Impact of the Anchoring Ligand on Electron Injection and Recombination Dynamics at the Interface of Novel Asymmetric Push-Pull Zinc Phthalocyanines and TiO2

Divya Sharma; Gerwin Steen; Jeroen P. Korterik; Miguel García-Iglesias; Purificacion Vazquez; Tomás Torres; Jennifer L. Herek; Annemarie Huijser

doi:10.1021/jp410080a

Impact of the Anchoring Ligand on Electron Injection and Recombination Dynamics at the Interface of Novel Asymmetric Push-Pull Zinc Phthalocyanines and TiO2

Divya Sharma, Gerwin Steen, Jeroen P. Korterik, Miguel García-Iglesias, Purificacion Vazquez, Tomás Torres, Jennifer L. Herek, Annemarie Huijser

Research output: Contribution to journal › Article › Academic › peer-review

16 Citations (Scopus)

3 Downloads (Pure)

Abstract

Phthalocyanines are promising photosensitizers for dye-sensitized solar cells (DSSCs). A parameter that has been problematic for a long time involves electron injection (EI) into the TiO2. The development of push-pull phthalocyanines shows great potential to improve the ratio of EI to back electron transfer (BET). We have studied the impact of the anchoring ligand on EI and BET using transient absorption. The best performing derivative, which has a dicarboxylic acid anchoring ligand (TT15, DSSC efficiency of 3.96%), shows the fastest EI. The EI process occurs via an ultrafast component (~700 fs for all derivatives) and a slower component (5.8 ps for TT15). The ps component is considerably slower for the other derivatives studied. Also BET depends on the anchoring ligand and is the slowest for TT15. This knowledge is essential for the optimization of the EI/BET ratio and the efficiency of a phthalocyanine-based DSSC.

Original language	English
Pages (from-to)	25397-25404
Number of pages	8
Journal	The Journal of physical chemistry C
Volume	117
Issue number	48
DOIs	https://doi.org/10.1021/jp410080a
Publication status	Published - 2013

Keywords

2023 OA procedure

Access to Document

10.1021/jp410080a

ArticleFinal published version, 380 KBLicence: Taverne

Cite this

Sharma, D., Steen, G., Korterik, J. P., García-Iglesias, M., Vazquez, P., Torres, T., Herek, J. L., & Huijser, A. (2013). Impact of the Anchoring Ligand on Electron Injection and Recombination Dynamics at the Interface of Novel Asymmetric Push-Pull Zinc Phthalocyanines and TiO2. The Journal of physical chemistry C, 117(48), 25397-25404. https://doi.org/10.1021/jp410080a

@article{13ea611a176a42418100803bb7b3276f,

title = "Impact of the Anchoring Ligand on Electron Injection and Recombination Dynamics at the Interface of Novel Asymmetric Push-Pull Zinc Phthalocyanines and TiO2",

abstract = "Phthalocyanines are promising photosensitizers for dye-sensitized solar cells (DSSCs). A parameter that has been problematic for a long time involves electron injection (EI) into the TiO2. The development of push-pull phthalocyanines shows great potential to improve the ratio of EI to back electron transfer (BET). We have studied the impact of the anchoring ligand on EI and BET using transient absorption. The best performing derivative, which has a dicarboxylic acid anchoring ligand (TT15, DSSC efficiency of 3.96%), shows the fastest EI. The EI process occurs via an ultrafast component (~700 fs for all derivatives) and a slower component (5.8 ps for TT15). The ps component is considerably slower for the other derivatives studied. Also BET depends on the anchoring ligand and is the slowest for TT15. This knowledge is essential for the optimization of the EI/BET ratio and the efficiency of a phthalocyanine-based DSSC.",

keywords = "2023 OA procedure",

author = "Divya Sharma and Gerwin Steen and Korterik, {Jeroen P.} and Miguel Garc{\'i}a-Iglesias and Purificacion Vazquez and Tom{\'a}s Torres and Herek, {Jennifer L.} and Annemarie Huijser",

year = "2013",

doi = "10.1021/jp410080a",

language = "English",

volume = "117",

pages = "25397--25404",

journal = "The Journal of physical chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

number = "48",

}

Sharma, D, Steen, G, Korterik, JP, García-Iglesias, M, Vazquez, P, Torres, T, Herek, JL & Huijser, A 2013, 'Impact of the Anchoring Ligand on Electron Injection and Recombination Dynamics at the Interface of Novel Asymmetric Push-Pull Zinc Phthalocyanines and TiO2', The Journal of physical chemistry C, vol. 117, no. 48, pp. 25397-25404. https://doi.org/10.1021/jp410080a

Impact of the Anchoring Ligand on Electron Injection and Recombination Dynamics at the Interface of Novel Asymmetric Push-Pull Zinc Phthalocyanines and TiO2. / Sharma, Divya; Steen, Gerwin; Korterik, Jeroen P. et al.
In: The Journal of physical chemistry C, Vol. 117, No. 48, 2013, p. 25397-25404.

Research output: Contribution to journal › Article › Academic › peer-review

TY - JOUR

T1 - Impact of the Anchoring Ligand on Electron Injection and Recombination Dynamics at the Interface of Novel Asymmetric Push-Pull Zinc Phthalocyanines and TiO2

AU - Sharma, Divya

AU - Steen, Gerwin

AU - Korterik, Jeroen P.

AU - García-Iglesias, Miguel

AU - Vazquez, Purificacion

AU - Torres, Tomás

AU - Herek, Jennifer L.

AU - Huijser, Annemarie

PY - 2013

Y1 - 2013

N2 - Phthalocyanines are promising photosensitizers for dye-sensitized solar cells (DSSCs). A parameter that has been problematic for a long time involves electron injection (EI) into the TiO2. The development of push-pull phthalocyanines shows great potential to improve the ratio of EI to back electron transfer (BET). We have studied the impact of the anchoring ligand on EI and BET using transient absorption. The best performing derivative, which has a dicarboxylic acid anchoring ligand (TT15, DSSC efficiency of 3.96%), shows the fastest EI. The EI process occurs via an ultrafast component (~700 fs for all derivatives) and a slower component (5.8 ps for TT15). The ps component is considerably slower for the other derivatives studied. Also BET depends on the anchoring ligand and is the slowest for TT15. This knowledge is essential for the optimization of the EI/BET ratio and the efficiency of a phthalocyanine-based DSSC.

AB - Phthalocyanines are promising photosensitizers for dye-sensitized solar cells (DSSCs). A parameter that has been problematic for a long time involves electron injection (EI) into the TiO2. The development of push-pull phthalocyanines shows great potential to improve the ratio of EI to back electron transfer (BET). We have studied the impact of the anchoring ligand on EI and BET using transient absorption. The best performing derivative, which has a dicarboxylic acid anchoring ligand (TT15, DSSC efficiency of 3.96%), shows the fastest EI. The EI process occurs via an ultrafast component (~700 fs for all derivatives) and a slower component (5.8 ps for TT15). The ps component is considerably slower for the other derivatives studied. Also BET depends on the anchoring ligand and is the slowest for TT15. This knowledge is essential for the optimization of the EI/BET ratio and the efficiency of a phthalocyanine-based DSSC.

KW - 2023 OA procedure

U2 - 10.1021/jp410080a

DO - 10.1021/jp410080a

M3 - Article

SN - 1932-7447

VL - 117

SP - 25397

EP - 25404

JO - The Journal of physical chemistry C

JF - The Journal of physical chemistry C

IS - 48

ER -