Flexible thin film solar cells on cellulose substrates with improved light management

M. Smeets, K. Wilken, K. Bittkau, H. Aguas, L. Pereira, E. Fortunato, R. Martins, V. Smirnov

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Cellulose substrates for PV applications present a fibrous surface texture that is not suitable for the uniform deposition of thin-film solar cells causing poor device performance. However, uniform thin-film deposition and efficient light management for solar cells can be achieved on cellulose substrates by transferring well-known surface textures that provide an adequate surface for thin film solar cell deposition and also, provide light scattering properties into the cellulose surface. In this work, we study the properties of crater-like textures transferred onto cellulose substrates by nanoimprint lithography and the corresponding effect on the J–V and EQE characteristics of amorphous silicon thin-film solar cells. The prototype solar cells are deposited on cellulose substrates and the results are compared with the results of such solar cells deposited on flat glass substrates. The results show that the J–V characteristics of solar cells deposited on planar as well as textured glass substrates are well reproduced. Due to the process routine, the solar cells on the cellulose substrate with nanoimprinted textures show an increase in the short circuit current density and power conversion efficiency over previous results in our laboratory.

Original languageEnglish
Article number1700070
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume214
Issue number8
DOIs
Publication statusPublished - 1 Aug 2017

Fingerprint

cellulose
Cellulose
solar cells
Solar cells
Substrates
thin films
Textures
textures
Nanoimprint lithography
Glass
Silicon solar cells
Thin film solar cells
glass
Amorphous silicon
Short circuit currents
Light scattering
short circuit currents
Conversion efficiency
craters
Current density

Keywords

  • cellulose
  • flexible solar cells
  • light management
  • nanoimprint lithography
  • substrates
  • thin films

Cite this

@article{914e174491584aee876e54de8d985b95,
title = "Flexible thin film solar cells on cellulose substrates with improved light management",
abstract = "Cellulose substrates for PV applications present a fibrous surface texture that is not suitable for the uniform deposition of thin-film solar cells causing poor device performance. However, uniform thin-film deposition and efficient light management for solar cells can be achieved on cellulose substrates by transferring well-known surface textures that provide an adequate surface for thin film solar cell deposition and also, provide light scattering properties into the cellulose surface. In this work, we study the properties of crater-like textures transferred onto cellulose substrates by nanoimprint lithography and the corresponding effect on the J–V and EQE characteristics of amorphous silicon thin-film solar cells. The prototype solar cells are deposited on cellulose substrates and the results are compared with the results of such solar cells deposited on flat glass substrates. The results show that the J–V characteristics of solar cells deposited on planar as well as textured glass substrates are well reproduced. Due to the process routine, the solar cells on the cellulose substrate with nanoimprinted textures show an increase in the short circuit current density and power conversion efficiency over previous results in our laboratory.",
keywords = "cellulose, flexible solar cells, light management, nanoimprint lithography, substrates, thin films",
author = "M. Smeets and K. Wilken and K. Bittkau and H. Aguas and L. Pereira and E. Fortunato and R. Martins and V. Smirnov",
note = "sem pdf conforme despacho. Portuguese Foundation for Science and Technology - POCI-01-0145-FEDER-007688 ; UID/CTM/50025 ; Bundesministerium fur Wirtschaft und Energie within project {"}FlexSol' (0325442D); ALTALUZ - PTDC/CTMENE/5125/2014",
year = "2017",
month = "8",
day = "1",
doi = "10.1002/pssa.201700070",
language = "English",
volume = "214",
journal = "PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE",
issn = "1862-6300",
publisher = "Wiley",
number = "8",

}

Flexible thin film solar cells on cellulose substrates with improved light management. / Smeets, M.; Wilken, K.; Bittkau, K.; Aguas, H.; Pereira, L.; Fortunato, E.; Martins, R.; Smirnov, V.

In: Physica Status Solidi (A) Applications and Materials Science, Vol. 214, No. 8, 1700070, 01.08.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Flexible thin film solar cells on cellulose substrates with improved light management

AU - Smeets, M.

AU - Wilken, K.

AU - Bittkau, K.

AU - Aguas, H.

AU - Pereira, L.

AU - Fortunato, E.

AU - Martins, R.

AU - Smirnov, V.

N1 - sem pdf conforme despacho. Portuguese Foundation for Science and Technology - POCI-01-0145-FEDER-007688 ; UID/CTM/50025 ; Bundesministerium fur Wirtschaft und Energie within project "FlexSol' (0325442D); ALTALUZ - PTDC/CTMENE/5125/2014

PY - 2017/8/1

Y1 - 2017/8/1

N2 - Cellulose substrates for PV applications present a fibrous surface texture that is not suitable for the uniform deposition of thin-film solar cells causing poor device performance. However, uniform thin-film deposition and efficient light management for solar cells can be achieved on cellulose substrates by transferring well-known surface textures that provide an adequate surface for thin film solar cell deposition and also, provide light scattering properties into the cellulose surface. In this work, we study the properties of crater-like textures transferred onto cellulose substrates by nanoimprint lithography and the corresponding effect on the J–V and EQE characteristics of amorphous silicon thin-film solar cells. The prototype solar cells are deposited on cellulose substrates and the results are compared with the results of such solar cells deposited on flat glass substrates. The results show that the J–V characteristics of solar cells deposited on planar as well as textured glass substrates are well reproduced. Due to the process routine, the solar cells on the cellulose substrate with nanoimprinted textures show an increase in the short circuit current density and power conversion efficiency over previous results in our laboratory.

AB - Cellulose substrates for PV applications present a fibrous surface texture that is not suitable for the uniform deposition of thin-film solar cells causing poor device performance. However, uniform thin-film deposition and efficient light management for solar cells can be achieved on cellulose substrates by transferring well-known surface textures that provide an adequate surface for thin film solar cell deposition and also, provide light scattering properties into the cellulose surface. In this work, we study the properties of crater-like textures transferred onto cellulose substrates by nanoimprint lithography and the corresponding effect on the J–V and EQE characteristics of amorphous silicon thin-film solar cells. The prototype solar cells are deposited on cellulose substrates and the results are compared with the results of such solar cells deposited on flat glass substrates. The results show that the J–V characteristics of solar cells deposited on planar as well as textured glass substrates are well reproduced. Due to the process routine, the solar cells on the cellulose substrate with nanoimprinted textures show an increase in the short circuit current density and power conversion efficiency over previous results in our laboratory.

KW - cellulose

KW - flexible solar cells

KW - light management

KW - nanoimprint lithography

KW - substrates

KW - thin films

UR - http://www.scopus.com/inward/record.url?scp=85026353578&partnerID=8YFLogxK

U2 - 10.1002/pssa.201700070

DO - 10.1002/pssa.201700070

M3 - Article

VL - 214

JO - PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE

JF - PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE

SN - 1862-6300

IS - 8

M1 - 1700070

ER -