Efficient tuning of benzocarbazole based small donor molecules with D-π-A-π-D configuration for high-efficiency solar cells via π-bridge manipulation: a DFT/ TD-DFT study

Author(s):  
Hanane Etabti ◽  
Asmae Fitri ◽  
Adil Touimi Benjelloun ◽  
Mohammed Benzakour ◽  
Mohammed Mcharfi
2008 ◽  
Author(s):  
Bernd Ahrens ◽  
Bastian Henke ◽  
Paul T. Miclea ◽  
Jacqueline A. Johnson ◽  
Stefan Schweizer

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.


1992 ◽  
Vol 258 ◽  
Author(s):  
Sadaji Tsuge ◽  
Yoshihiro Hishikawa ◽  
Shingo Okamoto ◽  
Manabu Sasaki ◽  
Shinya Tsuda ◽  
...  

ABSTRACTA hydrogen-plasma treatment has been used for the first time to fabricate wide-gap, high-quality a-Si:H films. The hydrogen content (CH) of a-Si:H films substantially increases by the hydrogen-plasma treatment after deposition, without deteriorating the opto-electric properties of the films. The photoconductivity (σph) of ≥ 10-5 ο-1 cm-1, photosensitivity ( σ ph/σ d) of > 106 and SiH2/SiH of <0.2 are achieved for a film with CH of ∼25 atomic >%. The optical gap of the film is > 1.70 eV by the (α h ν )1/3 plot, and is >2 eV by the Tauc's plot. The open circuit voltage of a-Si solar cells exceeds 1 V conserving the fill factor of > 0.7 when the wide-gap a∼Si:H films are used as the i-layer, which proves the wide band gap and low defect density.


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