1440427-10-0Relevant academic research and scientific papers
Thiophene-bridged tetramine pyrene hole transport material and application thereof in perovskite solar cell
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Paragraph 0066; 0087-0092, (2020/07/12)
The invention discloses a thiophene-bridged pyrenetetramine hole-transport material and application of the same to a perovskite solar cell. The thiophene-bridged pyrenetetramine hole-transport material has a structural formula as shown in a formula I which is described in the specification. The hole-transport material has a thiophene-bridged triarylated amine unit which presents good dissolvability and good film forming ability in an organic solvent, a large conjugate plane structure is beneficial for effective improvement of the hole mobility of the material, and preparation cost is low. Thetesting results of physical properties, electrochemical performance and heat stability prove that the hole-transport material has good heat stability and can match with the energy level of perovskite.When the hole-transport material is applied to the perovskite solar cell as a hole-transport layer, good photoelectric conversion efficiency is obtained.
Diacetylene bridged triphenylamines as hole transport materials for solid state dye sensitized solar cells
Planells, Miquel,Abate, Antonio,Hollman, Derek J.,Stranks, Samuel D.,Bharti, Vishal,Gaur, Jitender,Mohanty, Dibyajyoti,Chand, Suresh,Snaith, Henry J.,Robertson, Neil
, p. 6949 - 6960 (2013/07/26)
We have synthesized and characterized a series of triphenylamine-based hole-transport materials (HTMs), and studied their function in solid-state dye sensitized solar cells (ss-DSSCs). By increasing the electron-donating strength of functional groups (-H -Me -SMe -OMe) we have systematically shifted the oxidation potential and ensuing photocurrent generation and open-circuit voltage of the solar cells. Correlating the electronic properties of the HTM to the device operation highlights a significant energy offset required between the Dye-HTM highest occupied molecular orbital (HOMO) energy levels. From this study, it is apparent that precise control and tuning of the oxidation potential is a necessity, and usually not achieved with most HTMs developed to date for ss-DSSCs. To significantly increase the efficiency of solid-state DSSCs understanding these properties, and implementing dye-HTM combinations to minimize the required HOMO offset is of central importance.
