Ultrafast carrier dynamics in hematite films: The role of photoexcited electrons in the transient optical response

Journal of Physical Chemistry C

Volumn 118, Issue 41, 2014, Pages 23621-23626

  Sorenson, Shayne ^a   Driscoll, Eric ^a   Haghighat, Shima ^a   Dawlaty, Jahan M ^a  

^a UNIVERSITY OF SOUTHERN CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ABSORPTION SPECTROSCOPY; BLEACHING; CLEANING; CONDUCTION BANDS; DYNAMICS; GROUND STATE; HEMATITE; OPTICAL PUMPING; PROBES; STIMULATED EMISSION; THIN FILM DEVICES;

CARRIER RECOMBINATION; ELECTRONIC BAND STRUCTURE CALCULATION; EXCITED STATE ABSORPTION; PHOTOCATALYTIC MATERIALS; PHOTOEXCITED ELECTRONS; PHOTOGENERATED ELECTRONS; ULTRAFAST CARRIER DYNAMICS; ULTRAFAST TRANSIENT ABSORPTION SPECTROSCOPY;

EXCITED STATES;

EID: 84949132847     PISSN: 19327447     EISSN: 19327455     Source Type: Journal    
DOI: 10.1021/jp508273f     Document Type: Article

References (38)

1. Cornell, R. M. The Iron Oxides: Structure, Properties, Reactions, Occurrences and Uses; Wiley-VCH: Weinheim, Germany, 2003.
2. 3) Photoelectrodes ChemSusChem 2011, 4, 432-449
3. Nocera, D. G. The Artificial Leaf Acc. Chem. Res. 2012, 45, 767-776
4. Tachibana, Y.; Vayssieres, L.; Durrant, J. R. Artificial Photosynthesis for Solar Water-Splitting Nat. Photonics 2012, 6, 511-518
5. Pauling, L.; Hendricks, S. B. The Crystal Structures of Hematite and Corundum J. Am. Chem. Soc. 1925, 47, 781-790
6. 3) via Embedded Cluster Models: A CASPT2 Study J. Phys. Chem. C 2011, 115, 20795-20805
7. Liao, P.; Toroker, M. C.; Carter, E. A. Electron Transport in Pure and Doped Hematite Nano Lett. 2011, 11, 1775-1781
8. 3) as a Benchmark Phys. Chem. Chem. Phys. 2011, 13, 15189-15199
9. Liao, P.; Keith, J. A.; Carter, E. A. Water Oxidation on Pure and Doped Hematite (0001) Surfaces: Prediction of Co and Ni as Effective Dopants for Electrocatalysis J. Am. Chem. Soc. 2012, 134, 13296-13309
10. Pozun, Z. D.; Henkelman, G. Hybrid Density Functional Theory Band Structure Engineering in Hematite J. Chem. Phys. 2011, 134, 224706
11. Rollmann, G.; Rohrbach, A.; Entel, P.; Hafner, J. First-Principles Calculation of The Structure and Magnetic Phases of Hematite Phys. Rev. B 2004, 69, 165107
12. Thimsen, E.; Biswas, S.; Lo, C. S.; Biswas, P. Predicting the Band Structure of Mixed Transition Metal Oxides: Theory and Experiment J. Phys. Chem. C 2009, 113, 2014-2021
13. 3 Solid Solutions: A First-Principles Study J. Phys. Chem. C 2013, 117, 25504-25512
14. Butler, W. H.; Bandyopadhyay, a.; Srinivasan, R. Electronic and Magnetic Structure of a 1000 K Magnetic Semiconductor: α-Hematite (Ti) J. Appl. Phys. 2003, 93, 7882-7884
15. Rivera, R.; Pinto, H. P.; Stashans, A.; Piedra, L. Density Functional Theory Study of Al-Doped Hematite Phys. Scr. 2012, 85, 015602
16. 3 Calculated by The Screened Exchange Hybrid Density Functional J. Phys.: Condens. Matter 2012, 24, 325504
17. 3) (0001) J. Phys.: Condens. Matter 2012, 24, 095003
