Steric and Solvent Effect in Dye-Sensitized Solar Cells Utilizing Phenothiazine-Based Dyes

Table 2

Photovoltaic performances of PT1–3 dyes in different adsorption solutions.

Device	𝑉oc (V)	𝐽sc (mA/cm^2)	FF	PCE
E1	691	6.08	0.693	2.91%
E2	726	6.29	0.697	3.18%
E3	779	6.66	0.730	3.78%
T1	644	4.08	0.698	1.83%
T2	676	4.62	0.680	2.12%
T3	726	4.83	0.720	2.53%

E: EtOH; T: THF solutions. Photovoltaic performance was measured under AM 1.5 simulated sunlight illuminations with the light intensity 100 mW/cm². Soaking time was 24 h. Electrolyte: mixture of 0.03 M iodine, 0.6 M (BMII), 0.05 M (LiClO4), and 0.5 M (TBP) dissolved in AN.