Sb_(2)S_(3)/石墨烯负极材料的制备及其储钠性能研究

钠离子电池(sodium-ion batteries,SIBs)具有成本低的潜在优势,有望成为替代锂离子电池(lithium ion batteries,LIBs)的储能设备。为提升钠离子电池的性能,开发出适应钠离子脱嵌的负极材料尤为重要。硫化锑(Sb_(2)S_(3))因其理论比容量高被认为是较好的钠离子电池负极材料。本文使用简单水热法将Sb_(2)S_(3)与石墨烯复合,制备Sb_(2)S_(3)/石墨烯复合材料(Sb_(2)S_(3)/Gr)。结果表明:Sb_(2)S_(3)/Gr作为钠离子电池负极时,不仅表现出良好的电导率(3.5×10~(-3)S/cm)和钠离子扩散速率(4.853×10~(-13)cm~2/s),而且在0.5 A/g的电流密度下,首圈库伦效率为76.27%,经150次循环后的比容量稳定在488 m A·h/g,表现出较高的比容量。Sb_(2)S_(3)/Gr复合材料表现出了极大的应用潜力,为高性能钠离子电池负极材料的研发提供了一定的参考价值。

Interface optimization and defects suppression via Na F introduction enable efficient flexible Sb_(2)Se_(3) thin-film solar cells

Sb_(2)Se_(3) with unique one-dimensional(1D) crystal structure exhibits exceptional deformation tolerance,demonstrating great application potential in flexible devices.However,the power conversion efficiency(PCE) of flexible Sb_(2)Se_(3) photovoltaic devices is temporarily limited by the complicated intrinsic defects and the undesirable contact interfaces.Herein,a high-quality Sb_(2)Se_(3) absorber layer with large crystal grains and benign [hkl] growth orientation can be first prepared on a Mo foil substrate.Then NaF intermediate layer is introduced between Mo and Sb_(2)Se_(3),which can further optimize the growth of Sb_(2)Se_(3)thin film.Moreover,positive Na ion diffusion enables it to dramatically lower barrier height at the back contact interface and passivate harmful defects at both bulk and heterojunction.As a result,the champion substrate structured Mo-foil/Mo/NaF/Sb_(2)Se_(3)/CdS/ITO/Ag flexible thin-film solar cell delivers an obviously higher efficiency of 8.03% and a record open-circuit voltage(V_(OC)) of 0.492 V.This flexible Sb_(2)Se_(3) device also exhibits excellent stability and flexibility to stand large bending radius and multiple bending times,as well as superior weak light photo-response with derived efficiency of 12.60%.This work presents an effective strategy to enhance the flexible Sb_(2)Se_(3) device performance and expand its potential photovoltaic applications.

Manipulating the morphology of CdS/Sb_(2)S_(3) heterojunction using a Mg-doped tin oxide buffer layer for highly efficient solar cells

Antimony sulfide(Sb_(2)S_(3))is an appealing semiconductor as light absorber for solar cells due to its high absorption coefficient,appropriate band gap(~1.7 e V)and abundance of constituent elements.However,power conversion efficiency(PCE)of Sb_(2)S_(3)-based solar cells still lags much behind the theoretically predicted due to the imperfect energy level alignment at the charge transporting layer/Sb_(2)S_(3)interfaces and hence severe charge recombination.Herein,we insert a high-temperature sintered magnesium(Mg)-doped tin oxide(SnO_(2))layer between cadmium sulfide(Cd S)and fuorine doped tin oxide to form a cascaded energy level alignment and thus mitigate interfacial charge recombination.Simultaneously,the inserted Mg-doped Sn O_(2)buffer layer facilitates the growth of the neibouring Cd S film with orientation followed by Sb_(2)S_(3)film with larger grains and fewer pinholes.Consequently,the resultant Sb_(2)S_(3)solar cells with Mg-doped SnO_(2)deliver a champion PCE of 6.31%,22.8%higher than those without a buffer layer.Our work demonstrates that deliberate absorber growth as well as efficient hole blocking upon an appropriate buffer layer is viable in obtaining solution-processed Sb_(2)S_(3)solar cells with high performance.

