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Self-assembled donor-acceptor hole contacts for inverted perovskite solar cells with an efficiency approaching 22%: The impact of anchoring groups

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Journal of Energy Chemistry 2022年第5期31卷 87-95页

作者： Qiaogan Liao Yang Wang Zilong Zhang Kun Yang Yongqiang Shi Kui Feng Bolin Li Jiachen Huang Peng Gao Xugang Guo Department of Materials Science and Engineering Guangdong Provincial Key Laboratory of Functional Oxide Materials and DevicesSouthern University of Science and Technology(SUSTech)Shenzhen 518055GuangdongChina College of Materials Fujian Key Laboratory of Advanced MaterialsXiamen UniversityXiamen 361005FujianChina CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002FujianChina School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001HeilongjiangChina

Self-assembled molecules(SAMs) have shown great potential in replacing bulk charge selective contact layers in high-performance perovskite solar cells(PSCs) due to their low material consumption and simple processing. Herein, we design and synthesize a series of donor-acceptor(D-A) type SAMs(MPA-BTCA, MPA-BT-BA, and MPA-BT-RA, where MPA is 4-methoxy-N-(4-methoxyphenyl)-N-phenylaniline;BT is benzo[c][1,2,5]-thiadiazole;CA is 2-cyanoacrylic acid, BA is benzoic acid, RA is rhodanine-3-propionic acid) with distinct anchoring groups, which show dramatically different properties. MPA-BTCA with CA anchoring groups exhibited stronger dipole moments and formed a homogeneous monolayer on the indium tin oxide(ITO) surface by adopting an upstanding self-assembling mode. However, the MPA-BT-RA molecules tend to aggregate severely in solid state due to the sp~3 hybridization of the carbon atom on the RA group, which is not favorable for achieving a long-range ordered self-assembled layer.Consequently, benefiting from high dipole moment, as well as dense and uniform self-assembled film,the device based on MPA-BT-CA yielded a remarkable power conversion efficiency(PCE) of 21.81%.Encouragingly, an impressive PCE approaching 20% can still be obtained for the MPA-BT-CA-based PSCs as the device area is increased to 0.80 cm^(2). Our work sheds light on the design principles for developing hole selecting SAMs, which will pave a way for realizing highly efficient, flexible, and large-area PSCs.

关键词： Self-assembled molecules Donor-acceptor backbones Hole contacts Perovskite solar cells Anchoring groups

A Cost-Effective D-A-D Type Hole-Transport Material Enabling 20% Efficiency Inverted Perovskite Solar Celis

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Chinese Journal of Chemistry 2021年第6期39卷 1545-1552页

作者： Jiachen Huang Jie Yang Huiliang Sun Kui Feng Qiaogan Liao Bolin Li He Yan Xugang Guo Department of Materials Science and Engineering Southern University of Science and Technology(SUSTech)No.1088Xueyuan RoodShenzhenGuangdong 518055China Depanment of Chemistry The Hong Kong University of Science and TechnologyClear Water BayHong KongChina School of Materials Science and Engineering Harbin Institute of TechnologyHorbinHeilongjiang 150001China

High-performance,cost-effective hole-transport materials(HTMs)are greatly desired for the commercialization of perovskite solar cells(PVSCs).Herein,two new HTMs,TPA-FO and TPA-PDO,are devised and synthesized,which have a donor-acceptor-donor(D-A-D)type molecule design featuring carbonyl group-functionalized arenes as the acceptor(A)units.The carbonyl group at the central core of HTMs can not only tune frontier molecular orbital(FMO)energy levels and surface wettability,but also can enable efficient surface passivation effects,resulting in reduced recombination loss.When employed as HTMs in inverted PVSCs without using dopant,TPA-FO with one carbonyl group yields a high power conversion efficiency(PCE)of 20.24%,which is among the highest values reported in the inverted PVSCs with dopant-free HTMs.More importantly,the facile one-step synthetic process enables a low cost of 30 USD g^(-1) for TPA-FO,much cheaper than the most studied HTMs used for high-efficiency dopant-free PVSCs.These results demonstrate the potential of D-A-D type molecules with carbonyl group-functionalized arene core in developing the low-cost dopant-free HTMs toward highly efficient PVSCs.

