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| 1 | A chlorinated copolymer donor demonstrates a 18.13% power conversion efficiency显示文摘The rapid development of low-bandgap(LBG)nonfullerene acceptors and wide-bandgap(WBG)copolymer donors in recent years has boosted the power conversion efficiency(PCE)of organic solar cells(OSCs)to the 18%level[1−21].The commercialization of OSCs is highly expected.However,critical issues like the cost and the stability also determine whether OSCs can enter the market or not[22]. | Jianqiang Qin Lixiu Zhang Chuantian Zuo Zuo Xiao Yongbo Yuan Shangfeng Yang Feng Hao Ming Cheng Kuan Sun Qinye Bao Zhengyang Bin Zhiwen Jin and Liming Ding | 2021 | Journal of Semiconductors2021，42，1： | 19 |
| 2 | Progress of the key materials for organic solar cells显示文摘Organic solar cells have attracted academic and industrial interests due to the advantages like lightweight,flexibility and roll-to-roll fabrication.Nowadays,18%power conversion efficiency has been achieved in the state-of-the-art organic solar cells.The recent rapid progress in organic solar cells relies on the continuously emerging new materials and device fabrication technologies,and the deep understanding on film morphology,molecular packing and device physics.Donor and acceptor materials are the key materials for organic solar cells since they determine the device performance.The past 25 years have witnessed an odyssey in developing high-performance donors and acceptors.In this review,we focus on those star materials and milestone work,and introduce the molecular structure evolution of key materials.These key materials include homopolymer donors,D-A copolymer donors,A-D-A small molecular donors,fullerene acceptors and nonfullerene acceptors.At last,we outlook the challenges and very important directions in key materials development. | Yang Tong Zuo Xiao Xiaoyan Du Chuantian Zuo Yuelong Li Menglan Lv Yongbo Yuan Chenyi Yi Feng Hao Yong Hua Ting Lei Qianqian Lin Kuan Sun Dewei Zhao Chunhui Duan Xiangfeng Shao Wei Li Hin-Lap Yip Zhengguo Xiaol Bin Zhang Qingzhen Bian Yuanhang Cheng Shengjian Liu Ming Cheng Zhiwen Jin Shangfeng Yang Liming Ding | 2020 | Science China Chemistry2020，63，6： | 15 |
| 3 | 5H-dithieno[3,2-b:20,30-d]pyran-5-one unit yields efficient wide-bandgap polymer donors显示文摘Recently,great progress has been made in organic solar cells due to the emergence of high-performance nonfullerene acceptors[1-6].Over 16%and 17%power conversion efficiencies(PCEs)were achieved for nonfullerene-acceptor-based single-junction and tandem cells,respectively[7,8].Owing to complementary light absorption,wide-bandgap donor-acceptor(D-A)copolymers are ideal electron-donating partners for nonfullerene acceptors.However,efficient D-A copolymer donors are still limited. | Jinfeng Liu Ling Liu Chuantian Zuo Zuo Xiao Yingping Zou Zhiwen Jin Liming Ding | 2019 | Science Bulletin2019，64，22： | 13 |
| 4 | Interface engineering gifts CsPbI2.25Br0.75 solar cells high performance显示文摘Organic-inorganic halide perovskite (ABX3) solar cells (PSCs)have made great progress in recent years [1]. The power conversion efficiency (PCE) has increased up to 25.2%(NREL Best Research-Cell Efficiency Chart, http://gffzz8798726073dc471csknkfo66b5q5b6qkn.ffgz.tsg.suse.edu.cn/pv/cell-efficiency.html, Accessed August 2019). However, they suffer from poor thermal stability due to the volatile A-site organic cations. | Zhimin Fang Xianyi Meng Chuantian Zuo Dan Li Zuo Xiao Chenyi Yi Mingkui Wang Zhiwen Jin Shangfeng Yang Liming Ding | 2019 | Science Bulletin2019，64，23： | 11 |
| 5 | Efficient and photostable CsPbI_(2) Br solar cells realized by adding PMMA显示文摘Organic–inorganic hybrid perovskite materials demonstrate promising applications in high-efficiency perovskite solar cells (PSCs) with a certified power conversion efficiency(PCE) of 25.5%(http://gffzz8798726073dc471csknkfo66b5q5b6qkn.ffgz.tsg.suse.edu.cn/pv/cell-efficiency.html). | Yanbo Shang Zhimin Fang Wanpei Hu Chuantian Zuo Bairu Li Xingcheng Li Mingtai Wang Liming Ding Shangfeng Yang | 2021 | Journal of Semiconductors2021，42，5： | 4 |
| 6 | Adjusting energy level alignment between HTL and CsPbI_(2)Br to improve solar cell efficiency显示文摘Lead halide perovskites are at the forefront of optoelectronic materials due to their high absorption coefficient,tunable bandgap,long carrier diffusion length,and small exciton binding energy[1−3],yielding high-performance optoelectronic devices. | Zihan Zhang Jia Li Zhimin Fang Haipeng Xie Yongbo Yuan Chuantian Zuo Liming Ding Bin Yang | 2021 | Journal of Semiconductors2021，42，3： | 3 |