N-掺杂碳纤维复合Sb_(2)S_(3)柔性电极材料的制备及其性能研究

通过探索一系列静电纺丝-硫化-煅烧等工艺参数,制备了N-掺杂碳纤维复合Sb_(2)S_(3)柔性电极材料(Sb_(2)S_(3)/NC),并采用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X-射线光电子能谱(XPS)等对样品的晶体结构、微观形貌及化学组成等进行了表征.制备的Sb_(2)S_(3)/NC纳米纤维具有优异的机械柔性和独特的复合结构.30 nm大小的Sb_(2)S_(3)纳米粒子相互连接成串珠状形貌,均匀地分散在N-掺杂碳纳米纤维中,有利于提高电子/离子的传输速率和电极材料的循环稳定性.Sb_(2)S_(3)/NC作为负极材料直接组装成的钠离子电池显示出优异的电化学性能,电流密度0.1和2.0 A g^(-1)下,比容量分别达到476.5和266.2 mAh g^(-1),0.1 A g^(-1)下循环280次后比容量保持为466.3 mAh g^(-1).

Sb_(2)S_(3) nanorods/porous-carbon composite from natural stibnite ore as high-performance anode for lithium-ion batteries

To avoid the high purity reagents and high energy consumption involved in the manufacturing of lithium-ion battery anode materials,Sb_(2)S_(3) nanorods/porous-carbon anode was prepared by remodeling natural stibnite ore with porous carbon matrix via a simple melting method.Due to the nanostructure of Sb_(2)S_(3) nanorods and synergistic effect of porous carbon,the Sb_(2)S_(3) nanorods/porous-carbon anode achieved high cyclic performance of 530.3 mA·h/g at a current density of 100 mA/g after 150 cycles,and exhibited a reversible capacity of 130.6 mA·h/g at a high current density of 5000 mA/g for 320 cycles.This shows a great possibility of utilizing Sb_(2)S_(3) ore as raw material to fabricate promising anodes for advanced lithium-ion batteries.

Interfacial coupling effects in g-C_(3)N_(4)/In_(x)Sb_(2-x)S_(3) heterojunction for enhanced photocatalytic activity under visible light

A series of In_(x)Sb_(2-x)S_(3) nanosheets modified g-C_(3)N_(4)(In_(x)Sb_(2-x)S_(3)-TCN)heterojunctions with different g-C_(3)N_(4) contents were fabricated by an in situ deposition method.All the In_(x)Sb_(2-x)S_(3)-TCN composites were applied as photocatalysts in Cr(Ⅵ)polluted water treatment and the results displayed that In_(x)Sb_(2-x)S_(3)-TCN could effectively remove Cr(Ⅵ)under visible light through synergistic effects of adsorption and photocatalytic reduction.Especially,In_(x)Sb_(2-x)S_(3)-TCN-70(70 mg g-C_(3)N_(4)) exhibited the most excellent adsorption and photocatalytic reduction performance among all composites,which possessed a high equilibrium adsorption capacity of 12.45 mg/g in a 30.0 mg/L Cr(Ⅵ)aqueous solution,and reduced Cr(Ⅵ)to Cr(Ⅲ)within 10 min under visible light irradiation.DRS and PL results indicated that the interfacial coupling effect between g-C_(3)N_(4)and In_(x)Sb_(2-x)S_(3) enhanced the utilization efficiency of visible light and suppressed photoinduced carrier recombination,which improved the photocatalytic activity of composites.Moreover,the photocatalyst exhibited satisfactory reduction activity and good stability after 5 cycles of Cr(Ⅵ)adsorptionphotoreduction.

Sb_(2)S_(3):P3HT共混物改善TiO_(2)纳米棒阵列钙钛矿太阳电池的性能

为解决钙钛矿太阳电池中MAPbI_(3)的不稳定性问题,提高电池性能,对以TiO_(2)纳米棒阵列作为电子传输层、Sb_(2)S_(3):P3HT共混物作为钙钛矿MAPbI_(3)修饰层的太阳电池进行了研究。首先,以SbCl_(3)作为锑源,Na_(2)S_(2)O_(3)作为硫源,采用溶剂热法制备合适尺寸的Sb_(2)S_(3)纳米球;其次,通过超声分散法将Sb_(2)S_(3)与P3HT在氯苯溶液中共混得到Sb_(2)S_(3):P3HT共混物,将其旋涂于沉积了MAPbI_(3)薄膜的TiO_(2)纳米棒阵列上,形成FTO/TiO_(2)NR/MAPbI_(3)/Sb_(2)S_(3):P3HT复合膜,制备成TiO_(2)纳米棒阵列MAPbI_(3)/Sb_(2)S_(3):P3HT太阳电池;最后,采用SEM,XRD,J-V曲线和紫外可见吸收光谱等方法进行表征和测试。结果表明,制备的结构为FTO/TiO_(2)NR/MAPbI_(3)/Sb_(2)S_(3):P3HT/Spiro-OMeTAD/Ag的太阳电池,能量转换效率(PCE)最高达到了14.73%,与未采用Sb_(2)S_(3):P3HT共混物修饰的TiO_(2)纳米棒阵列MAPbI_(3)太阳电池相比,能量转换效率得到了明显提升。因此,Sb_(2)S_(3):P3HT共混物能避免出现钙钛矿MAPbI_(3)被氧化的不稳定性问题,可有效提高TiO_(2)纳米棒阵列MAPbI_(3)太阳电池的性能。

