Improved Photocurrent of a Poly (3,4-ethylenedioxythiophene)-ClO4–/TiO2 Thin Film-modified Counter Electrode for Dye-sensitized Solar Cells

A review on PEDOT-based counter electrodes for dye-sensitized solar cells

“…Sakurai et al . introduced a TiO 2 intermediate layer between PEDOT‐ClO 4 − and an FTO glass to fabricate a CE for a DSSC, which increased the catalytic surface area and enhanced electron transfer . As a result, the PCE of the DSSC increased from 3.85 to 4.55%.…”

“…Furthermore, this breakthrough has established the state‐of‐the‐art DSSCs for two decades: a dye‐sensitized nanocrystalline TiO 2 film as a photoanode, redox (in a nonaqueous solvent) as electrolyte, and Pt as an efficient counter electrode (CE). This has promoted intensive research on DSSCs .…”

“…Therefore, it is necessary to develop Pt-free CEs for DSSCs. Various materials have been explored as potential alternatives to Pt, including carbon [8][9][10][11][12][13][14][15], metal oxides [16][17][18], transition metal sulfides [19][20][21][22], nitrides [23][24][25][26][27][28], and carbides [29,30]. Among those inorganic materials, carbon (such as graphene) and metal sulfides, which possess electrical conductivity and catalytic activity, can be directly exploited as DSSC CEs [4, [19][20][21][22].…”

Three dimensional PEDOT nanowires network

“…In the case of intrinsically conducting polymers (ICP), nanostructuration plays an important role. Usually, ICP are semiconductors and have been used in the development of many electronic devices such as solar cells [12], transistors [13], thermoelectric modules [14][15][16], organic light emitting diodes [17] and supercapacitors [18][19][20]. A well defined 3D network of nanowires can be the key in the next generation of electrodes for supercapacitors applications.…”

Thermal sensor based on a polymer nanofilm

“…Especially, energy applications have become in the focus of a large number of studies related to organic materials [4,5,2,6,7,8]. Focusing on their repercussions on nowadays society, it can be highlighted the use of these materials in solar cells [8,9], supercapacitors [2,6,7] and thermoelectric devices [4,5,10]. The use of organic materials such as conductive polymers entails numerous advantages over traditional inorganic semiconductors.…”