Effect of functional groups of self assembled monolayer molecules on the performance of inverted perovskite solar cell

Molecular engineering‐device efficiency relation: Performance boosting of triboelectric nanogenerator through doping of small molecules

“…The early inflection point of TB with respect to DDA is due to the higher electron donor characteristic of TB than DDA (Figure S2). It is important to note here that in accordance with literature outcomes, present results show that the existence of methyl pairs on the main backbone increases the electron density of molecules as well as reduces the oxidation potential and therefore causes an inflection point at lower potential 36,41‐43 . This is the possible explanation for the 0.15 eV difference between TB and DDA molecules.…”

“…It is important to note here that in accordance with literature outcomes, present results show that the existence of methyl pairs on the main backbone increases the electron density of molecules as well as reduces the oxidation potential and therefore causes an inflection point at lower potential. 36,[41][42][43] This is the possible explanation for the 0.15 eV difference between TB and DDA molecules. Moreover, the present findings are also consistent with the inductive effect phenomenon, which further evaluates the density of electron accumulation in the main molecular body, due to the types of linked hydrocarbon chains since the C-1 carbon atom of side chains in both molecules has the same hybridization (sp [3] ).…”

“…Among all surface parameters, contact angle and surface texture play crucial roles, in which topographical features and wetting behaviors are required to be defined, to evaluate the doping effect of molecules on fiber structures. 35,41,42 Therefore, sessile water droplet measurement was carried out to reveal alters in contact angles of all-fiber surfaces. In the general description, doping of any hydrophobic moieties decreases the surface tension and therefore increases the contact angle.…”

Organic Hole‐Transport Layers for Efficient, Stable, and Scalable Inverted Perovskite Solar Cells

“…[ 189 ] Demic and co‐workers presented five novel SAM‐HTLs to compare the effect of an electron donating and withdrawing terminal group on the performance of inverted PSCs. [ 190 ] Contiguous thiophene rings were utilized as the linker to provide better conjugation. Similarly, the terminal groups have an impact on the work function and wetting ability.…”

A Short Review on Surface‐Confined Monolayers of π‐Conjugated Polymers for Photovoltaics

“…Extensive studies have demonstrated the multifunctionality of organic monolayers in improving energy-level alignment, charge extraction and transport at the interface, morphology of the adjacent active layer, as well as the resulting PV parameters and longterm stability of devices. [67][68][69] However, compared with the widely investigated and documented monolayers of small organic molecules, [70][71][72][73] the study of SCMs based on π-CPs is largely few. In consideration of the importance of CPs in the field of PV and other electronic devices, it is quite necessary and urgent to provide an overview of recent investigations on functional monolayers based on CPs.…”