Trilaminar ZnO/ZnS/Sb₂S₃ nanotube arrays for efficient inorganic-organic hybrid solar cells

TY - JOUR

T1 - Trilaminar ZnO/ZnS/Sb2S3 nanotube arrays for efficient inorganic-organic hybrid solar cells

AU - Han, Jianhua

AU - Liu, Zhifeng

AU - Zheng, Xuerong

AU - Guo, Keying

AU - Zhang, Xueqi

AU - Hong, Tiantian

AU - Wang, Bo

AU - Liu, Junqi

PY - 2014

Y1 - 2014

N2 - Efficient hybrid solid-state solar cells based on novel trilaminar ZnO/ZnS/Sb2S3 nanotube arrays (NTs) and poly(3-hexylthiophene) (P3HT) are fabricated by using a buffer layer using ZnS and surface modification using a sensitizer layer (Sb2S3). Vertically aligned trilaminar ZnO/ZnS/Sb2S3 nanotube arrays (NTs) were directly grown on an indium-doped tin oxide (ITO) substrate via a low-cost hydrothermal chemical conversion method based on ion exchange, which is easy to be manipulated and can form uniform structures without destroying the original morphology. The ZnO/ZnS/Sb2S3/P3HT hybrid solar cell exhibited an improved short-circuit current density (J sc) of 5.57 mA cm-2, open-circuit voltage (Voc) of 440 mV, giving rise to a power conversion efficiency of 1.32%. The trilaminar architecture is able to suppress carrier recombination and increase electron collection efficiency via (i) increasing photon absorption through a sensitizer layer (Sb2S3), (ii) forming a buffer layer (ZnS) on the surface of ZnO NTs in the chemical conversion process and (iii) a better energy level alignment in the ZnO/ZnS/Sb2S3/P3HT.

AB - Efficient hybrid solid-state solar cells based on novel trilaminar ZnO/ZnS/Sb2S3 nanotube arrays (NTs) and poly(3-hexylthiophene) (P3HT) are fabricated by using a buffer layer using ZnS and surface modification using a sensitizer layer (Sb2S3). Vertically aligned trilaminar ZnO/ZnS/Sb2S3 nanotube arrays (NTs) were directly grown on an indium-doped tin oxide (ITO) substrate via a low-cost hydrothermal chemical conversion method based on ion exchange, which is easy to be manipulated and can form uniform structures without destroying the original morphology. The ZnO/ZnS/Sb2S3/P3HT hybrid solar cell exhibited an improved short-circuit current density (J sc) of 5.57 mA cm-2, open-circuit voltage (Voc) of 440 mV, giving rise to a power conversion efficiency of 1.32%. The trilaminar architecture is able to suppress carrier recombination and increase electron collection efficiency via (i) increasing photon absorption through a sensitizer layer (Sb2S3), (ii) forming a buffer layer (ZnS) on the surface of ZnO NTs in the chemical conversion process and (iii) a better energy level alignment in the ZnO/ZnS/Sb2S3/P3HT.

UR - http://www.scopus.com/inward/record.url?scp=84902481657&partnerID=8YFLogxK

U2 - 10.1039/c4ra02554g

DO - 10.1039/c4ra02554g

M3 - 文章

AN - SCOPUS:84902481657

SN - 2046-2069

VL - 4

SP - 23807

EP - 23814

JO - RSC Advances

JF - RSC Advances

IS - 45

ER -