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| 1 | Transition metal oxides as hole-transporting materials in organic semiconductor and hybrid perovskite based solar cells显示文摘Organic polymer solar cells(OSCs) and organic-inorganic hybrid perovskite solar cells(PSCs) have achieved notable progress over the past several years.A central topic in these fields is exploring electronically efficient,stable and effective hole-transporting layer(HTL) materials.The goal is to enhance hole-collection ability,reduce charge recombination,increase built-in voltage,and hence improve the performance as well as the device stability.Transition metal oxides(TMOs) semiconductors such as NiO_x,CuO_x,CrO_x,MoO_x,WO_3,and V_2O_5,have been widely used as HTLs in OSCs.These TMOs are naturally adopted into PSC as HTLs and shows their importance.There are similarities,and also differences in applying TMOs in these two types of main solution processed solar cells.This concise review is on the recent developments of transition metal oxide HTL in OSCs and PSCs.The paper starts from the discussion of the cation valence and electronic structure of the transition metal oxide materials,followed by analyzing the structure-property relationships of these HTLs,which we attempt to give a systematic introduction about the influences of their cation valence,electronic structure,work function and film property on device performance. | Pingli Qin Qin He Dan Ouyang Guojia Fang Wallace C.H. Choy Gang Li | 2017 | Science China Chemistry2017，60，4： | 6 |
| 2 | Triblock copolymer-assisted construction of 20 nm-sized ytterbium-doped TiO_2 hollow nanostructures for enhanced solar energy utilization efficiency显示文摘Rare-earth doped titania single-crystalline hollow nanoparticles of 20 nm are constructed via a simple sol-gel process. Amphiphilic ABA tri-block copolymers played a key role in assisting the formation of hollow structure, for which a hollow nanostructure growth mechanism is proposed. By introducing rare earth into the synthesis process, the as-prepared nanoparticles exhibit near-infrared light absorption properties. Photo-decomposition efficiency of Orange II azo dye can be successfully evaluated when using Yb3+-doped Ti O2 hollow nanoparticles as photocatalysts; it is more than two times higher than the pure Ti O2 hollow nanoparticles. The hollow nanostructured Yb3+-doped Ti O2 samples are exploited as photoanodes in N719- sensitized solar cells and prove able to improve the photoelectric conversion efficiency by measuring the solar cell parameters of dye-sensitized solar cells(DSSCs) under simulative sunlight. | Lin Cheng Xuefeng Xu Yuyan Fang Yan Li Jiaxi Wang Guojia Wan Xueying Ge Liangjie Yuan Keli Zhang Lei Liao Quan Yuan | 2015 | Science China Chemistry2015，58，5： | 2 |
| 3 | Influence of Post-deposition Annealing on the Properties of Transparent Conductive Nanocrystalline ZAO Thin Films Prepared by RF Magnetron Sputtering with Highly Conductive Ceramic Target 显示文摘 | Guojia Fang J Li Dejie Yao Baolun | 2002 | Thin Solid Film2002，418，： | 1 |
| 4 | Perovskite So- lar Cell with an Efficient TiO2 Compact Film 显示文摘 | Ke Weijun Fang Guojia Wang Jing | 2014 | ACS Appl Mater Interfaces2014，18，15： | 1 |
| 5 | Organic-inorganic hybrid hole transport layers with SnS doping boost the performance of perovskite solar cells显示文摘Perovskite solar cells(PSCs) have demonstrated excellent photovoltaic performance which currently rival the long-standing silicon solar cells’ efficiency. However, the relatively poor device operational stability of PSCs still limits their future commercialization. Binary sulfide is a category of materials with promising optoelectrical properties, which shows the potential to improve both the efficiency and stability of PSCs.Here we demonstrate that the inorganic tin monosulfide(Sn S) can be an efficient dopant in 2,2’,7,7’-tet