Study on the Fabrication of Paint-Type Si Quantum Dot-Sensitized Solar Cells

Abstract

Quantum dots (QDs) have attracted much attention with their quantum characteristics in the research field of photochemical solar cells. Si QD was introduced as one of alternatives to conventional QD materials. However, their large particles could not penetrate inside TiO2 layer. Therefore, this work proposed the paint-type Si QD-sensitized solar cell. Its heat durability was suitable for the fabrication of paint-type solar cell. Si QDs were fabricated by multihollow discharge plasma chemical vapor deposition and characterized. The paste type, sintering temperature, and Si ratio were controlled and analyzed for better performance. Finally, its performance was enhanced by ZnS surface modification and the whole process was much simplified without sensitizing process.

Gas‐Phase Plasma Synthesis of Free‐Standing Silicon Nanoparticles for Future Energy Applications

“…The Shiratani group have also studied the effect of adsorbance of Si‐NPs to nano‐porous TiO 2 on the performance of paint‐type Si‐NP sensitized TiO 2 ‐based solar cells . They reported that low level of adsorbance of Si‐NPs to TiO 2 is a cause of low performance.…”

Progress in photovoltaic performance of organic/inorganic hybrid solar cell based on optimal resistive Si and solvent modified poly(3,4‐ethylenedioxythiophene) poly(styrenesulfonate) junction

“…To realize third generation solar cells, photovoltaic researches need to break the concept and classification of conventional photovoltaics. Quantum dot solar cells based on multiple exciton generation, light concentrating solar cells, and advanced thin film solar cells are included in this area . Organic/inorganic hybrid solar cell is also attracting considerable attention as one of promising third generation solar cells .…”

“…Quantum dot solar cells based on multiple exciton generation, light concentrating solar cells, and advanced thin film solar cells are included in this area. [13][14][15][16] Organic/ inorganic hybrid solar cell is also attracting considerable attention as one of promising third generation solar cells. [17][18][19][20][21][22] Organic solar cell is advantageous for low-cost device, but its performance is still low due to low charge mobility and short lifetime of organic materials.…”

Enhanced photoelectrochemical water splitting from Si quantum dots/TiO2 nanotube arrays composite electrodes

“…Recently, Si QDs have been realized as one of ideal materials because they have the features of abundance, non-toxicity and applications in quantum dots-sensitized solar cells [32][33][34][35][36]. The unique characteristics such as hot carriers, intermediate band, and multiple exciton generation of Si QDs [32,34] are expected to increase the quantum yield and extend the light absorption of TiO 2 thus enhancing the performance [36].…”

“…The unique characteristics such as hot carriers, intermediate band, and multiple exciton generation of Si QDs [32,34] are expected to increase the quantum yield and extend the light absorption of TiO 2 thus enhancing the performance [36].…”