不同熔盐体系中Sb_(2)S_(3)一步电还原脱硫

对NaCl-KCl、NaCl-CaCl_(2)、NaCl-Na_(2)CO_(3)、NaCl-KCl-CaCl_(2)和NaCl-KCl-Na_(2)CO_(3)熔盐体系开展比较分析,研究不同熔盐体系的相图、热稳定性和硫化锑的溶解度。根据锑元素分布特征、电流效率、能耗及熔渣成分表征结果,优选出适合Sb_(2)S_(3)电解还原的熔盐体系。结果表明,所有熔盐体系均具有良好热稳定性,且可实现Sb_(2)S_(3)的电解还原。添加CaCl_(2)的体系不利于Sb_(2)S_(3)溶解,而添加Na_(2)CO_(3)的体系会与Sb_(2)S_(3)发生反应。此外,NaCl-KCl体系的电流效率最高(75.68%),且能耗最低(2.18 k W·h/kg)。

Glass formation and physical properties of Sb_(2)S_(3)–CuI chalcogenide system

Novel chalcogenide glasses of pseudo-binary(100-x)Sb_(2)S_(3-x)CuI systems were synthesized by traditional meltquenching method.The glass-forming region of Sb_(2)S_(3)-CuI system was determined ranging from x=30 mol% to 40 mol%.CuI acts as a non-bridging modifier to form appropriate amount of [SbSI] structural units for improving the glass-forming ability of Sb_(2)S_(3).Particularly,as-prepared glassy sample is able to transmit light beyond 14 μm,which is the wider transparency region than most sulfide glasses.Their physical properties,including Vickers hardness(Hv),density(ρ),and ionic conductivity(σ) were characterized and analyzed with the compositional-dependent Raman spectra.These experimental results would provide useful knowledge for the development of novel multi-spectral optical materials and glassy electrolytes.

Enhanced efficiency of the Sb_(2)Se_(3)thin-film solar cell by the anode passivation using an organic small molecular of TCTA

Antimony selenide(Sb_(2)Se_(3))is an emerging solar cell material.Here,we demonstrate that an organic small molecule of 4,4',4''-tris(carbazol-9-yl)-triphenylamine(TCTA)can efficiently passivate the anode interface of the Sb_(2)Se_(3)solar cell.We fabricated the device by the vacuum thermal evaporation,and took ITO/TCTA(3.0 nm)/Sb_(2)Se_(3)(50 nm)/C60(5.0 nm)/Alq3(3.0 nm)/Al as the device architecture,where Alq3 is the tris(8-hydroxyquinolinato)aluminum.By introducing a TCTA layer,the open-circuit voltage is raised from 0.36 to 0.42 V,and the power conversion efficiency is significantly improved from 3.2%to 4.3%.The TCTA layer not only inhibits the chemical reaction between the ITO and Sb_(2)Se_(3)during the annealing process but it also blocks the electron diffusion from Sb_(2)Se_(3)to ITO anode.The enhanced performance is mainly attributed to the suppression of the charge recombination at the anode interface.

Interpenetrating structure for efficient Sb_(2)Se_(3) nanorod array solar cells loaded with CuInSe_(2) QDs sensitizer

The strong anisotropic electrical properties of one-dimensional(1 D) nanostructure semiconductors,especially the anisotropic carrier transport, have a negative and significant influence on the performance of solar cells if the nanostructures have random orientation. Considering the advantages of nanorod solar cells in carrier transport, we have achieved growth of vertically aligned Sb_(2)Se_(3) nanorod array with highly(hk1) orientation on Cd S substrate, and constructed superstrate nanorod solar cells for the first time. The Sb_(2)Se_(3) nanorod array solar cells exhibit the more efficient and long-range carrier transport in vertical direction. Furthermore, in order to suppress interface recombination, a CuInSe_(2) quantum dots(QDs) sensitizer has been applied to fill the volume between the nanorods completely, thus forming an interpenetrating nanocomposite structure. The CuInSe_(2) QDs can harvest additional light by absorption of visible light and contribute photocurrent. Meantime, the QDs function as a hole transport material and thus reduce the dependence of lateral transport. Consequently, the interpenetrating nanocomposite CuInSe_(2) / Sb_(2)Se_(3) solar cells display a power conversion efficiency of 7.54% with significant enhancements in the short-circuit current density and open-circuit voltage over pure Sb_(2)Se_(3) nanorod cells. This is the highest efficiency for superstrate solar cells based on Sb_(2)Se_(3) nanorod arrays.

