Tuning the Optical and Structural Properties of Halide Perovskite by PbS Quantum Dot Additive Engineering for Enhanced Photovoltaic Performances

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F24%3APU151599" target="_blank" >RIV/00216305:26620/24:PU151599 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216275:25310/24:39921848

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1002/solr.202300892" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/solr.202300892</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/solr.202300892" target="_blank" >10.1002/solr.202300892</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tuning the Optical and Structural Properties of Halide Perovskite by PbS Quantum Dot Additive Engineering for Enhanced Photovoltaic Performances

Popis výsledku v původním jazyce

The combination of inorganic PbS quantum dots (QDs) and lead halide perovskite in one nanocomposite is considered as a promising approach to overcoming the limitations of metastable perovskites. However, to date, only a few examples of improved optoelectronic perovskites are realized with such materials. One of the keys to unraveling the full potential offered by the PbS QDs/perovskite material is the ability to purposefully modulate the interfacial electronic energy levels by changing the PbS QDs capping shell. Herein, this approach to adjust the offsets of the energy levels of the perovskite is demonstrated. To prepare the perovskite films with embedded PbS QDs, the organic capping of QDs is exchanged by a halide perovskite shell. Film properties are correlated to the structural changes of the soft perovskite matrix and their optical properties. Interestingly, this approach can be used to adjust the energy levels in the whole nanocomposite film, without changing the original bandgap, and thus paves the way for novel functional materials for optoelectronic devices. The applicability of this method is exemplified by fabricating solar cells with the perovskite nanocomposite, observing that the introduction of PbS/FAPI QDs into FAPI matrix boosts the average performance from 17.9% to 18.9% (21.3% champion device). The study has demonstrated the impact of shell on the PbS quantum dot and subsequent structural and optoelectronic properties of FAPbI3 and MAPbI3 perovskite. It has been highlighted how the FAPbI3 shell is needed to obtain the favourable energy alignment and high efficiency solar cells. This work opens the door to the property tuning by the use of tailored shells.image (c) 2024 WILEY-VCH GmbH

Název v anglickém jazyce

Tuning the Optical and Structural Properties of Halide Perovskite by PbS Quantum Dot Additive Engineering for Enhanced Photovoltaic Performances

Popis výsledku anglicky

The combination of inorganic PbS quantum dots (QDs) and lead halide perovskite in one nanocomposite is considered as a promising approach to overcoming the limitations of metastable perovskites. However, to date, only a few examples of improved optoelectronic perovskites are realized with such materials. One of the keys to unraveling the full potential offered by the PbS QDs/perovskite material is the ability to purposefully modulate the interfacial electronic energy levels by changing the PbS QDs capping shell. Herein, this approach to adjust the offsets of the energy levels of the perovskite is demonstrated. To prepare the perovskite films with embedded PbS QDs, the organic capping of QDs is exchanged by a halide perovskite shell. Film properties are correlated to the structural changes of the soft perovskite matrix and their optical properties. Interestingly, this approach can be used to adjust the energy levels in the whole nanocomposite film, without changing the original bandgap, and thus paves the way for novel functional materials for optoelectronic devices. The applicability of this method is exemplified by fabricating solar cells with the perovskite nanocomposite, observing that the introduction of PbS/FAPI QDs into FAPI matrix boosts the average performance from 17.9% to 18.9% (21.3% champion device). The study has demonstrated the impact of shell on the PbS quantum dot and subsequent structural and optoelectronic properties of FAPbI3 and MAPbI3 perovskite. It has been highlighted how the FAPbI3 shell is needed to obtain the favourable energy alignment and high efficiency solar cells. This work opens the door to the property tuning by the use of tailored shells.image (c) 2024 WILEY-VCH GmbH

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20700 - Environmental engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Solar RRL

ISSN

2367-198X

e-ISSN

—

Svazek periodika

8

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

15

Strana od-do

„“-„“

Kód UT WoS článku

001147209400001

EID výsledku v databázi Scopus

2-s2.0-85182843963