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Cited by 438

The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.

Efficient Light Harvesting by Using Green Zn-Porphyrin-Sensitized Nanocrystalline TiO2 Films

Open access
Wang, Qing, Campbell, Wayne M., Bonfantani, Edia E., Jolley, Kenneth W., Officer, David L., Walsh, Penny J., Gordon, Keith, Humphry-Baker, Robin, Nazeeruddin, Mohammad K., Grätzel, Michael·2005·The Journal of Physical Chemistry B
DOI 10.1021/jp052877w
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Abstract

A series of novel zinc metalloporphyrins, cyano-3-(2'-(5',10',15',20'-tetraphenylporphyrinato zinc(II))yl)-acrylic acid (Zn-3), 3-(trans-2'-(5',10',15',20'-tetraphenylporphyrinato zinc(II))yl)-acrylic acid (Zn-5), 2-cyano-5-(2'-(5',10',15',20'-tetraphenylporphyrinato zinc(II))yl)-penta-2,4-dienoic acid (Zn-8), 4-(trans-2'-(2' '-(5' ',10' ',15' ',20' '-tetraphenylporphyrinato zinc(II))yl)ethen-1'-yl))-1,2-benzenedicarboxylic acid (Zn-11), and 2-cyano-3-[4'-(trans-2' '-(2' ''-(5' '',10' '',15' '',20' ''-tetraphenylporphyrinato zinc(II))yl) ethen-1' '-yl)-phenyl]-acrylic acid (Zn-13) were synthesized and characterized by using various spectroscopic techniques. Density functional theory (DFT) and time-dependent DFT (TDDFT) calculations show that key molecular orbitals (MOs) of porphyrins Zn-5 and Zn-3 are stabilized and extended out onto the substituent by pi-conjugation, causing enhancement and red shifts of visible transitions and increasing the possibility of electron transfer from the substituent. The porphyrins were investigated for conversion of sunlight into electricity by constructing dye-sensitized TiO(2) solar cells using an I(-)/I(3)(-) electrolyte. The cells yield close to 85% incident photon-to-current efficiencies (IPCEs), and under standard AM 1.5 sunlight, the Zn-3-sensitized solar cell demonstrates a short circuit photocurrent density of 13.0 +/- 0.5 mA/cm(2), an open-circuit voltage of 610 +/- 50 mV, and a fill factor of 0.70 +/- 0.03. This corresponds to an overall conversion efficiency of 5.6%, making it the most efficient porphyrin-sensitized solar cell reported to date.

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Metadata

Authors
Wang, Q., Campbell, W. M., Bonfantani, E. E., Jolley, K. W., Officer, D. L., Walsh, P. J., Gordon, K., Humphry-Baker, R., Nazeeruddin, M. K., & Grätzel, M.
Venue
The Journal of Physical Chemistry B
Publisher
American Chemical Society (ACS)
Published
2005-07-21
Volume
109
Issue
32
Pages
15397-15409
ISSN
  • 1520-5207 (ISSN-L)
  • 1520-6106
DOI
10.1021/jp052877w
OpenAlex
W2071838602
Cited by
438
References
36
FWCI
12.70
Type
journal article
Language
en
Open access
green

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