关键词： Energy conversion Donor-acceptor systems Interfaces Hole-transport materials Inverted perovskite solar cells

Over 16% efficiency all-polymer solar cells by sequential deposition

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Science China Chemistry 2022年第6期65卷 1157-1163页

作者： Bangbang Li Xuanyu Zhang Ziang Wu Jie Yang Bin Liu Qiaogan Liao Junwei Wang Kui Feng Rui Chen Han Young Woo Fei Ye Li Niu Xugang Guo Huiliang Sun Department of Materials Science and Engineering Southern University of Science and Technology(SUSTech)Shenzhen518055China Center for Advanced Analytical Science School of Chemistry and Chemical EngineeringGuangzhou UniversityGuangzhou510006China Department of Electrical and Electronic Engineering Southern University of Science and Technology(SUSTech)Shenzhen518055China Department of Chemistry Korea UniversitySeoul136-713Republic of Korea Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices SUSTechShenzhen518055China

All-polymer solar cells(all-PSCs) have received extensive attention due to their excellent mechanical robustness and performance stability. However, the power conversion efficiency(PCE) of all-PSCs still lags behind those of organic solar cells(OSCs)based on non-fullerene small molecule acceptors. Herein, we report highly efficient all-PSCs via sequential deposition(SD) with donor and acceptor layers coated sequentially to optimize the film microstructure. Compared with the bulk heterojunction(BHJ)all-PSCs, an optimized morphology with vertical component distribution was achieved for the SD-processed all-PSCs due to the synergistic effect of swelling of polymer films and using additive. Such strategy involves using chlorobenzene as the first layer processing-solvent for polymer donor, chloroform as the second processing-solvent for polymer acceptor with trace 1-chloronaphthalene, efficiently promoting exciton dissociation and charge extraction and reducing trap-assisted recombination.Consequently, over 16% all-PSCs fabricated via SD method was realized for the first time, which is much higher than that(15.2%) of its BHJ counterpart and also among the highest PCEs in all-PSCs. We have further demonstrated the generality of this approach in various all-polymer systems. This work indicates that the SD method can yield excellent all-PSCs and provides a facile approach to fabricating high-performance all-PSCs.

关键词： all-polymer solar cells polymer acceptors planar heterojunction sequential deposition

Optimization of solvent swelling for efficient organic solar cells via sequential deposition

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Materials Reports(Energy) 2021年第4期1卷 77-83页

作者： Qiaogan Liao Bangbang Li Huiliang Sun Chang Woo Koh Xianhe Zhang Bin Liu Han Young Woo Xugang Guo Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055GuangdongPR China Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices Southern University of Science and Technology(SUSTech)Shenzhen 518055GuangdongPR China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001PR China Research Institute for Natural Sciences Department of ChemistryKorea UniversitySeoul 136-713South Korea

Compared to bulk heterojunction(BHJ)organic solar cells(OSCs)prepared by the blend casting in“one step process”,sequential deposition(SD)processed OSCs can realize an ideal profile of vertical component distribution due to the swelling of polymer films.Herein,we did trials on several kinds of second solvents for swelling the polymer layer,and investigated the packing structure and morphology of the swollen films and the performance of the resulting devices.We found that an optimized morphology can be achieved by solvent swelling while using orthodichlorobenzene(o-DCB)as the second layer processing-solvent,with polymer donor PffBT-3 as bottom layer,PC71BM as top layer and bicontinuous networks in the middle.Such solvent swelling process also makes the SD method exempt from thermal annealing treatment.The device based on SD yields a power conversion effi-ciency(PCE)up to 8.7%without any post-treatment,outperforming those from the devices based on SD using other solvents and that(7.06%)from BHJ device,respectively.We also extended the use of this approach to allpolymer blend system,and successfully improved the efficiency from 4.72%(chloroform)to 9.35%(o-DCB),which is among the highest PCEs in all-polymer-based OSCs fabricated with SD method.The results demonstrate that the swelling of the polymer by the second layer solvent is a necessity for SD,paving the way towards additivefree high-performance OSCs.

