1360171-35-2Relevant academic research and scientific papers
Effect of different acceptors on N-hexyl carbazole moiety for dye-sensitized solar cells: design, characterization, molecular structure, and DSSC fabrications
Abusaif, Moustafa S.,Abu-Saied,Fathy,El-Sherif, Ahmed A.,Kashyout,Selim, Mohamed R.,Ammar, Yousry A.
, p. 949 - 960 (2021)
Hexyl carbazole derivatives are one of the most prominent dye scaffolds in the dye-sensitized solar cells (DSSCs). New substituted carbazole dyes such as DRA-HC, DCA-HC, and DTC-HC were synthesized for DSSCs. These dyes are containing hexyl moiety as electron donor and rhodanine-3-acetic acid, cyanoacetic acid and tetracyanoethylene as an electron acceptor linked to carbazole moiety. The relation between dye structures, photophysical/electrochemical, molecular structure and DSSC manufacturing had been discussed. All structures showed more positive ground-state oxidation potential than I?/I?3 and more negative excited state oxidation potential than the conduction band edge of the semiconductor. The highest efficiency of the DSSCs was obtained in the case of DCA-HC dye (η = 1.41%, VOC = 708?mV, FF = 0.81, and JSC = 2.45?mA?cm?2 with 100?mW?cm?2) compared to other synthesized dyes.
Synthesis and photovoltaic performance of long wavelength absorbing organic dyes for dye-sensitized solar cells
Kim, Sang Ah,Jo, Hyo Jeong,Jung, Mi Ran,Choi, Young Cheol,Lee, Do Kyung,Lee, Moonyong,Kim, Jae Hong
, p. 283 - 294 (2012/05/04)
We prepared novel organic photo-sensitizers based on a carbazole framework containing various acceptors with thiophene bridge units in the chromophore for the application to dye-sensitized solar cell (DSSC). Furthermore, organic dyes without bridge in the chromophore also synthesized to investigate the correlation between conjugation lengths and photon-to-current efficiency (PCE). Compared to non-bridged dyes, the DSSCs device containing multi-anchoring dyes with thiophene bridge exhibited much higher PCEs, resulting from efficient electron extraction pathways, higher molar extinction coefficients, and better light absorption in longer wavelengths.