Double interface modification promotes efficient Sb2Se3 solar cell by tailoring band alignment and light harvest

The band alignment at the front interfaces is crucial for the performance of Sb_(2)Se_(3) solar cell with superstrate configuration.Herein,a Sn O_(2)/Ti O_(2) thin film,demonstrated beneficial for carrier transport in Sb_(2)Se_(3) device by the first-principle calculation and experiment,is proposed to reduce the parasitic absorption caused by CdS and optimize the band alignment of Sb_(2)Se_(3) solar cell.Thanks to the desirable transmittance of SnO_(2)/TiO_(2) layer,the Sb_(2)Se_(3) solar cell with SnO_(2)/TiO_(2)/(CdS-38 nm) electron transport layer performances better than (CdS-70 nm)/Sb_(2)Se_(3) solar cell.The optimized band alignment,the reduced interface defects and the decreased current leakage of Sb_(2)Se_(3) solar cell enable the short-circuit current density,fill factor,open-circuit voltage and efficiency of the Sb_(2)Se_(3) solar cell increase by 26.7%,112%,33.1%and 250%respectively when comparing with TiO_(2)/Sb_(2)Se_(3) solar cell without modification.Finally,an easily prepared Sn O_(2)/Ti O_(2)/CdS ETL is successfully applied on Sb_(2)Se_(3) solar cell by the first time and contributes to the best efficiency of 7.0%in this work,which is remarkable for Sb_(2)Se_(3) solar cells free of hole transporting materials and toxic CdCl_(2) treatment.This work is expected to provide a valuable reference for future ETL design and band alignment for Sb_(2)Se_(3) solar cell and other optoelectronic devices.

8.2%-Efficiency hydrothermal Sb_(2)S_(3)thin film solar cells by two-step RTP annealing strategy

Antimony sulfide(Sb_(2)S_(3))solar cells fabricated via hydrothermal deposition have attracted widespread attention.The annealing crystallization process plays a crucial role in achieving optimal crystallinity in hydrothermal Sb_(2)S_(3)thin films.Nevertheless,incomplete crystallization and the loss of sulfur at high-temperature contribute to defect recombination,constraining device performance.Herein,a twostep rapid thermal processing(RTP)annealing strategy is proposed to improve the crystal quality and efficiency of Sb_(2)S_(3)solar cells.The annealing process in Ar protection with atmospheric pressure can suppress S loss caused by saturated vapor pressure.The two-step RTP annealing with the 330℃ low-temperature and 370℃ high-temperature process ensures high crystallinity and vertical orientations of Sb_(2)S_(3)thin films,accompanied by a reduction in defect concentration from 1.01×10^(12)to 5.97×10^(11)cm^(-3).The Sb_(2)S_(3)solar cell achieves an efficiency of 8.20%with an enhanced open circuit voltage(VOC)of 784 mV.The build-in voltage(Vbi)of 1.17 V and irradiation-dependent ideal factor(n)of 1.48 demonstrate enhanced heterojunction quality and suppressed defect recombination in the devices.The presented two-step annealing strategy and physical mechanism study will open new prospects for high-performance Sb_(2)S_(3)solar cells.

Oriented Organization of Poly(3-Hexylthiophene)for Efficient and Stable Antimony Sulfide Solar Cells