关键词： Organic solar cells Bulk heterojunction Sequential deposition Solvent swelling Vertical phase separation Second solvent

理气活血滴丸治疗冠心病慢性稳定型心绞痛安全性及有效性的前瞻性、单臂、多中心Ⅳ期临床研究

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中西医结合心脑血管病杂志 2019年第5期17卷 641-647页

作者：王晓峰张雪娟王磌樊瑞红许东云赵肖华徐慧徐惠梅沈春富肖长江陈玲吕庆连徐坡姜卫东杨乔淦刘宝山沈安明徐素娥王振涛龙明智周亚滨刘淑荣李逢春王慧智邓悦叶穂霖陈守强袁晖戍邓兵徐新娟夏碧桦赵英强孙刚刘素堂肖泓孙洁周锐许勇张永光王肖龙毕育学孙旭吴宗贵新疆维吾尔自治区中医医院乌鲁木齐830099 青岛大学附属医院山东省立第三医院天津市中医药研究院附属医院昆明医科大学第一附属医院乌鲁木齐市中医医院济南市中医医院黑龙江省中医药科学院杭州市富阳区中医医院湖南中医药研究院附属医院陕西中医药大学附属医院淮南朝阳医院靖江市中医院南通市中医院姜堰市中医院天津医科大学总医院如皋市中医院淮安市中医院河南中医学院第二附属医院南京医科大学第二附属医院黑龙江中医药大学附属第一医院吉林省中医药科学院第一临床医院西安市中医院贵阳市第二人民医院长春中医药大学附属医院广州市中医医院山东中医药大学第二附属医院黑龙江中医药大学附属第二医院上海中医药大学附属龙华医院新疆医科大学第一附属医院贵州医科大学第二附属医院天津中医药大学第二附属医院贵阳中医学院第一附属医院灌南县人民医院云南省中医医院马鞍山市人民医院遵义市妇幼保健院成都中医药大学附属医院泰州市中医医院上海中医药大学附属曙光医院西安交通大学医学院贵州益佰制药股份有限公司海军军医大学附属长征医院

目的系统阐明理气活血滴丸在冠心病慢性稳定型心绞痛人群广泛使用条件下的安全性和有效性。方法 2016年3月—2017年8月在上海长征医院等全国41家中心随机纳入冠心病慢性稳定型心绞痛病人2 433例,口服理气活血滴丸,每次10粒,每日3次,连服... 详细信息

目的系统阐明理气活血滴丸在冠心病慢性稳定型心绞痛人群广泛使用条件下的安全性和有效性。方法 2016年3月—2017年8月在上海长征医院等全国41家中心随机纳入冠心病慢性稳定型心绞痛病人2 433例,口服理气活血滴丸,每次10粒,每日3次,连服4周进行治疗,评估疗效、安全性和生活质量等指标。结果服用4周后,心绞痛症状总有效率为72.45%,硝酸甘油停减率为88.80%,心电图疗效总有效率为52.53%。共发生不良事件494例(20.27%),与药物可能有关的不良事件123例(5.06%)。治疗4周后和筛选期相比,病人生活质量显著提高(P <0.001)。结论理气活血滴丸治疗冠心病稳定型心绞痛有效可靠,安全性好。

关键词：冠心病稳定型心绞痛理气活血滴丸 Ⅳ期临床研究安全性有效性

理气活血滴丸治疗冠心病慢性稳定性心绞痛Ⅳ期临床研究合并高血压亚组分析

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中国循证心血管医学杂志 2019年第11期11卷 1337-1341页

