Namangan Institute of Engineering and Technology
nammti.uz
10.25.2023
Pg.270
According to the articles of [5,6,7], the formation of charge and its transport and discharge
process in highly sensitive colored solar cells are given in the following expressions
𝑆(𝑇𝑖𝑂
2
) + ℎ𝜈 → 𝑆
∗
(𝑇𝑖𝑂
2
)
(1)
𝑆
∗
(𝑇𝑖𝑂
2
) → 𝑆
+
(𝑇𝑖𝑂
2
) + 𝑒
−
𝑇𝑖𝑂
2
(2)
2𝑆
+
(𝑇𝑖𝑂
2
) + 3𝐼
−
→ 2𝑆(𝑇𝑖𝑂
2
) + 𝐼
3
−
(3)
𝐼
3
−
+ 2𝑒
−
(𝑃𝑡) → 3𝐼
−
(4)
𝑆
+
(𝑇𝑖𝑂
2
) + 𝑒
−
𝑇𝑖𝑂
2
→ 𝑆(𝑇𝑖𝑂
2
)
(5)
𝐼
3
−
+ 2𝑒
−
(𝑇𝑖𝑂
2
) → 3𝐼
−
(6)
𝑆
∗
(𝑇𝑖𝑂
2
) → 𝑆(𝑇𝑖𝑂
2
)
(7)
The processes that take place in p-type DSSCs are given in the following expressions:
𝑆(𝑁𝑖𝑂) + ℎ𝜈 → 𝑆
∗
(𝑁𝑖𝑂)
(8)
𝑆
∗
(𝑁𝑖𝑂) → 𝑆
−
(𝑁𝑖𝑂) + 𝑁𝑖𝑂
+
(9)
2𝑆
−
(𝑁𝑖𝑂) + 2𝐼
3
−
→ 2𝑆(𝑁𝑖𝑂) + 2𝐼
2
−
+ 2𝐼
−
(10)
3𝐼
−
+ 𝑃𝑡(2+) → 𝐼
3
−
(11)
𝑆
−
(𝑁𝑖𝑂) + 𝑁𝑖𝑂(+) → 𝑆(𝑁𝑖𝑂)
(12)
3𝐼
−
+ 𝑁𝑖𝑂(+) → 𝐼
3
−
(13)
𝑆
∗
(𝑁𝑖𝑂) → 𝑆(𝑁𝑖𝑂)
(14)
Thus, in this study, the components of DSSC-Dye sensitized solar cell (DSSC- Dye sensitized
solar cell) and the processes that take place in them are presented and the principle of operation is
studied. Apparently, the technology of making this solar cell is simple and inexpensive, it is
environmentally friendly and safe.Therefore, today the use of this type of solar cells fully meets the
requirements of the times.