| 7 | Drop-coating produces efficient CsPbI_(2) Br solar cells显示文摘Inorganic perovskites (CsPbX_3, X=halide anion), containing no volatile organic cations, exhibit better thermal stability than organic–inorganic hybrid perovskites~([1, 2]). Among inorganic perovskites,α-Cs Pb I3(cubic phase) possesses a relatively suitable bandgap of~1.7 eV. CsPbI_3 perovskite solar cells (PSCs) have demonstrated power conversion efficiencies (PCEs) over 20%~([3-5]). | Hanrui Xiao Chuantian Zuo Fangyang Liu Liming Ding | 2021 | Journal of Semiconductors2021，42，5： | 3 |
| 8 | Inorganic perovskite/organic tandem solar cells with efficiency over 20%显示文摘The rapid development of perovskite solar cells is beyond our imagination.The power conversion efficiency(PCE)of organic-inorganic hybrid perovskite solar cells has reached 25.5%(http://gffzz8798726073dc471csknkfo66b5q5b6qkn.ffgz.tsg.suse.edu.cn/pv/cell-efficiency.html).However,the unsatisfactory stability of hybrid perovskites is an obstacle for their commercialization,which results from the volatile and hygroscopic organic cations[1]. | Ling Liu Zuo Xiao Chuantian Zuo Liming Ding | 2021 | Journal of Semiconductors2021，42，2： | 3 |
| 9 | CsPb(I_(x)Br_(1-x))_(3) solar cells显示文摘Owing to its nice performance, low cost, and simple solution-processing, organic-inorganic hybrid perovskite solar cell(PSC) becomes a promising candidate for next-generation high-efficiency solar cells.The power conversion efficiency(PCE) has boosted from 3.8% to 25.2% over the past ten years. Despite the rapid progress in PCE, the device stability is a key issue that impedes the commercialization of PSCs. Recently, all-inorganic cesium lead halide perovskites have attracted much attention due to their better stability compared with their organic-inorganic counterpart. In this progress report, we summarize the properties of CsPb(IxBr1-x)3 and their applications in solar cells. The current challenges and corresponding solutions are discussed. Finally, we share our perspectives on CsPb(IxBr1-x)3 solar cells and outline possible directions to further improve the device performance. | Xue Jia Chuantian Zuo Shuxia Tao Kuan Sun Yixin Zhao Shangfeng Yang Ming Cheng Mingkui Wang Yongbo Yuan Junliang Yang Feng Gao Guichuan Xing Zhanhua Wei Lijun Zhang Hin-Lap Yip Mingzhen Liu Qing Shen Longwei Yin Liyuan Han Shengzhong Liu Lianzhou Wang Jingshan Luo Hairen Tan Zhiwen Jin Liming Ding | 2019 | Science Bulletin2019，64，20： | 2 |
| 10 | Defect engineering on all-inorganic perovskite solar cells for high efficiency显示文摘Perovskite solar cells based on organic–inorganic hybrid perovskite materials have become a research hotspot in photovoltaics field due to their outstanding power conversion efficiency (PCE)[1]. Nonetheless, the organic cations are volatile and have rotation freedom, which is not good for photoand thermal-stability of the devices. | Bingcheng Yu Chuantian Zuo Jiangjian Shi Qingbo Meng Liming Ding | 2021 | Journal of Semiconductors2021，42，5： | 2 |
| 11 | White light-emitting diodes from perovskites显示文摘White light-emitting diodes(WLEDs),as key infrastructure,play an important role in the field of lighting and display.In the past few decades,many methods were developed to prepare WLEDs.A common strategy is to use blue LEDs to excite yttrium aluminum garnet(YAG)phosphors and generate composite white light,which is now the main technology for commercial lighting.In 2014,Nobel Prize in Physics was awarded to Nakamura et al.for their contribution to blue LEDs[1,2]. | Hengyang Xiang Chuantian Zuo Haibo Zeng Liming Ding | 2021 | Journal of Semiconductors2021，42，3： | 2 |
