Quantum chemical investigation of structural and electronic properties of trans- and cis-structures of some azo dyes for dye-sensitized solar cells

2017 ◽  
Vol 1102 ◽  
pp. 87-97 ◽  
Author(s):  
Samaneh Bagheri Novir ◽  
Seyed Majid Hashemianzadeh
2014 ◽  
Vol 16 (39) ◽  
pp. 21827-21837 ◽  
Author(s):  
Ping-Ping Sun ◽  
Quan-Song Li ◽  
Li-Na Yang ◽  
Zhu-Zhu Sun ◽  
Ze-Sheng Li

Electron gets directly transferred from the HOMO of C258 to the bottom conduction band of TiO2 in bidentate bridging adsorption mode.


2015 ◽  
Vol 1066 ◽  
pp. 94-99 ◽  
Author(s):  
Asif Mahmood ◽  
Mudassir Hussain Tahir ◽  
Ahmad Irfan ◽  
Abdullah G. Al-Sehemi ◽  
M.S. Al-Assiri

RSC Advances ◽  
2021 ◽  
Vol 11 (44) ◽  
pp. 27570-27582
Author(s):  
Sabir Ali Siddique ◽  
Muhammad Arshad ◽  
Sabiha Naveed ◽  
Muhammad Yasir Mehboob ◽  
Muhammad Adnan ◽  
...  

We used a quantum chemical approach to investigate the optoelectronic properties of dyes T1–T5 for dye-sensitized solar cells using DFT and TD-DFT computation. The newly designed molecules exhibited outstanding photovoltaic and optoelectronic properties.


2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Carolynne Zie Wei Sie ◽  
Zainab Ngaini

Sensitization of heavy metal free organic dyes onto TiO2 thin films has gained much attention in dye sensitized solar cells (DSSCs). A series of new kojic acid based organic dyes KA1–4 were synthesized via nucleophilic substitution of azobenzene bearing different vinyl chains A1–4 with kojyl chloride 4. Azo dyes KA1–4 were characterized for photophysical properties employing absorption spectrometry and photovoltaic characteristic in TiO2 thin film. The presence of vinyl chain in A1–4 improved the photovoltaic performance from 0.20 to 0.60%. The introduction of kojic acid obtained from sago waste further increases the efficiency to 0.82–1.54%. Based on photovoltaic performance, KA4 achieved the highest solar to electrical energy conversion efficiency (η = 1.54%) in the series.


2015 ◽  
Vol 51 (9) ◽  
pp. 1631-1634 ◽  
Author(s):  
F. Mohammadpour ◽  
M. Moradi ◽  
K. Lee ◽  
G. Cha ◽  
S. So ◽  
...  

Free standing TiO2 nanotube membranes are transferred onto FTO slides in front-side illuminated dye-sensitized solar cells (DSSCs). The electronic properties of the tubes and, as a result, the efficiency of the DSSCs can be considerably improved by ramped annealing.


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