Doped SnO2 nanoparticles for solar-cell application

Leung, Tik Lun1; Liu, Fangzhou1; Tam, Ho Won1; Chen, Wei1; Ng, Alan Man Ching2; Djurisic, Aleksandra B.1; Chan, Wai-Kin3

10.1117/12.2509463

2019

0277-786X

1996-756X

OXIDE-BASED MATERIALS AND DEVICES X

10919

San Francisco, CA, United states

1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA

SPIE-INT SOC OPTICAL ENGINEERING

Since conventional TiO2 electron transporting layer (ETL) can accelerate the degradation of organic lead halide perovskite solar cells, alternative ETL is required for PSCs with extended lifetime. In this work, SnO2 nanoparticles, a potential ETL material, were synthesized via facile sol-gel method. Different dopants were introduced in an attempt to enhance conductivity and improve electronic properties of pristine SnO2. The prepared nanoparticles were identified to be rutile SnO2 phase with crystalline size less than 4 nm. The presence of the dopant in the doped samples was confirmed by energy dispersive X-ray spectroscopy, and it is also evident from the colour change of the doped samples compared to undoped one. While the dopant incorporation has been successful, nanoparticles exhibited pronounced aggregation in water dispersions, which prevented preparation of sufficiently smooth films for application in planar perovskite solar cells. Further optimization of the nanoparticle surfaces is needed to obtain dispersions suitable for spin-coating uniform thin films of doped SnO2.

Tin(IV) oxide ESL Low temperature process Perovskite solar cell

其他

英语

CPCI-S ; EI

Shenzhen Science and Technology Commission[JCYJ20160530184523244]

Materials Science ; Optics ; Physics

Materials Science, Multidisciplinary ; Optics ; Physics, Applied

WOS:000485095300032

20192106949243

Electronic properties ; Energy dispersive spectroscopy ; Film preparation ; Lead compounds ; Nanoparticles ; Perovskite ; Perovskite solar cells ; Sol-gel process ; Sol-gels ; Synthesis (chemical) ; Temperature ; Tin oxides ; Titanium dioxide

Minerals:482.2 ; Thermodynamics:641.1 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Glass:812.3 ; Solid State Physics:933

Web of Science

1.Univ Hong Kong, Dept Phys, Hong Kong, Peoples R China
2.Southern Univ Sci & Technol, Shenzhen, Peoples R China
3.Univ Hong Kong, Dept Chem, Hong Kong, Peoples R China

Leung, Tik Lun,Liu, Fangzhou,Tam, Ho Won,et al. Doped SnO2 nanoparticles for solar-cell application[C]. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2019.