Effects of nanowire size and geometry on silicon nanowire array thin film solar cells

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00489910" target="_blank" >RIV/68378271:_____/18:00489910 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1116/1.5010411" target="_blank" >http://dx.doi.org/10.1116/1.5010411</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1116/1.5010411" target="_blank" >10.1116/1.5010411</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of nanowire size and geometry on silicon nanowire array thin film solar cells

Popis výsledku v původním jazyce

We demonstrate the fabrication of Si nanowire array based solar cells consisting of c-Si cores and a-Si:H layers using a single pump-down PECVD. We investigate the influence of geometry, physical dimensions, and doping of the nanowire arrays on the solar cell performance. We show that the length and thickness of the nanowire radial NIP junction have a significant influence on the J-V characteristics and external quantum efficiency of the cells. The efficiency of cells is found to be mainly driven by the photogenerated current which is the largest when the thickness of the absorber film is approximately one half of the PIN nanowire length. Doping of the nanowires done by adding PH3 in situ in the PECVD lead to the nanowire axial and radial growth reduction at higher doping concentrations. The mechanism of light absorption, the crystallinity, and bulk and interface electrical losses for varying nanowire dimensions and amorphous layer thicknesses in the solar cells are discussed.

Název v anglickém jazyce

Effects of nanowire size and geometry on silicon nanowire array thin film solar cells

Popis výsledku anglicky

We demonstrate the fabrication of Si nanowire array based solar cells consisting of c-Si cores and a-Si:H layers using a single pump-down PECVD. We investigate the influence of geometry, physical dimensions, and doping of the nanowire arrays on the solar cell performance. We show that the length and thickness of the nanowire radial NIP junction have a significant influence on the J-V characteristics and external quantum efficiency of the cells. The efficiency of cells is found to be mainly driven by the photogenerated current which is the largest when the thickness of the absorber film is approximately one half of the PIN nanowire length. Doping of the nanowires done by adding PH3 in situ in the PECVD lead to the nanowire axial and radial growth reduction at higher doping concentrations. The mechanism of light absorption, the crystallinity, and bulk and interface electrical losses for varying nanowire dimensions and amorphous layer thicknesses in the solar cells are discussed.

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

<a href="/cs/project/GA16-12355S" target="_blank" >GA16-12355S: Křemíkové nanodrátky pro třídimenzionální nanoelektroniku</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Journal of Vacuum Science & Technology B

ISSN

1071-1023

e-ISSN

—

Svazek periodika

36

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

—

Kód UT WoS článku

000428278600017

EID výsledku v databázi Scopus

2-s2.0-85041321369