Molecular monolayers for electrical passivation and functionalization of silicon-based solar energy devices

Janneke Veerbeek, Nienke J. Firet, Wouter Vijselaar, R. Elbersen, Han Gardeniers, Jurriaan Huskens

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)

Abstract

Silicon-based solar fuel devices require passivation for optimal performance yet at the same time need functionalization with (photo)catalysts for efficient solar fuel production. Here, we use molecular monolayers to enable electrical passivation and simultaneous functionalization of silicon-based solar cells. Organic monolayers were coupled to silicon surfaces by hydrosilylation in order to avoid an insulating silicon oxide layer at the surface. Monolayers of 1-tetradecyne were shown to passivate silicon micropillar-based solar cells with radial junctions, by which the efficiency increased from 8.7% to 9.9% for n+/p junctions and from 7.8% to 8.8% for p+/n junctions. This electrical passivation of the surface, most likely by removal of dangling bonds, is reflected in a higher shunt resistance in the J-V measurements. Monolayers of 1,8-nonadiyne were still reactive for click chemistry with a model catalyst, thus enabling simultaneous passivation and future catalyst coupling.

Original languageEnglish
Pages (from-to)413-421
Number of pages9
JournalACS applied materials & interfaces
Volume9
Issue number1
DOIs
Publication statusPublished - 11 Jan 2017

Fingerprint

Silicon
Passivation
Solar energy
Monolayers
Catalysts
Solar cells
Hydrosilylation
Dangling bonds
Silicon oxides

Keywords

  • Electrical passivation
  • Hydrosilylation
  • Organic monolayers
  • Shunt resistance
  • Silicon solar cells

Cite this

@article{2d78713b14ab4c9dadb72b614b22f77d,
title = "Molecular monolayers for electrical passivation and functionalization of silicon-based solar energy devices",
abstract = "Silicon-based solar fuel devices require passivation for optimal performance yet at the same time need functionalization with (photo)catalysts for efficient solar fuel production. Here, we use molecular monolayers to enable electrical passivation and simultaneous functionalization of silicon-based solar cells. Organic monolayers were coupled to silicon surfaces by hydrosilylation in order to avoid an insulating silicon oxide layer at the surface. Monolayers of 1-tetradecyne were shown to passivate silicon micropillar-based solar cells with radial junctions, by which the efficiency increased from 8.7{\%} to 9.9{\%} for n+/p junctions and from 7.8{\%} to 8.8{\%} for p+/n junctions. This electrical passivation of the surface, most likely by removal of dangling bonds, is reflected in a higher shunt resistance in the J-V measurements. Monolayers of 1,8-nonadiyne were still reactive for click chemistry with a model catalyst, thus enabling simultaneous passivation and future catalyst coupling.",
keywords = "Electrical passivation, Hydrosilylation, Organic monolayers, Shunt resistance, Silicon solar cells",
author = "Janneke Veerbeek and Firet, {Nienke J.} and Wouter Vijselaar and R. Elbersen and Han Gardeniers and Jurriaan Huskens",
year = "2017",
month = "1",
day = "11",
doi = "10.1021/acsami.6b12997",
language = "English",
volume = "9",
pages = "413--421",
journal = "ACS applied materials & interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "1",

}

Molecular monolayers for electrical passivation and functionalization of silicon-based solar energy devices. / Veerbeek, Janneke; Firet, Nienke J.; Vijselaar, Wouter; Elbersen, R.; Gardeniers, Han; Huskens, Jurriaan.

In: ACS applied materials & interfaces, Vol. 9, No. 1, 11.01.2017, p. 413-421.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Molecular monolayers for electrical passivation and functionalization of silicon-based solar energy devices

AU - Veerbeek, Janneke

AU - Firet, Nienke J.

AU - Vijselaar, Wouter

AU - Elbersen, R.

AU - Gardeniers, Han

AU - Huskens, Jurriaan

PY - 2017/1/11

Y1 - 2017/1/11

N2 - Silicon-based solar fuel devices require passivation for optimal performance yet at the same time need functionalization with (photo)catalysts for efficient solar fuel production. Here, we use molecular monolayers to enable electrical passivation and simultaneous functionalization of silicon-based solar cells. Organic monolayers were coupled to silicon surfaces by hydrosilylation in order to avoid an insulating silicon oxide layer at the surface. Monolayers of 1-tetradecyne were shown to passivate silicon micropillar-based solar cells with radial junctions, by which the efficiency increased from 8.7% to 9.9% for n+/p junctions and from 7.8% to 8.8% for p+/n junctions. This electrical passivation of the surface, most likely by removal of dangling bonds, is reflected in a higher shunt resistance in the J-V measurements. Monolayers of 1,8-nonadiyne were still reactive for click chemistry with a model catalyst, thus enabling simultaneous passivation and future catalyst coupling.

AB - Silicon-based solar fuel devices require passivation for optimal performance yet at the same time need functionalization with (photo)catalysts for efficient solar fuel production. Here, we use molecular monolayers to enable electrical passivation and simultaneous functionalization of silicon-based solar cells. Organic monolayers were coupled to silicon surfaces by hydrosilylation in order to avoid an insulating silicon oxide layer at the surface. Monolayers of 1-tetradecyne were shown to passivate silicon micropillar-based solar cells with radial junctions, by which the efficiency increased from 8.7% to 9.9% for n+/p junctions and from 7.8% to 8.8% for p+/n junctions. This electrical passivation of the surface, most likely by removal of dangling bonds, is reflected in a higher shunt resistance in the J-V measurements. Monolayers of 1,8-nonadiyne were still reactive for click chemistry with a model catalyst, thus enabling simultaneous passivation and future catalyst coupling.

KW - Electrical passivation

KW - Hydrosilylation

KW - Organic monolayers

KW - Shunt resistance

KW - Silicon solar cells

UR - http://www.scopus.com/inward/record.url?scp=85016308270&partnerID=8YFLogxK

U2 - 10.1021/acsami.6b12997

DO - 10.1021/acsami.6b12997

M3 - Article

VL - 9

SP - 413

EP - 421

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

SN - 1944-8244

IS - 1

ER -