TiO2-PHT interface influence to charge carrier photo generation and recombination

G. Sliauzys; G. Juska; K. Genevicius; Jan-Henrik Smått; M. Lindén; Ronald Österbacka

doi:10.1117/12.815634

TiO2-PHT interface influence to charge carrier photo generation and recombination

G. Sliauzys, G. Juska, K. Genevicius, Jan-Henrik Smått, M. Lindén, Ronald Österbacka

Forskningsoutput: Tidskriftsbidrag › Artikel › Vetenskaplig › Peer review

Sammanfattning

In this paper the influence of TiO2/polymer (RR-P3HT) interface to photo generated charge carriers separation and recombination have been studied. The quantum efficiency and charge carrier recombination were studied in heterojunctions of TiO2 (prepared with porous or flat interface) and spin coated RR-P3HT polymer film using time of flight (TOF) and double injection (DoI) transient methods. From the shape of the TOF transients it was determined that the charge carrier generation is taking place in the vicinity of the TiO2/P3HT interface. Samples with porous TiO2 films show better charge carrier separation, but the deep trapping of charge carriers at the interface appear. The charge carrier recombination is trimolecular (Auger type recombination) with the similar values of recombination coefficients in both types of samples.

Originalspråk	Odefinierat/okänt
Sidor (från-till)	–
Antal sidor	6
Tidskrift	Proceedings of SPIE
Volym	7142
DOI	https://doi.org/10.1117/12.815634
Status	Publicerad - 2008
MoE-publikationstyp	A1 Tidskriftsartikel-refererad

Nyckelord

charge carrier generation and recombination
photovoltaics

Åtkomst av dokument

10.1117/12.815634

Citera det här

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title = "TiO2-PHT interface influence to charge carrier photo generation and recombination",

abstract = "In this paper the influence of TiO2/polymer (RR-P3HT) interface to photo generated charge carriers separation and recombination have been studied. The quantum efficiency and charge carrier recombination were studied in heterojunctions of TiO2 (prepared with porous or flat interface) and spin coated RR-P3HT polymer film using time of flight (TOF) and double injection (DoI) transient methods. From the shape of the TOF transients it was determined that the charge carrier generation is taking place in the vicinity of the TiO2/P3HT interface. Samples with porous TiO2 films show better charge carrier separation, but the deep trapping of charge carriers at the interface appear. The charge carrier recombination is trimolecular (Auger type recombination) with the similar values of recombination coefficients in both types of samples.",

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T1 - TiO2-PHT interface influence to charge carrier photo generation and recombination

AU - Sliauzys, G.

AU - Juska, G.

AU - Genevicius, K.

AU - Smått, Jan-Henrik

AU - Lindén, M.

AU - Österbacka, Ronald

PY - 2008

Y1 - 2008

N2 - In this paper the influence of TiO2/polymer (RR-P3HT) interface to photo generated charge carriers separation and recombination have been studied. The quantum efficiency and charge carrier recombination were studied in heterojunctions of TiO2 (prepared with porous or flat interface) and spin coated RR-P3HT polymer film using time of flight (TOF) and double injection (DoI) transient methods. From the shape of the TOF transients it was determined that the charge carrier generation is taking place in the vicinity of the TiO2/P3HT interface. Samples with porous TiO2 films show better charge carrier separation, but the deep trapping of charge carriers at the interface appear. The charge carrier recombination is trimolecular (Auger type recombination) with the similar values of recombination coefficients in both types of samples.

AB - In this paper the influence of TiO2/polymer (RR-P3HT) interface to photo generated charge carriers separation and recombination have been studied. The quantum efficiency and charge carrier recombination were studied in heterojunctions of TiO2 (prepared with porous or flat interface) and spin coated RR-P3HT polymer film using time of flight (TOF) and double injection (DoI) transient methods. From the shape of the TOF transients it was determined that the charge carrier generation is taking place in the vicinity of the TiO2/P3HT interface. Samples with porous TiO2 films show better charge carrier separation, but the deep trapping of charge carriers at the interface appear. The charge carrier recombination is trimolecular (Auger type recombination) with the similar values of recombination coefficients in both types of samples.

KW - charge carrier generation and recombination

KW - photovoltaics

KW - charge carrier generation and recombination

KW - photovoltaics

KW - charge carrier generation and recombination

KW - photovoltaics

U2 - 10.1117/12.815634

DO - 10.1117/12.815634

M3 - Artikel

SN - 0277-786X

VL - 7142

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