rakis(N,N-di-p-methoxy-phenylamine)-9,9’-spirobifluorene(spiro-OMe TAD) to form a composite hole transport layer(HTL) for PSCs. Sn S nanoparticles(NPs) synthesized through a simple chemical precipitation method exhibit good crystallization and suitable band matching with the perovskites. The introduction of Sn S NPs in Spiro-OMTAD HTLs enhanced charge extraction, reduced trap state density, and shallowed trap state energy level of the devices based on the composite HTLs. Therefore, the resulting solar cells employing Sn S-doped spiro-OMe TAD HTLs delivered an improved stabilized power output efficiency of 21.75% as well as enhanced long-term stability and operational stability. Our results provide a simple method to modify the conventional spiro-OMe TAD and obtain PSCs with both high efficiency and good stability. | Xiaolu Zheng Haibing Wang Feihong Ye Cong Chen Weijun Ke Wenjing Zhang Chuanxin He Yanlong Tai Guojia Fang | 2022 | Journal of Energy Chemistry2022，31，5： | 1 |
| 6 | 显示文摘 | Fang Guojia Li Dejie Yao Baolun | 2003 | Journal of Crystal Growth2003，247，： | 1 |
| 7 | 显示文摘 | Fang Guojia Li Dejie Yao Baolun | 2003 | Vaccum2003，68，： | 1 |
| 8 | Effect of thickness on structural, electrical, and optical properties of ZnO:A1 films deposited by pulsed laser deposition 显示文摘 | Dong Binzhong Fang Guojia Wang Jjanfeng | 2007 | J Appl Phys2007，101，3： | 1 |
| 9 | Improved electrical characteristics and reliability of amorphous InGaZnO metal-insulator-semi- conductor capacitor with high k HfOxNy gate dielectric 显示文摘 | ZOU Xiao FANG Guojia YUAN Longyuan | 2010 | Microelectronics Reliability2010，50，7： | 1 |
| 10 | Enhancing the short-circuit current and efficiency of organic solar cells using MoO 3 and CuPc as buffer layers显示文摘 | Fei Cheng Guojia Fang Xi Fan Nishuang Liu Nanhai Sun Pingli Qin Qiao Zheng Jiawei Wan Xingzhong Zhao | 2011 | Solar Energy Materials and Solar Cells2011，，10： | 1 |
| 11 | Fabrication and Characterization of Transparent Conductive ZnO:Al Thin Films Prepared by Direct Current Magnetron Sputtering with Highly Conductive ZnO(ZnAl2O4) Ceramic Target显示文摘 | Dejie Li Bao-Lun Yao | 2003 | Crystal Growth2003，247，： | 1 |
| 12 | 显示文摘 | Fang Guojia Li Dejie Zhao Xinzhong | 2003 | Physic Sstatus Solid(a)2003，200，： | 1 |
| 13 | Tin oxide(SnO_2) as effective electron selective layer material in hybrid organic–inorganic metal halide perovskite solar cells显示文摘The emergence of hybrid organic–inorganic metal halide perovskite solar cells(PSCs) causes a breakthrough in the solar technology recently due to its superior optoelectronic properties and the low-cost fabrication processes. The dramatic enhancement in power conversion efficiency(PCE) of PSCs from 3.8%in 2009 to the recent certified record PCE of 22.7% indicates huge potential of PSCs for future high efficiency and large scale photovoltaic manufacturing. The electron selective layer(ESL) plays an important role in electron extraction and hole blocking function in PSCs, and there have been great interest in developing efficient ESL materials. Recently, tin oxide(SnO_2) as an ESL has attracted significant research attentions owing to its low temperature preparation processes as well as yielding high PCE and good stability of PSCs. In this perspective article, we focus on the development progress of SnO_2 as an ESL in PSCs, and discuss the strategies for preparing SnO_2 to achieve PSCs with high efficiency, less hysteresis and good device stability. | Guang Yang Pingli Qin Guojia Fang Gang Li | 2018 | Journal of Energy Chemistry2018，27，4： | 1 |
| 14 | Fabrication and characterization of transparent conductive ZnO:Al thin films prepared by direct current magnetron sputtering with highly conductive ZnO(ZnAl2O4) ceramic target显示文摘 | Dejie Li Bao-Lun Yao | 2003 | Crystal Growth2003，247，： | 1 |