作者：王晓峰张雪娟王磌樊瑞红许东云赵肖华徐慧徐惠梅沈春富肖长江陈玲吕庆连徐坡姜卫东杨乔淦刘宝山沈安明徐素娥王振涛龙明智周亚滨刘淑荣李逢春王慧智邓悦叶穂霖陈守强袁晖戍邓兵徐新娟夏碧桦赵英强孙刚刘素堂肖泓孙洁周锐许勇张永光王肖龙毕育学于宁吴宗贵新疆医科大学附属中医医院心内科乌鲁木齐830099 青岛大学附属医院综合内科青岛266031 山东省立第三医院心血管内科济南250031 天津市中医药研究院附属医院心病科天津300120 昆明医科大学第一附属医院中医科昆明650032 乌鲁木齐市中医医院心脑血管科乌鲁木齐830099 济南市中医医院心血管病学科济南250012 黑龙江省中医药科学院心病科哈尔滨150036 杭州市富阳区中医医院心血管科杭州311499 湖南中医药研究院附属医院心血管科长沙410006 陕西中医药大学附属医院心血管科西安712021 淮南朝阳医院心脏内科淮南232002 靖江市中医院老年病科靖江214599 南通市中医院心血管内科南通226001 姜堰市中医院心血管病科姜堰225599 天津医科大学总医院中医科天津300070 如皋市中医院心血管内科如皋226599 淮安市中医院心血管科淮安223001 河南中医学院第二附属医院心病科郑州淮安223001 南京医科大学第二附属医院心血管内科南京210011 黑龙江中医药大学附属第一医院心血管病科哈尔滨150040 吉林省中医药科学院第一临床医院心病科长春130021 西安市中医院心病科西安710004 贵阳市第二人民医院心内科贵阳550081 长春中医药大学附属医院心病中心长春130021 广州市中医医院心血管科广州510130 山东中医药大学第二附属医院心血管病科济南250001 黑龙江中医药大学附属第二医院心病科哈尔滨150001 上海中医药大学附属龙华医院心病科上海200032 新疆医科大学第一附属医院心脏中心-高血压科乌鲁木齐830054 贵州医科大学第二附属医院心血管内科凯里556000 天津中医药大学第二附属医院心血管科天津300150 贵阳中医学院第一附属医院心内科贵阳550001 灌南县人民医院心内科连云港222500 云南省中医医院心血管病科昆明650021 马鞍山市人民医院临湖病区马鞍山243011 遵义市妇幼保健院内科遵义563099 成都中医药大学附属医院心内科成都610075 泰州市中医医院心血管病科泰州225309 上海中医药大学附属曙光医院心血管内科上海200021 西安交通大学医学院西安710061 贵州益佰制药股份有限公司医学部贵阳550008 海军医科大学附属长征医院心血管内科上海200003

目的本研究对理气活血滴丸Ⅳ期临床研究中合并高血压患者数据进行分析,系统评价理气活血滴丸在冠心病慢性稳定性心绞痛合并高血压人群广泛使用条件下安全性和有效性。方法2016年3月~2017年8月于上海长征医院等全国41家中心随机纳入冠心... 详细信息

目的本研究对理气活血滴丸Ⅳ期临床研究中合并高血压患者数据进行分析,系统评价理气活血滴丸在冠心病慢性稳定性心绞痛合并高血压人群广泛使用条件下安全性和有效性。方法2016年3月~2017年8月于上海长征医院等全国41家中心随机纳入冠心病慢性稳定性心绞痛患者2433例,其中合并高血压患者1117例。口服理气活血滴丸,每次10粒,3/d,连服4周。对合并高血压患者的有效性、安全性和生活质量等指标进行评价。结果服药4周后,合并高血压患者心绞痛症状有效率74.05%,硝酸甘油的停减率85.90%,心电图疗效68.60%。合并高血压患者发生与药物相关不良事件81例,发生率7.25%。和筛选期相比,治疗4周后患者生活质量显著提高(P<0.001)。结论理气活血滴丸治疗冠心病稳定性心绞痛合并高血压人群疗效可靠,安全性好,患者生活质量显著提高,值得临床推广使用。

关键词：理气活血滴丸 Ⅳ期临床研究稳定性心绞痛冠心病高血压