1 Subjects: “...sol-gel...”

2 Subjects: “...sol-gel...”

3 Subjects: “...aqueous sol-gel process...”

4 Subjects: “...sol-gel method...”

5 Subjects: “...sol-gel...”

6 Subjects: “...sol-gel...”

7 Subjects: “...sol-gel technique...”

8 Subjects: “...sol-gel...”

9 Subjects: “...sol-gel...”

10 Subjects: “...sol-gel...”

11 Subjects: “...sol-gel...”

12 Subjects: “...sol-gel process...”

13 Subjects: “...sol-gel transition...”

14 Subjects: “...sol-gel...”

15 Subjects: “...sol-gel...”

16 Subjects: “...sol-gel...”

17 Subjects: “...sol-gel TiO2 film...”