Electron transport properties of TiO
2
shell on Al
2
O
3
core in dye-sensitized solar cells
Xie Dongmei
1, 2
, Tang Xiaowen
1, 2
, Lin Yuan
1, 2, †
, Ma Pin
1, 2
, Zhou Xiaowen
1, 2
(color online) XRD patterns of FTO, Al
2
O
3
film, and A/T(4) film.