18. Nørskov, J. K.; Bligaard, T.; Rossmeisl, J.; Christensen, C. H. Towards the Computational Design of Solid Catalysts Nat. Chem. 2009, 1, 37-46
19. Wheeler, D. A.; Wang, G.; Ling, Y.; Li, Y.; Zhang, J. Z. Nanostructured Hematite: Synthesis, Characterization, Charge Carrier Dynamics, and Photoelectrochemical Properties Energy Environ. Sci. 2012, 5, 6682-6702
20. 3 (0001) Thin Films and Single Crystals Probed by Femtosecond Transient Absorption and Reflectivity J. Appl. Phys. 2006, 99, 053521
21. Zhai, T.; Yao, J. One-Dimensional Nanostructures; John Wiley & Sons, Inc.: Hoboken, NJ, 2013.
22. 3 Electrodes for Water Oxidation Probed by Transient Absorption Spectroscopy Chem. Commun. 2011, 47, 716-718
23. Barroso, M.; Pendlebury, S. R.; Cowan, A. J.; Durrant, J. R. Charge Carrier Trapping, Recombination and Transfer in Hematite (α-Fe2O3) Water Splitting Photoanodes Chem. Sci. 2013, 4, 2724-2734
24. Le Formal, F.; Pendlebury, S. R.; Cornuz, M.; Tilley, S. D.; Grätzel, M.; Durrant, J. R. Back Electron-Hole Recombination in Hematite Photoanodes for Water Splitting J. Am. Chem. Soc. 2014, 136, 2564-2574
25. Pendlebury, S. R.; Wang, X.; Le Formal, F.; Cornuz, M.; Kafizas, A.; Tilley, S. D.; Grätzel, M.; Durrant, J. R. Ultrafast Charge Carrier Recombination and Trapping in Hematite Photoanodes under Applied Bias J. Am. Chem. Soc. 2014, 136, 9854-9857
26. 3) Electrodes Energy Environ. Sci. 2012, 5, 8923-8926
27. 3 J. Phys. Chem. Lett. 2013, 4, 3667-3671
28. 3 Core-Shell Nanostructures J. Phys. Chem. B 2006, 110, 16937-16940
29. 4nanocrystals J. Chem. Phys. 2004, 120, 3406-3413
30. 3 Semiconductor Nanoparticles J. Phys. Chem. B 1998, 102, 770-776
31. Nadtochenko, V. A.; Denisov, N. N.; Gak, V. Y.; Gostev, F. E.; Titov, A. A.; Sarkisov, O. M.; Nikandrov, V. V. Femtosecond Relaxation of Photoexcited States in Nanosized Semiconductor Particles of Iron Oxides Russ. Chem. Bull., Int. Ed. 2002, 51, 457-461
32. 3-Based Films for Water Oxidation Nano Lett. 2011, 11, 3503-3509
33. 3 Hollow Nanocrystals and Their Tunable Optical Properties J. Phys. Chem. C 2009, 9928-9935
34. Buono-Core, G.; Tejos, M.; Lara, J.; Aros, F.; Hill, R. Solid-state photochemistry of a Cu(II) -diketonate complex: the photochemical formation of high quality films of copper(II) oxide Mater. Res. Bull. 1999, 34, 2333-2340
35. Smith, R. D. L.; Prvot, M. S.; Fagan, R. D.; Zhang, Z.; Sedach, P. A.; Siu, M. K. J.; Trudel, S.; Berlinguette, C. P. Photochemical Route for Accessing Amorphous Metal Oxide Materials for Water Oxidation Catalysis Science 2013, 340, 60-63
36. 3 Electrodes J. Electrochem. Soc. 1978, 125, 709-714
37. Tauc, J.; Grigorovici, R.; Vancu, A. Optical Properties and Electronic Structure of Amorphous Germanium Phys. Status Solidi B 1966, 15, 627-637
38. Lee, J.; Kim, M.; Noh, T. Optical Excitations of Transition-Metal Oxides under The Orbital Multiplicity Effects New J. Phys. 2005, 7, 147