| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
|
|
|
|
Role of TiO2 Nanotube on Improvement of Performance of Hybrid Photovoltaic Devices |
| SHI Quan-Min, HOU Yan-Bing, LI Yan, FENG Zhi-Hui, LIU Xiao-Jun |
| Key Laboratory of Luminescence and Optical Information (Ministry of Education), Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044 |
|
| Cite this article: |
|
SHI Quan-Min, HOU Yan-Bing, LI Yan et al 2009 Chin. Phys. Lett. 26 017202 |
|
|
|
|
Abstract The performance of TiO2 nanotubes in bulk heterojunction of poly (2-methoxy-5-(2'-ethylhexyloxy)-1, 4-phenylenevinylene) (MEH-PPV)/TiO2 nanotubes is investigated. The transport properties are studied by using the time-of-flight technique (TOF). The carrier mobilities of both holes and electrons are not improved for the MEH-PPV:TiO2 composites compared with the pristine MEH-PPV. However, photoluminescence under the influence of the electric field indicates that the dissociation of excitons in the MEH-PPV:TiO2 composites, which is facilitated by photoinduced charge transfer, only requires a smaller electric field.
|
| Keywords:
72.40.+w
72.80.Tm
72.80.Le
|
|
|
Received: 16 June 2008
Published: 24 December 2008
|
|
| PACS: |
72.40.+w
|
(Photoconduction and photovoltaic effects)
|
| |
72.80.Tm
|
(Composite materials)
|
| |
72.80.Le
|
(Polymers; organic compounds (including organic semiconductors))
|
|
|
|
|
|
[1] Green M 2001 Progr. Photovolt. 9 123
[2] Coakley K M and McGehee M D 2004 Chem. Mater. 16 4533
[3] Nelson J 2002 Curr. Opin. Solid State Mater. Sci. 6 87
[4] Dittmer J J, Marseglia E A and Friend R H 2000 Adv.Mater. 12 1270
[5] Yu G, Gao J, Hummelen J C, Wudl F and Heeger A J 1995 Science 270 1789
[6] Ltaief A, Davenas J, Bouazizi A, Cha\^{abane R B,Alcouffe P and Ouada H B 2005 Mater. Sci. Eng. C 25 67
[7] Huynh W U, Dittmer J J and Alivisatos A P 2002 Science 295 2425
[8] Greenham N C, Peng X and Alivisatos A P 1996 Phys.Rev. B 54 17628
[9] Scharber M C, Schultz N A, Sariciftci N S and Brabec C J2003 Phys. Rev. B 67 085202
[10] Nollau A, Hoffmann M, Fritz T and Leo K 2001 ThinSolid Films 368 130
[11] Hagfeldt A and Gr\"{atzel M 2000 Acc. Chem. Res. 33 269
[12] Ravirajan P, Bradley D D C, Nelson J, Haque S A, DurrantJ R, Smit H J P and Kroon J M 2005 Appl. Phys. Lett. 86143101
[13] Kim S S et al 2007 J. Photochem. Photobiol. A:Chem. 188 364
[14] Lin Y T, Zeng T W, Lai W Z, Chen CW, Lin Y Y, Chang Y Sand Su W F 2006 Nanotechnology 17 5781
[15] Jin H, Hou Y B, Meng X G and Teng F 2007 Chem. Phys.Lett. 443 374
[16] Kreouzis T, Poplavskyy D, Tuladhar S M, Campoy-Quiles M,Nelson J, Campbell A J and Bradley D D C 2006 Phys. Rev. B 73 235201
[17] Shi Q M, Hou Y B, Lu J, Jin H, and Li Y B 2006 Chin.Phys. Lett. 23 950
[18] B\"{assler H 1993 Phys. Status Solidi B 15175
[19] Shi Q, Hou Y, Jin H and Li Y 2007 J. Appl. Phys. 102 073108
[20] Wang M and Wang X 2007 Sol. Energ. Mat. Sol. C 91 1782
[21] Petrella A, Tamborra M, Curri M L, Cosma P, Striccoli M,Cozzoli P D and Agostiano A 2005 J. Phys. Chem. B 1091554
[22] Castro G and Hornig J F 1965 J. Chem. Phys. 42 1459
[23] Geacintov N, Pope M and Kallmann H 1966 J. Chem.Phys. 45 2639
[24] Pope M and Swenberg C E 1999 Electronic Processes inOrganic Crystals and Polymers 2nd edn (Oxford: Oxford University Press) |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
