A new cyclometalated ruthenium complex, [Ru(6'-phenyl-4'-thiophen-2-yl-[2,2']bipyridinyl-4-carboxylic acid)(4,4',4''-tricarboxy- 2,2':6',2''-terpyridine)]Cl, for Dye Sensitized Solar Cells (DSSCs) is proposed. We have investigated the use of cuprous iodide (CuI) as an electrolyte additive, which in turn has shown photocurrent enhancements of more than 25% in our dye based cells. Using an ionic ...

The steady-state photocurrent spectra of Sb2Se3 and Sb2Se3: Sn films in the photon energies ranged from 1 to 2.5 eV for different values of electric field intensity and temperatures were investigated. In the photocurrent spectra the peak near 1.5 eV, caused by the defect band, was revealed. For the amorphous Sb2Se3 thin film samples with tin impurity the intensity of this band is higher. In the...

Recently a uni-traveling carrier photodetector (UTC-PD) with a 3 dB bandwidth beyond 67 GHz was presented [1]. The device shows good performance up to 3 mA of photocurrent but experiences thermal failure (see Fig. 1a) at higher currents due to the poor heat extraction in membrane-type devices. Improvements to the thermal design are proposed that promise to double the possible photocurrent befor...

Ultra-long AlN nanowire arrays are prepared by chemical vapor deposition, and the photoconductive performances of individual nanowires are investigated in our self-built measurement system. Individual ultra-long AlN nanowire (UAN) exhibits a clear photoconductive effect under different excited lights. We attribute the positive photocurrent response of individual UAN to the dominant molecular se...

Enhancement of visible-light photocurrent generation by sol-gel anatase TiO2 films was achieved by binding small polyol molecules to the TiO2 surface. Binding ethylene glycol onto the surface, enhancement factors up to 2.8 were found in visible-light photocurrent generation experiments. Density functional theory calculations identified midgap energy states that emerge as a result of the binding...

As a finite-energy-bandgap alternative to graphene, semiconducting molybdenum disulfide (MoS2) has recently attracted extensive interest for energy and sensor applications. In particular for broad-spectral photodetectors, multilayer MoS2 is more appealing than its monolayer counterpart. However, little is understood regarding the physics underlying the photoresponse of multilayer MoS2. Here, we...

In the manuscript we presented transient photocurrent simulations with rise and decay. Here we analyse the same TPC decay in detail. Figure S1 shows simulation results of the transient photocurrent decay for all cases defined in Table 1 in the manuscript. With a lower mobility (b) the decay is slower because it takes longer until the device is empty. In the case ‘deep traps’ (c) the current sho...

Nanostructured photoanodes were prepared via a novel combination of titanium dioxide (TiO2) nanoparticles and mesoporous carbon (C). Four different photoanodes were synthesized by sol-gel spin coating onto a glassy substrate of fluorine-doped tin oxide. The photocatalytic activities of TiO2, TiO2/C/TiO2, TiO2/C/C/TiO2, and TiO2/C/TiO2/C/TiO2 photoanodes were evaluated by exposing the synthesize...