| 12 | Fully Roll‑to‑Roll Processed Efficient Perovskite Solar Cells via Precise Control on the Morphology of PbI_(2):CsI Layer显示文摘Perovskite solar cells(PSCs)have attracted tremendous attention as a promising alternative candidate for clean energy generation.Many attempts have been made with various deposition techniques to scale-up manufacturing.Slot-die coating is a robust and facile deposition technique that can be applied in large-area roll-to-roll(R2R)fabrication of thin film solar cells with the advantages of high material utilization,low cost and high throughput.Herein,we demonstrate the encouraging result of PSCs prepared by slot-die coating under ambient environment using a twostep sequential process whereby PbI_(2):CsI is slot-die coated first followed by a subsequent slot-die coating of organic cations containing solution.A porous PbI_(2):CsI film can promote the rapid and complete transformation into perovskite film.The crystallinity and morphology of perovskite films are significantly improved by optimizing nitrogen blowing and controlling substrate temperature.A power conversion efficiency(PCE)of 18.13%is achieved,which is promising for PSCs fabricated by two-step fully slot-die-coated devices.Furthermore,PSCs with a 1 cm2 area yield a champion PCE of 15.10%.Moreover,a PCE of 13.00%is obtained on a flexible substrate by the roll-to-roll(R2R)coating,which is one of the highest reported cells with all layers except for metal electrode fabricated by R2R process under ambient condition. | Hengyue Li Chuantian Zuo Dechan Angmo Hasitha Weerasinghe Mei Gao Junliang Yang | 2022 | Nano-Micro Letters2022，14，5： | 2 |
| 13 | F-containing cations improve the performance of perovskite solar cells显示文摘Organic–inorganic halide perovskite solar cells(PSCs)have delivered power conversion efficiency(PCE)on par with that of crystalline silicon solar cells,due to the considerable effort on the optimization of perovskite materials and devices[1].The three-dimensional(3D)perovskite-based PSCs with the standard n–i–p architecture gave a certified PCE of25.5%[2].However,the poor device stability under operating conditions remains an obstacle to commercialization.The 3D hybrid perovskite materials are susceptible to oxygen,UV light,humidity,heat,and electric fields[3].To improve device stability,two main strategies are applied:(1)improving the intrinsic stability[4];(2)providing sufficient protection. | Qin Zhou Chuantian Zuo Zilong Zhang Peng Gao Liming Ding | 2022 | Journal of Semiconductors2022，43，1： | 1 |
| 14 | Low-bandgap Sn-Pb perovskite solar cells显示文摘Record power conversion efficiency(PCE)for organic-inorganic halide perovskite solar cells(PSCs)has been rapidly boosted from 3.8%to 25.5%,approaching the Shockley-Queisser(S-Q)limit for single-junction solar cells[1-3]. | Rui He Chuantian Zuo Shengqiang Ren Dewei Zhao Liming Ding | 2021 | Journal of Semiconductors2021，42，6： | 1 |
| 15 | Efficient MAPbI_(3) solar cells made via drop-coating at room temperature显示文摘Here we demonstrate a room-temperature drop-coating method for MAPbI_(3) films.By using low-boiling-point solvent,high-quality MAPbI_(3) films were made by simply casting a drop of solution onto the substrate at room temperature.This approach took advantage of the synergistic effect of good wettability and volatility of the solvent,enabling high nuclei density and compact film at room temperature.The crystal growth in different solvents was in-situ observed by using optical microscope,which helped us to understand the mechanism for the formation of different film morphology.Perovskite solar cells gave a PCE of 18.21%. | Lixiu Zhang Chuantian Zuo Liming Ding | 2021 | Journal of Semiconductors2021，42，7： | 1 |
| 16 | 4‑Terminal Inorganic Perovskite/Organic Tandem Solar Cells Offer 22%Efficiency显示文摘After fast developing of single-junction perovskite solar cells and organic solar cells in the past 10 years,it is becoming harder and harder to improve their power conversion efficiencies.Tandem solar cells are receiving more and more attention because they have much higher theoretical efficiency than single-junction solar cells.Good device performance has been achieved for perovskite/silicon and perovskite/perovskite tandem solar cells,including 2-terminal and 4-terminal structures.However,very few studies have been done about 4-terminal inorganic perovskite/organic tandem solar cells.In this work,semi-transparent inorganic perovskite solar cells and organic solar cells are used to fabricate 4-terminal inorganic perovskite/organic tandem solar cells,achieving a power conversion efficiency of 21.25%for the tandem cells with spin-coated perovskite layer.By using drop-coating instead of spin-coating to make the inorganic perovskite films,4-terminal tandem cells with an efficiency of 22.34%are made.The efficiency is higher than the reported 2-terminal and 4-terminal inorganic perovskite/organic tandem solar cells.In addition,equivalent 2-terminal tandem solar cells were fabricated by connecting the sub-cells in series.The stability of organic solar cells under continuous illumination is improved by using semi-transparent perovskite solar cells as filter. | Ling Liu Hanrui Xiao Ke Jin Zuo Xiao Xiaoyan Du Keyou Yan Feng Hao Qinye Bao Chenyi Yi Fangyang Liu Wentao Wang Chuantian Zuo Liming Ding | 2023 | Nano-Micro Letters2023，15，2： | 1 |