| 15 | Defect Passivation on Lead-Free CsSnI_(3) Perovskite Nanowires Enables High-Performance Photodetectors with Ultra-High Stability显示文摘In recent years,Pb-free CsSnI_(3) perovskite materials with excellent photoelectric properties as well as low toxicity are attracting much atten-tion in photoelectric devices.However,deep level defects in CsSnI_(3),such as high density of tin vacancies,structural deformation of SnI_(6)−octahedra and oxidation of Sn^(2+)states,are the major challenge to achieve high-performance CsSnI_(3)-based photoelectric devices with good stability.In this work,defect passivation method is adopted to solve the above issues,and the ultra-stable and high-performance CsSnI_(3) nanowires(NWs)photodetectors(PDs)are fabricated via incorporating 1-butyl-2,3-dimethylimidazolium chloride salt(BMIMCl)into perovskites.Through materials analysis and theoretical calculations,BMIM+ions can effectively passivate the Sn-related defects and reduce the dark current of CsSnI_(3) NW PDs.To further reduce the dark current of the devices,the polymethyl methacrylate is introduced,and finally,the dual passivated CsSnI_(3) NWPDs show ultra-high performance with an ultra-low dark current of 2×10^(-11) A,a responsivity of up to 0.237 A W^(−1),a high detectivity of 1.18×10^(12) Jones and a linear dynamic range of 180 dB.Furthermore,the unpackaged devices exhibit ultra-high stability in device performance after 60 days of storage in air(25℃,50% humidity),with the device performance remaining above 90%. | Zheng Gao Hai Zhou Kailian Dong Chen Wang Jiayun Wei Zhe Li Jiashuai Li Yongjie Liu Jiang Zhao Guojia Fang | 2022 | Nano-Micro Letters2022，14，12： | 1 |
| 16 | Ultraviolet electroluminescence from ZnO/NiO-based heterojunction light-emitting diodes 显示文摘 | Long Hao Fang Guojia Huang Huihui | 2009 | Appl Phys Lett2009，95，01： | 1 |
| 17 | Influence of Post- Deposition Annealing on the Properties of Transparent Conductive Nanocrystalline ZAO Thin Films Prepared by RF Magnetron Sputtering with Highly Conductive Ceramic Target显示文摘 | J Fang Guojia Li Dejie Yao Baolun | 2002 | Thin Solid Films2002，418，2： | 1 |
| 18 | Effect of thickness on structural,electrical,and optical properties of ZnO:Al films deposited by pulsed laser deposition显示文摘 | Dong Binzhong Fang Guojia | | 0，，03： | 1 |
| 19 | Enhanced efficiency and stability of triple-cation perovskite solar cells with CsPbI_(x)Br_(3−x)QDs“surface patches”显示文摘Perovskite solar cells(PSCs)with a light-harvesting three-dimensional perovskite bulk layer as backbone component have achieved great progress in performance.Nonradiative recombination is one major place to improve efficiency and stability as they cause significant energy loss in PSCs.Additionally,an imperfection in grain boundaries will initiate device degradation.One of the most successful strategies to decrease nonradiative recombination in PSCs is the introduction of reduced dimensional perovskite(e.g.,perovskite quantum wells),benefiting the device's efficiency and stability tremendously.Here,instead of quantum wells,mixed-cation perovskites with ligand-contained CsPbBr_(x)I_(3−x)quantum dots(QDs)are prepared,which is shown to function as perovskite healing“surface patches.”Benefiting from the“surface patches”effect,the QDs-film shows reduced defects and enhancing film quality which lead to the excellent performance of solar cells(enhancing the power conversion efficiency from 19.21%of the control device to 21.71%[22.1%in reverse scan]). | Guang Yang Hengkai Zhang Siqi Li Zhiwei Ren Guojia Fang Dangyuan Lei Gang Li | 2022 | SmartMat2022，3，3： | 1 |
| 20 | Numerical calculations of field enhancement and field amplification factors for a vertical carbon nanotube in parallel-plate geometry显示文摘 | Wei Zeng Guojia Fang Nishuang Liu Longyan Yuan Xiaoxia Yang Shishang Guo Dianyuan Wang Zhiqiang Liu Xingzhong Zhao | 2009 | Diamond & Related Materials2009，，： | 1 |
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