Introducing chenodeoxycholic acid coadsorbent and strong electron-withdrawing group in indoline dyes to design high-performance solar cells: a remarkable theoretical improvement

Abstract

The addition of coadsorbents and the introduction of electron-withdrawing groups in dye sensitizers are considered to be feasible strategies for improving the power conversion efficiency (PCE) of dye-sensitized solar cells...

Computational study of linear carbon chain based organic dyes for dye sensitized solar cells

“…J SC value is one of the crucial factors determining the overall cell efficiency, η , which is related to electrical parameters by the following equation:where I s is the intensity of the incident light, V OC represents the open circuit voltage and depends on the energy difference between the electrolyte redox potential and the Fermi potential of the semiconductor, FF is the fill factor defined as the ratio between the maximum power ( V max · J max ) yielded by the device and the maximum theoretical power ( V OC · J SC ). 73,74 Apparently, the differences in the LHE values listed in Table 3 are very small, as a consequence comparable performance is expected from the whole LCCs series. PY-4S is the dye with lowest value of the series, but it should be emphasized that in the planar it reveals a light-harvesting-efficiency value equal to 0.99, furthermore in view of the free rotation around the C–N bond, as the slight difference in energy between planar and non-planar conformers suggests, a good efficiency can be hypothesized also for this compound as shown in Fig.…”

Study of the microscopic mechanism of stepwise charge injection in co-sensitive DSSCs in the framework of a D–π–A dye and chlorophyll

“…Solar energy has the advantages of a vast source, huge energy, safety, reliability, etc, attracting more scholars to develop and utilize it. [1][2][3][4] The dye-sensitized solar cell (DSSC), one of the third-generation photovoltaic technologies, has experienced long-term development since its first discovery by O'Regan and Grazel in 1991; 5 it has also become an effective candidate for utilizing solar energy due to its advantages of the simple manufacturing process, low cost and light weight, [6][7][8] and its maximum power conversion efficiency (PCE) has reached about 14%. [9][10][11] Currently, improvement in the PCE of DSSCs can be achieved by developing new dyes, electrolytes or counter electrodes because these component factors can affect performance.…”

Theoretical insight into the influence of different molecular design strategies on photovoltaic properties for a series of POM-based dyes applied in dye-sensitized solar cells

“…1 Dye-sensitized solar cells (DSSCs), first reported by the Grätzel group, can convert solar energy into electricity, 2 which has been a hot topic due to their low fabrication cost and high cell performance. 3,4 Currently, a record efficiency of 14% has been achieved by DSSCs cophosensitized with dyes ADEKA-1 and LEG4 , while the efficiency still lags behind that of Si-based solar cells (25%). 5 Panchromatic absorption, tapping the IR region of the sun spectrum along with the entire visible region, is an effective way to improve the power conversion efficiency (PCE) of DSSCs.…”