| 17 | Perovskite films with gradient bandgap for self-powered multiband photodetectors and spectrometers显示文摘Bandgap-graded materials present varying spectral responses at different positions,making them possible to be used as an alternative to photoactive materials array in multi-spectral responsive devices,thus miniaturizing the apparatus.However,the preparation of bandgap-graded materials usually requires complicated deposition process.Here we report a facile lowtemperature solution process to make films with lateral bandgap gradients,which form spontaneously via self-spreading and interdiffusion of solutions.We show lead halide perovskite films with MAPbCl_(3)-MAPbBr_(3)and MAPbBr_(3)-MAPbI_(3)gradients,which exhibit light absorption onsets ranging from 410 to 781 nm.The bandgap-graded films were used to make self-powered multiband photodetectors,which show different spectral responses at different positions without applying bias voltage.Furthermore,self-powered spectrometers were made by using the multiband photodetectors. | Chuantian Zuo Lixiu Zhang Xiyan Pan He Tian Keyou Yan Yuanhang Cheng Zhiwen Jin Chenyi Yi Xiaoliang Zhang Wu-Qiang Wu Qinye Bao Liyuan Han Liming Ding | 2023 | Nano Research2023，16，7： | 1 |
| 18 | Self‑Generated Buried Submicrocavities for High‑Performance Near‑Infrared Perovskite Light‑Emitting Diode显示文摘ABSTRACT Embedding submicrocavities is an effective approach to improve the light out-coupling efficiency(LOCE)for planar perovskite light-emitting diodes(PeLEDs).In this work,we employ phenethylammonium iodide(PEAI)to trigger the Ostwald ripening for the downward recrystallization of perovskite,resulting in spontaneous formation of buried submicrocavities as light output coupler.The simulation suggests the buried submicrocavities can improve the LOCE from 26.8 to 36.2%for near-infrared light.Therefore,PeLED yields peak external quantum efficiency(EQE)increasing from 17.3%at current density of 114 mA cm^(−2)to 25.5%at current density of 109 mA cm^(−2)and a radiance increasing from 109 to 487 W sr^(−1)m^(−2)with low rolling-off.The turn-on voltage decreased from 1.25 to 1.15 V at 0.1 W sr^(−1)m^(−2).Besides,downward recrystallization process slightly reduces the trap density from 8.90×10^(15)to 7.27×10^(15)cm^(−3).This work provides a self-assembly method to integrate buried output coupler for boosting the performance of PeLEDs. | Jiong Li Chenghao Duan Qianpeng Zhang Chang Chen Qiaoyun Wen Minchao Qin Christopher C.S.Chan Shibing Zou Jianwu Wei Zuo Xiao Chuantian Zuo Xinhui Lu Kam Sing Wong Zhiyong Fan Keyou Yan | 2023 | Nano-Micro Letters2023，15，8： | 1 |
| 19 | Intramolecular spatial charge transfer enhances TADF efficiency显示文摘Organic thermally activated delayed fluorescence (TADF)emitters have been advancing fast since 2012, behaving like the next-generation electroluminescent (EL) materials with the advantages of 100%exciton utilization efficiency, full-color emission tunability, and low cost[1]. | Baoyi Ren Chuantian Zuo Yaguang Sun Liming Ding | 2021 | Journal of Semiconductors2021，42，5： | 1 |
| 20 | Blue perovskite LEDs显示文摘Metal halide perovskite light-emitting diodes(PeLEDs)show great potential in ultra-high-definition displays,due to their narrowband emission,wide color gamut(~140%),and cost-effective solution processability[1].Thanks to scientists'tremendous efforts,the external quantum efficiencies(EQEs)for the state-of-the-art PeLEDs emitting near-infrared and green light have reached 21.6%[2]and 23.4%[3],respectively.However,blue PeLEDs,as one of the essential technologies for perovskite-based high-resolution monitors and white light-ing,are still inferior to their red and green counterparts. | Mengqi Zhang Chuantian Zuo Jianjun Tian Liming Ding | 2021 | Journal of Semiconductors2021，42，7： | 0 |
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