume	93
Issue number	2
Early online date	27 Jan 2021
DOIs	https://doi.org/10.1515/pac-2020-1001
Publication status	Published - 8 Mar 2021

Keywords

Charge-transfer
Diamond Jubilee Issue
delocalization
exciton
hot-carriers
organic photovoltaics
relaxation
ultrafast
Exciton
Hot-carriers
Organic photovoltaics
Delocalization
Relaxation
Ultrafast

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10.1515/pac-2020-1001Licence: CC BY-NC-ND

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title = "Hot-carriers in organic photovoltaics",

abstract = "Photogenerated charge carriers in organic photovoltaics (OPVs) suffer relaxation and recombination losses. However, extracting these carriers at higher energy ({\textquoteleft}Hot-carriers{\textquoteright}) has been found to be effective to overcome such loss pathways and improve efficiency of OPVs. Excess energy and long delocalization length promotes hot-carrier escape from Coulombic attraction and dissociation into free charges. Here, I have reviewed the ways to generate hot-carriers and their extraction in organic backbones. In-depth understanding of their energetics and dynamics will help designing hot-carrier photovoltaics.",

keywords = "Charge-transfer, Diamond Jubilee Issue, delocalization, exciton, hot-carriers, organic photovoltaics, relaxation, ultrafast, Exciton, Hot-carriers, Organic photovoltaics, Delocalization, Relaxation, Ultrafast",

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year = "2021",

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journal = "Pure and Applied Chemistry",

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AU - Roy, Palas

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N2 - Photogenerated charge carriers in organic photovoltaics (OPVs) suffer relaxation and recombination losses. However, extracting these carriers at higher energy (‘Hot-carriers’) has been found to be effective to overcome such loss pathways and improve efficiency of OPVs. Excess energy and long delocalization length promotes hot-carrier escape from Coulombic attraction and dissociation into free charges. Here, I have reviewed the ways to generate hot-carriers and their extraction in organic backbones. In-depth understanding of their energetics and dynamics will help designing hot-carrier photovoltaics.

AB - Photogenerated charge carriers in organic photovoltaics (OPVs) suffer relaxation and recombination losses. However, extracting these carriers at higher energy (‘Hot-carriers’) has been found to be effective to overcome such loss pathways and improve efficiency of OPVs. Excess energy and long delocalization length promotes hot-carrier escape from Coulombic attraction and dissociation into free charges. Here, I have reviewed the ways to generate hot-carriers and their extraction in organic backbones. In-depth understanding of their energetics and dynamics will help designing hot-carrier photovoltaics.

KW - Charge-transfer

KW - Diamond Jubilee Issue

KW - delocalization

KW - exciton

KW - hot-carriers

KW - organic photovoltaics

KW - relaxation

KW - ultrafast

KW - Exciton

KW - Hot-carriers

KW - Organic photovoltaics

KW - Delocalization

KW - Relaxation

KW - Ultrafast

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U2 - 10.1515/pac-2020-1001

DO - 10.1515/pac-2020-1001

M3 - Article

SN - 0033-4545

VL - 93

SP - 223

EP - 230

JO - Pure and Applied Chemistry

JF - Pure and Applied Chemistry

IS - 2

ER -

Hot-carriers in organic photovoltaics

Abstract

Keywords

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