Efficient CdSe Quantum Dot-Sensitized Solar Cells Prepared by an Improved Successive Ionic Layer Adsorption and Reaction Process

• Published in: Nano letters Vol. 9; no. 12; pp. 4221 - 4227
• Main Authors: Lee, HyoJoong, Wang, Mingkui, Chen, Peter, Gamelin, Daniel R, Zakeeruddin, Shaik M, Grätzel, Michael, Nazeeruddin, Md. K
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 09.12.2009
• Subjects: Adsorption; Applied sciences; Cadmium Compounds - chemistry; Cross-disciplinary physics: materials science; rheology; Crystallization - methods; Electric Power Supplies; Electronics; Energy; Equipment Design; Equipment Failure Analysis; Exact sciences and technology; Ions; Macromolecular Substances - chemistry; Materials science; Materials Testing; Molecular Conformation; Molecular electronics, nanoelectronics; Nanocrystalline materials; Nanoscale materials and structures: fabrication and characterization; Nanostructures - chemistry; Nanostructures - ultrastructure; Nanotechnology - instrumentation; Natural energy; Particle Size; Photovoltaic conversion; Physics; Quantum Dots; Selenium Compounds - chemistry; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Solar cells. Photoelectrochemical cells; Solar Energy; Surface Properties; Solar cells; Voltage measurement; Ethanol; Organic conductors; Quantum dots; Photoelectrochemical cells; Hybrid material; Porous materials; Cobalt; Mesoporosity; Optimization; Transients; Cadmium selenides; Thin films; Redox couple; Organic-inorganic hybrid materials; Adsorption; II-VI semiconductors; Cadmium tellurides; Titanium oxide; Nanostructured materials

In pursuit of efficient quantum dot (QD)-sensitized solar cells based on mesoporous TiO2 photoanodes, a new procedure for preparing selenide (Se2−) was developed and used for depositing CdSe QDs in situ over TiO2 mesopores by the successive ionic layer adsorption and reaction (SILAR) process in etha...