PMID- 19835409
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20100426
LR  - 20100209
IS  - 1520-5827 (Electronic)
IS  - 0743-7463 (Linking)
VI  - 26
IP  - 4
DP  - 2010 Feb 16
TI  - Preparation of highly ordered mesoporous Al2O3/TiO2 and its application in 
      dye-sensitized solar cells.
PG  - 2864-70
LID - 10.1021/la902931w [doi]
AB  - Highly ordered mesoporous Al(2)O(3)/TiO(2) was prepared by sol-gel reaction and 
      evaporation-induced self-assembly (EISA) for use in dye-sensitized solar cells. 
      The prepared materials had two-dimensional, hexagonal pore structures with 
      anatase crystalline phases. The average pore size of mesoporous Al(2)O(3)/TiO(2) 
      remained uniform and in the range of 6.33-6.58 nm while the 
      Brunauer-Emmett-Teller (BET) surface area varied from 181 to 212 m(2)/g with 
      increasing the content of Al(2)O(3). The incorporation of Al content retarded 
      crystallite growth, thereby decreasing crystallite size while simultaneously 
      improving the uniformity of pore size and volume. The thin Al(2)O(3) layer was 
      located mostly on the mesopore surface, as confirmed by X-ray photoelectron 
      spectroscopy (XPS). The Al(2)O(3) coating on the mesoporous TiO(2) film 
      contributes to the essential energy barrier which blocks the charge recombination 
      process in dye-sensitized solar cells. Mesoporous Al(2)O(3)/TiO(2) (1 mol % 
      Al(2)O(3)) exhibited enhanced power conversion efficiency (V(oc) = 0.74 V, J(sc) 
      = 15.31 mA/cm(2), fill factor = 57%, efficiency = 6.50%) compared to pure 
      mesoporous TiO(2) (V(oc) = 0.72 V, J(sc) = 16.03 mA/cm(2), fill factor = 51%, 
      efficiency = 5.88%). Therefore, the power conversion efficiency was improved by 
      approximately 10.5%. In particular, the increase in V(oc) and fill factor 
      resulted from the inhibition of charge recombination and the improvement of pore 
      structure.
FAU - Kim, Jae-Yup
AU  - Kim JY
AD  - School of Chemical & Biological Engineering and Research Center for Energy 
      Conversion & storage, Seoul National University, San 56-1, Sillim-dong, 
      Gwanak-gu, Seoul 151-742, South Korea.
FAU - Kang, Soon Hyung
AU  - Kang SH
FAU - Kim, Hyun Sik
AU  - Kim HS
FAU - Sung, Yung-Eun
AU  - Sung YE
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Langmuir
JT  - Langmuir : the ACS journal of surfaces and colloids
JID - 9882736
EDAT- 2009/10/20 06:00
MHDA- 2009/10/20 06:01
CRDT- 2009/10/20 06:00
PHST- 2009/10/20 06:00 [entrez]
PHST- 2009/10/20 06:00 [pubmed]
PHST- 2009/10/20 06:01 [medline]
AID - 10.1021/la902931w [doi]
PST - ppublish
SO  - Langmuir. 2010 Feb 16;26(4):2864-70. doi: 10.1021/la902931w.