Enhanced performance of CdTe quantum dot sensitized solar cell via anion exchanges

Tailoring band structure of ternary CdS Se1− quantum dots for highly efficient sensitized solar cells

“…Inorganic semiconductor quantum dot-sensitized solar cells (QDSCs) with rapid enhanced power conversion efficiency recently have received revitalized attention as third generation photovoltaic cells due to the versatile advantages of quantum dots (QDs) compared to the conventional dye sensitizers, such as tunable bandgap by controlling their size, large extinction coefficient, multi-excition generation, and high stability toward water and oxygen [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. A theoretical power conversion efficiency (PCE) up to 44%, beyond the traditional Shockley and Queisser limit of 32% for semiconductor solar cells, has encouraged researchers to develop QDSCs with the use of a variety of QDs as sensitizers for light harvesting, including CdS [13], CdSe [14], CdTe [16], PbS [17], PbSe [18], etc. Compared to the metal halide perovskites as light harvesters, which have stunned the photovoltaic community with a PCE exceeding 20% but suffered from moisture-sensitive nature, inorganic QDs show impressive stability to ambient conditions [1].…”

Numerical analysis of degradation kinetics in CdTe thin films

“…This condition is not limited to CdTe thin films is known that defect creation/increment alters the film morphology and structure of the active region in dye sensitized solar cells (DSSCs) (Shen et al, 2015). Drastic degradation of DSSCs is a critical problem in their large production although they own quite an environment friendly nature (Bella et al, 2015;Huang et al, 2014).…”

Synthesis of Low‐Viscosity Ionic Liquids for Application in Dye‐Sensitized Solar Cells

“…As Figure b shown, the R ct2 values are decreased with increasing the content of the two additives, indicating that the charge recombination is suppressed, while the electrons injection from dyes to the conduction band of TiO 2 is increased. This is attributed to the adsorbent guanidinium cation on the TiO 2 surface that favorable to increase electron injection from dyes to TiO 2 …”