Poly(3-hexylthiophene)(P3HT),as a traditional organic hole-transporting material(HTM),is widely used in thin-film solar cells due to its high charge mobility and good thermal stability.However,the P3HT films obtained by the traditional method are amorphous,which is unfavorable to hole extraction and transport.Here,a low-toxicity solvent 1,2,4-trimethylbenzene(TMB)was used as the solvent instead of the commonly used halogen solvent chlorobenzene(CB)to dissolve P3HT.Thus,the self-assembled nanofibrous P3HT film was prepared and applied as HTM in the newly emerged Sb_(2)S_(3)solar cells.According to the density functional theory calculations,the interface contact between TMB-P3HT and Sb_(2)S_(3)was enhanced via the bonding interaction of S in P3HT and Sb in Sb_(2)S_(3).Through transient absorption spectroscopy characterization,the enhanced interface contact improves the charge extraction ability of TMB-P3HT when compared to the CB-P3HT film.Thus,the TMB-P3HT-based Sb_(2)S_(3)solar cell delivers a power conversion efficiency of 6.21%,which is 9.7%higher than that of the CB-P3HT-based device.Furthermore,the dopant-free TMB-P3HT-based Sb_(2)S_(3)devices exhibit excellent environmental stability compared with Spiro-OMeTAD-based devices.This work demonstrates that the application of P3HT and the solvent engineering of HTM are applicable strategies for developing Sb_(2)S_(3)solar cells with high efficiency and stability.

Double-confined nanoheterostructure Sb/Sb_(2)S_(3)@Ti_(3)C_(2)T_(x)@C toward ultra-stable Li-/Na-ion batteries

Antimony-based materials with high capacities and moderate potentials are promising anodes for lithium-/-sodium-ion batteries.However,their tremendous volume expansion and inferior conductivity lead to poor structural stability and sluggish reaction kinetics.Herein,a doubleconfined nanoheterostructure Sb/Sb_(2)S_(3)@Ti_(3)C_(2)T_(x)@C has been fabricated through a solvothermal method followed by low-temperature heat treatment.The dual protection of“MXene”and“carbon”can better accommodate the volume expansion of Sb/Sb_(2)S_(3).The strong covalent bond(Ti-S,Ti-O-Sb,C-O-Sb)can firmly integrate Sb-based material with Ti_(3)C_(2)T_(x)and carbon,which significantly improves the structure stability.In addition,the carbon layer can restrain the oxidation of MXenes,and the nano-Sb/Sb_(2)S_(3)can facilitate electron/ion transport and suppress the restacking of MXenes.The heterogeneous interface between Sb and Sb_(2)S_(3)can further promote interfacial charge transfer.The MXene-Sb/Sb_(2)S_(3)@C-1 with the optimal Sb content shows high specific capacities,comparable rate properties and ultra-stable cycling performances(250 m Ah·g^(-1)after 2500 cycles at 1 A·g^(-1)for sodium-ion batteries).Ex situ X-ray diffractometer(XRD)test reveals the storage mechanism including the conversion and alloying process of MXene-Sb/Sb_(2)S_(3)@C-1.Cyclic voltammetry(CV)test results demonstrate that the pseudocapacitance behavior is dominant in MXene-Sb/Sb_(2)S_(3)@C-1,especially at large current.This design paves the way for exploring high-performance alloy-based/conversion-type anode for energy storage devices.

Effect of substrate temperature and oxygen plasma treatment on the properties of magnetron-sputtered CdS for solar cell applications

Cadmium sulfide(CdS)is an n-type semiconductor with excellent electrical conductivity that is widely used as an electron transport material(ETM)in solar cells.At present,numerous methods for preparing CdS thin films have emerged,among which magnetron sputtering(MS)is one of the most commonly used vacuum techniques.For this type of technique,the substrate temperature is one of the key deposition parameters that affects the interfacial properties between the target film and substrate,determining the specific growth habits of the films.Herein,the effect of substrate temperature on the microstructure and electrical properties of magnetron-sputtered CdS(MS-CdS)films was studied and applied for the first time in hydrothermally deposited antimony selenosulfide(Sb_(2)(S,Se)_(3))solar cells.Adjusting the substrate temperature not only results in the design of the flat and dense film with enhanced crystallinity but also leads to the formation of an energy level arrangement with a Sb_(2)(S,Se)_(3)layer that is more favorable for electron transfer.In addition,we developed an oxygen plasma treatment for CdS,reducing the parasitic absorption of the device and resulting in an increase in the short-circuit current density of the solar cell.This study demonstrates the feasibility of MS-CdS in the fabrication of hydrothermal Sb_(2)(S,Se)_(3)solar cells and provides interface optimization strategies to improve device performance.

