Effect of Grephene on Separation and Transport Mechanism of Photogenerated Charges
Journal Title: 河南科技大学学报（自然科学版） - Year 2016, Vol 37, Issue 4
Abstract
Based on various mass fractions( 0. 4%,0. 8%,1. 2%,1. 6%,2. 0% and 2. 4%) of reduced graphene oxide( RGO),the composite system of Cu4Bi4S9( CBS) and RGO( CBS-RGO) were synthesized.Then two types of heterojunction Zn2SnO4/ CBS( ZTO / CBS) and ZTO / CBS-RGO( ZTO / CBS-RGO),as well as its bulk heterojunction solar cells were fabricated. For CBS-RGO,the photovoltaic response increased gradually with the mass fractions of RGO from 0. 4% to 1. 6%. Above 1. 6%,the photovoltaic response decreased gradually. The surface photovoltage spectroscopy test results show that ZTO / CBS-RGO exhibits the higher photovoltaic response than ZTO / CBS. Under the positive bias electric field inducing,ZTO / CBS-RGO also presents the higher photovoltaic response than ZTO / CBS. Besides,the highest photoelectric conversion efficiencies of two types of bulk heterojunction solar cells of ZTO / CBS and ZTO / CBS-RGO is 1. 2% and2. 8%,respectively. It is suggested that the composite RGO can improve the separation efficiency of photogenerated charges.
Authors and Affiliations
Taotao ZHAO, Gaofeng ZHAO
Keywords
Related Articles
- EP ID EP477172
- DOI 10.15926/j.cnki.issn1672-6871.2016.04.018
- Views 72
- Downloads 0
Existence of Nontrivial Solution of a Class of p-Laplacian Equation
The existence of nontrivial solutions for a class of p-Laplacian equations was studied via Nehari manifold. Four lemmas were got. Nehari manifold was non empty. On the Nehari manifold,the greatest lower bound of the func...
Basic Mechanical Properties Experiment on Lithium Slag Polypropylene Fiber Reinforced Concrete
In order to study the mechanical properties of polypropylene fiber reinforced concrete containing lithium slag,16 groups of concrete specimens with different replacement rates of lithium slag and different contents of po...
Chromosome Karyotype Analysis of Transgenic Chickens
The effects of exogenous gene p53 on the chromosome of transgenic chickens were investigated. The transgenic roosters with exogenous gene p53 were used as the experimental group,and the same breed with non-transgenic roo...
Stability of SEIR Model with Saturated Incidence Rate
The stability of susceptible-exposed-infectious-recovered( SEIR) model with vertical transmission and saturated incidence rate was discussed,and the effect of vaccination on transmission of infectious disease was conside...
Effects of Sintering Temperature on Properties of Mg/Ta/Li-doped(Na,K)NbO3
The Li(0. 058)( Na(0. 535)K(0. 480))_(0. 942)(Nb(0. 887)Ta(0. 009)Mg(0. 004))O3( LNKNTM) lead-free piezoelectric ceramics were prepared by the traditional solid sintering method in the range from 960 ℃ to 1 060 ℃. The ef...