Unraveling Bulk versus surface passivation effects in highly efficient p-i-n perovskite solar cells using thiophene-based cations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00586079" target="_blank" >RIV/68378271:_____/24:00586079 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0360808" target="_blank" >https://hdl.handle.net/11104/0360808</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/solr.202300681" target="_blank" >10.1002/solr.202300681</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Unraveling Bulk versus surface passivation effects in highly efficient p-i-n perovskite solar cells using thiophene-based cations

Popis výsledku v původním jazyce

Defect passivation is nowadays considered a must-have route for high-efficiency perovskite solar cells. However, a general rule that correlates the choice of passivating agents with performance enhancements is still missing. Herein, two different thiophene salts that are used as passivating agents are compared, namely thiophene methylammonium chloride and thiophene ethylammonium chloride (TEACl), which are used for the passivation of bulk and surface defects in triple-cation-based metal halide perovskites. First, it is observed that the surface passivation method leads to better device performances reaching a power conversion efficiency of 23.56%, with reduced voltage losses and increased fill factor when compared with the reference. Second, it is demonstrated that the chemical structure of the cation dictates its capability either in passivating bulk defects effectively or to form a superficial two-dimensional/three-dimensional heterostructure, which happens only for the TEACl case. The chemical composition and the cation dimension are responsible for device performance enhancement as observed by a joint spectroscopic and density functional theory simulations study, providing rational guidelines for further smart device design.

Název v anglickém jazyce

Unraveling Bulk versus surface passivation effects in highly efficient p-i-n perovskite solar cells using thiophene-based cations

Popis výsledku anglicky

Defect passivation is nowadays considered a must-have route for high-efficiency perovskite solar cells. However, a general rule that correlates the choice of passivating agents with performance enhancements is still missing. Herein, two different thiophene salts that are used as passivating agents are compared, namely thiophene methylammonium chloride and thiophene ethylammonium chloride (TEACl), which are used for the passivation of bulk and surface defects in triple-cation-based metal halide perovskites. First, it is observed that the surface passivation method leads to better device performances reaching a power conversion efficiency of 23.56%, with reduced voltage losses and increased fill factor when compared with the reference. Second, it is demonstrated that the chemical structure of the cation dictates its capability either in passivating bulk defects effectively or to form a superficial two-dimensional/three-dimensional heterostructure, which happens only for the TEACl case. The chemical composition and the cation dimension are responsible for device performance enhancement as observed by a joint spectroscopic and density functional theory simulations study, providing rational guidelines for further smart device design.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

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

2367-198X

Svazek periodika

8

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

2300681

Kód UT WoS článku

001193887700001

EID výsledku v databázi Scopus

2-s2.0-85188878744