Architectured ZnO photoelectrode for high efficiency quantum dot sensitized solar cells

Abstract

Registered Charity Number 207890Showcasing the research of quantum dot sensitized solar cells from Prof. J. J. Tian's and Prof. G. Z. Cao's lab,

New insight into the enhanced photocatalytic activity of N-, C- and S-doped ZnO photocatalysts

“…With a direct band gap and band edge positions both similar as that of TiO 2 , ZnO demonstrates 10-100 folds higher electron mobility than TiO 2 , and thus reduced electrical resistance and enhanced electron Page 3 of 31 A c c e p t e d M a n u s c r i p t 3 transfer efficiency [25]. Therefore, ZnO has been proven to be a competitive candidate for a wide range of photocatalytic and photoelectrochemical applications [26][27][28][29].…”

Improved charge generation and collection in dye-sensitized solar cells with modified photoanode surface

“…For the modification process, the surface of the ZnO is dissolved in an aqueous solution of (NH 4 ) 2 TiF 6 and H 3 BO 3 while the deposition of TiO 2 occurred [21]. Although this method have been applied in quantum-dots sensitized solar cells (QDSCs), the surface properties of photoanode and the internal photoelectric conversion process of solar cells upon modification have not been studied yet [22]. The effects of passivation layer on charge generation, transfer and collection has been investigated systematically.…”

Controlled growth of Cu3Se2 nanosheets array counter electrode for quantum dots sensitized solar cell through ion exchange

“…With the aforementioned advantages, the theoretical maximum power conversion efficiency (PCE) could reach 44%, exceeding the Shockley-Queisser limit (33.4%) of single junction solar cells [4]. Typically, QDSSC is assembled by a transparent conductive substrate, a quantum dots loaded photoanode film, polysulfide electrolyte and a counter electrode (CE) [5]. As an important part of the photovoltaic device, CE plays a critical role in the electrons transport and oxidation of reduced ions [6], and thus is intensively investigated in recent years.…”