Cl^(-)ions accelerating interface charge transfer in a Si/In_(2)S_(3) Faradaic junction photocathode for solar seawater splitting

Photoelectrocatalytic seawater splitting is a promising low-cost method to produce green hydrogen in a large scale.The effects of Cl^(-)ions in seawater on the performance of a photoanode have been reported in previous studies.However,few researches have been done on the roles of Cl^(-)ions in a photocathode.Herein,for the first time,we find that Cl^(-)ions in the electrolyte improve the photocurrent of a Si/In_(2)S_(3) photocathode by 50% at-0.6 V_(RHE).An in-situ X-ray photoelectron spectroscopy(XPS)characterization combined with the time-of-flight secondary-ion mass spectrometry by simulating photoelectrochemical conditions was used to investigate the interface charge transfer mechanism.The results suggest that there is an In_(2)^(+3)S_(3-x)(OH)_(2x)layer on the surface of In_(2)S_(3) in the phosphate buffer solution(PBS)electrolyte,which plays a role as an interface charge transfer mediator in the Si/In_(2)S_(3) photocathode.The In_(2)^(+3)S_(3-x)(OH)_(2x)surface layer becomes In_(2)^(+3)S_(3-x)(Cl)_(2x)in the PBS electrolyte with NaCl and accelerates the charge transfer rate at the In_(2)S_(3)/electrolyte interface.These results offer a new concept of regulating interface charge transfer mediator to enhance the performance of photoelectrocatalytic seawater splitting for hydrogen production.

Multidentate anchoring through additive engineering for highly efficient Sb_(2)S_(3)planar thin film solar cells

Sb_(2)S_(3)is a promising candidate for the flexible solar cells or the top subcells in tandem solar cells due to its wide-bandgap,less toxic,acceptable cost and progressive power conversion efficiency(PCE).However,the poor quality and high trap states of Sb_(2)S_(3)films limit the device performance further enhancement.Herein,we adopt a multidentate ionic liquid,tetramethylammonium hexafluorophosphate([TMA][PF_(6)])as a novel additive to address this issue.The octahedral[PF_(6)]~-contains six different oriented fluorine atoms with the lone pair electrons,which could coordinate with Sb atoms due to the multidentate anchoring.Thus,the high-quality Sb_(2)S_(3)film with low trap states has been achieved.Moreover,the Fermi level of the Sb_(2)S_(3)film has been upshifted,thereby showing an effective charge transfer.As a result,all photovoltaic parameters of the optimized Sb_(2)S_(3)devices are obviously enhanced,boosting the final PCE from 4.43(control device)to 6.83%.Our study about the multidentate anchoring is manifested to be an effective method to enhance the Sb_(2)S_(3)device performance.

Effective additive for enhancing the performance of Sb_(2)S_(3) planar thin film solar cells

Sb_(2)S_(3) is a promising photovoltaic absorber with appropriate bandgap,excellent light absorption coefficient and great stability.However,the power conversion efficiency(PCE)of Sb_(2)S_(3) planar thin film solar cells is unsatisfactory for further commercial application due to low crystallinity and high resistivity of Sb_(2)S_(3) film.Here,we introduce an additive of 4-Chloro-3-nitrobenzenesulfonyl Chloride(CSCl)to alleviate these problems.The CSCl molecular contains two terminal Cl with lone pair electrons,which have the interaction with Sb atoms.Thus,the Sb_(2)S_(3) film with enhanced crystallization and low trap states has been obtained and the resistivity is also decreased.Furthermore,CSCl additive raises the Fermi level of the Sb_(2)S_(3) film,thereby enhancing the transport of electron from Sb_(2)S_(3) to TiO_(2).Consequently,the optimal PCE of Sb_(2)S_(3) solar cells is raised from 4.20%(control device)to 5.84%.Our research demonstrates a novel additive to enhance the photoelectric performance of Sb_(2)S_(3) solar cells.

P3HT和Spiro-OMeTAD共混物为光活性层和空穴传输层的杂化太阳电池

将P3HT与Spiro-OMeTAD共混后的混合物作为光活性层和空穴传输层,将其旋涂在由不同锑源和硫源比例(Sb/S)制备的Sb_(2)S_(3)纳米粒子敏化的TiO_(2)纳米棒(TiO_(2)(NR)/Sb_(2)S_(3))复合膜上,制备成杂化太阳电池。对所得杂化太阳电池的微观结构和光电转换特性进行研究,在锑源和硫源比例(Sb/S)为1/1,P3HT与Spiro-OMeTAD共混物比例为15 mg∶1 mL时得到的结构为FTO/TiO_(2)(NR)/Sb_(2)S_(3)(1∶1)/P3HT:Spiro-OMeTAD(15 mg∶1 mL)/Ag的杂化太阳电池的能量转换效率达到4.57%。