Towards quantitative interpretation of Fourier-transform photocurrent spectroscopy on thin-film solar cells

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00538302" target="_blank" >RIV/68378271:_____/20:00538302 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21230/20:00342289

Výsledek na webu

<a href="http://hdl.handle.net/11104/0316124" target="_blank" >http://hdl.handle.net/11104/0316124</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/coatings10090820" target="_blank" >10.3390/coatings10090820</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Towards quantitative interpretation of Fourier-transform photocurrent spectroscopy on thin-film solar cells

Popis výsledku v původním jazyce

The method of detecting deep defects in photovoltaic materials by Fourier-Transform Photocurrent Spectroscopy is reviewed. As new materials appear, a prediction of potentially achievable open-circuit voltage is highly desirable. From thermodynamics, a prediction can be made based on the radiative limit, neglecting non-radiative recombination and carrier transport effects. Beyond this, more accurate analysis has to be done. We analyzed a series of hydrogenated amorphous silicon solar cells of different thicknesses at different states of light soaking. Combining empirical results with optical, electrical and thermodynamic simulations, we provide a predictive model of the open-circuit voltage for a given defect density and absorber thickness. We observed that, rather than defect density or thickness, it is the total number of defects, that matters. Alternatively, including defect absorption into the thermodynamic radiative limit gives also useful upper bound to the open-circuit voltage.

Název v anglickém jazyce

Towards quantitative interpretation of Fourier-transform photocurrent spectroscopy on thin-film solar cells

Popis výsledku anglicky

The method of detecting deep defects in photovoltaic materials by Fourier-Transform Photocurrent Spectroscopy is reviewed. As new materials appear, a prediction of potentially achievable open-circuit voltage is highly desirable. From thermodynamics, a prediction can be made based on the radiative limit, neglecting non-radiative recombination and carrier transport effects. Beyond this, more accurate analysis has to be done. We analyzed a series of hydrogenated amorphous silicon solar cells of different thicknesses at different states of light soaking. Combining empirical results with optical, electrical and thermodynamic simulations, we provide a predictive model of the open-circuit voltage for a given defect density and absorber thickness. We observed that, rather than defect density or thickness, it is the total number of defects, that matters. Alternatively, including defect absorption into the thermodynamic radiative limit gives also useful upper bound to the open-circuit voltage.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Coatings

ISSN

2079-6412

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

9

Strana od-do

1-9

Kód UT WoS článku

000581477200001

EID výsledku v databázi Scopus

2-s2.0-85090788399