Charge transport inTiO2/MEH−PPV

Titania bicontinuous network structures for solar cell applications

“…There were several previous reports on the TiO 2 / MEH-PPV heterojunction cells. [5][6][7][8]11 However, in all these reports, the short-circuit current was smaller than 1 mA/ cm 2 . Considerable improvement in the short-circuit current ͑3.3 mA/ cm 2 ͒ was obtained in our work due to a different TiO 2 layer morphology.…”

“…1 In order to eliminate difficulties associated with liquid electrolyte, considerable research is devoted to the development of solid state dye-sensitized solar cells 2 or polymer-TiO 2 -based solar cells. [2][3][4][5][6][7][8][9][10][11][12] In addition to TiO 2 , other oxide materials can be used, such as ZnO. 13 While the power conversion efficiencies of solid state dyesensitized cells can reach ϳ4%, 2 the efficiencies of polymerTiO 2 solar cells are considerably lower, typically below 1% in the absence of electrolyte.…”

“…13 While the power conversion efficiencies of solid state dyesensitized cells can reach ϳ4%, 2 the efficiencies of polymerTiO 2 solar cells are considerably lower, typically below 1% in the absence of electrolyte. [2][3][4][5][6][7][8][9][10][11][12] One of the problems in the development of efficient polymer-TiO 2 cells is incomplete filling of the TiO 2 pores by the hole transport material. 2 In order to control the pore size and morphology of the TiO 2 layer, TiO 2 synthesis methods using block copolymers as structure directing agents were proposed.…”

Synthesis and High-Pressure Study of Corundum-Type In2O3

“…1,2 The most widely studied materials employed for optoelectronic devices that accomplish these properties are several binary oxides like: In 2 O 3 , Ga 2 O 3 , Al 2 O 3 , ZnO, SnO 2 and TiO 2 . [3][4][5] The widespread use of In 2 O 3 in industrial processes covers the fabrication of window layers in solar cells, [6][7][8] light-emitting diodes, 9,10 electrochromic windows, 11 liquid-crystal displays, 12,13 and gas sensors. 14,15 Due to the scarcity and high cost to obtain indium metal, new 3 systems, like Sn-doped In 2 O 3 (ITO) and corundum-type In 2-2x Zn x Sn x O 3 (x ≤ 0.4, or ZITO), have been developed to cut the prize of the production system.…”

Efficient laser textured nanocrystalline silicon-polymer bilayer solar cells

“…1 Interest in organic/inorganic heterojunctions has grown simultaneously with most of the work concentrated on titania based photovoltaics. 2 A small number of reports pertaining to hydrogenated amorphous silicon ͑a-Si: H͒/polymer heterojunction solar cells have been reported. 3,4 However, active participation of the polymer in photocurrent generation has been confirmed only recently.…”