Anthracene‐Bridged Sensitizers for Dye‐Sensitized Solar Cells with 37% Efficiency under Dim Light (Adv. Energy Mater. 20/2022)

Visible‐Light‐Active Unsymmetrical Squaraine Dyes with 1 V of Open‐Circuit Voltage for Dye‐Sensitized Solar Cells

“…The potential of sensitizers to harvest light and convert it into the electricity with high device performance in dye‐sensitized solar cells (DSSCs) makes this third generation solar technology more attractive [1,2] . Tunable spectral properties of light harvesting materials, low‐cost device fabrication and working in the diffused light conditions are the salient features of the DSSCs compared to the first two generation solar cells [3,4] . In DSSCs, both organic and inorganic sensitizers have the potential to generate high device efficiency by harvesting the photons in visible and near‐IR regions [3,5] .…”

“…Benztricarbazole (BTC) electron donor based dyes showed more than 1 V of V OC with the Cu(I/II) electrolyte [40] (Figure 1). Further, DSSC device performance more than 30 % under low light condition open avenues for utilizing this technology in building integrated photovoltaic (BIPV) and internet of things (IoT) applications [41] . Besides the other sensitizers, D−A−D based squaraine dyes are very attractive because these chromophores possess high extinction coefficient in the order of 10 5 M −1 cm −1 and forms aggregated structures on the semiconducting metal oxide surface [42–46] …”

P3HT vs Spiro-OMeTAD as a hole transport layer for halide perovskite indoor photovoltaics and self-powering of motion sensors

“…However, the high fabrication cost of III-V materials hinders their further application for the PV industry, especially for wide-area devices [2,13]. Superior efficiencies have been achieved by the solution-based PVs: dye-sensitized solar cells (DSSC)), organic photovoltaics (OPV) and halide perovskites [14][15][16][17][18]. Recently Lee et al have demonstrated a PCE of 30% under 500 lux LED illumination for the OPVs [14].…”

“…Recently Lee et al have demonstrated a PCE of 30% under 500 lux LED illumination for the OPVs [14]. DSSCs with 25% PCE under 900 lux fluorescence lamp illumination were also recently reported [18]. However, the limited selection of dye and liquid electrolytes are the remaining problems to improve the stability and reduce the fabrication cost for DSSC [19].…”

Emerging indoor photovoltaics for self-powered and self-aware IoT towards sustainable energy management

“…In the last couple of years, several emerging photovoltaic technologies showed promise for indoor applications, including amorphous silicon, organic photovoltaics, colloidal quantum dots, perovskite solar cells and dye-sensitised solar cells all reaching indoor photovoltaic efficiencies around or above 30%. [18][19][20][21][22][23] Notably, there are currently no standardised methods for assessing the efficiency of indoor light to power conversion, though we do adhere to several standard measures, such as reporting the light source, light source spectrum, light intensity at the photovoltaic, as well as characterisation at various light intensities categorised for indoor environments. 11 The most-efficient ambient photovoltaic technology is the dye-sensitised solar cell (DSC), as its photoresponse is precisely tunable to most ambient settings by selecting from a broad library of molecular dyes.…”