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河南封丘县齐太磊被美国北卡罗来纳大学教堂山分校当地警方逮捕，齐太磊曾就读于武汉大学，南方科技大学
2009年，齐太磊在封丘一中毕业，以603分的高分报考天津大学没有录取，选择了复读。
2010年8月，濮阳油田中学复读的哥哥齐太磊考出了624分的高分，被武汉大学物理科学与技术学院录取
齐太磊数学126分，外语136分，理综264分
两人的成绩在封丘县今年的高考成绩中排名第四。
2019年12月，南方科技大学物理系研究助理齐太磊与龚佑品研究副教授(共同第一作者)在国际顶级学术期刊Advanced Functional Materials (影响因子15.621)上发表题为“Interlayer Transition in a vdW Heterostructure toward Ultrahigh Detectivity Shortwave Infrared Photodetectors”的论文。
2023年8月28日，美国北卡罗来纳大学教堂山分校校园内发生枪击事件。发生多起枪击事件，伤亡人数目前不明。当地警方刚刚发布齐太磊为嫌疑人。
河南俩兄弟同考624分 同上名校(图)
2010年08月09日 10:13 大河网-大河报
弟兄两个都收到了名校的通知书
齐氏兄弟档案
哥哥：齐太磊
高考分数：624分
录取学校：武汉大学
弟弟：齐太安
高考分数：624分
录取学校：西安交通大学
□记者 李一川 实习生 武怡晗 文
记者 陈晓东 图
齐太磊和齐太安年龄相差两岁。在濮阳油田中学复读的哥哥齐太磊和就读于封丘一中的弟弟齐太安，今年同样考出了624分的高分。哥哥被武汉大学物理科学与技术学院录取，弟弟被西安交大能源动力系及自动化专业录取。记者驱车赶到封丘县居厢乡大沙村4组，见到了这对兄弟。
都是1.78米左右的个头，都明显偏瘦，都戴着眼镜，都是憨厚而腼腆的神情——这是记者对齐太磊和齐太安兄弟俩的第一印象。兄弟俩的卧室相当简陋，两张床，两个小课桌，一个简易电扇挂在木棍上。
奇！
兄弟俩同考624分
记者随便在大沙村问了几个村民。一听说是采访上大学的兄弟俩，很多村民说：“是不是庆毅家的那俩娃儿。这俩孩子真争气！现在，三里五庄的人都知道他家出了两个高才生，而且考的分还一样。兄弟俩相差两岁，高考时考出同样的分数，太不可思议了。”
记者看到兄弟两人时，他们正在闷热的小房间研究随录取通知书寄来的武汉城区地图。“这是武大给哥哥寄来的地图。我们想看看哥哥乘哪路公交车可到学校。”弟弟齐太安说。
兄弟俩都已拿到了录取通知书。查看两人成绩单，记者发现，弟弟考试地点在封丘一中，哥哥考试地点在濮阳油田中学。
据了解，齐太磊也在封丘一中毕业，2009年以603分的高分报考天津大学没有录取，选择了复读。“家里比较穷，考虑到去濮阳油田中学可免学杂费，所以暑假过完，就让他一个人掂着包去濮阳复读。由于路费太贵，我们没人去送他。”父亲齐庆毅含泪说。
两人高考分数均为624分，且各科成绩很类似。两人数学成绩相同，都为126分，外语成绩哥哥136分，弟弟133分。理综成绩，哥哥264分，弟弟261分。采访中，记者了解到，两人的成绩在封丘县今年的高考成绩中排名第四。
俭！
两人每顿只吃一份菜
齐家的院子打扫得十分干净，两间瓦房，一间小平房。院子里唯一值钱的东西就是一台拖拉机。齐庆毅说，他们家种有6亩地，这是全家唯一的生活来源。“我腿脚不好，根本干不了重活。很多农活，都是俩孩子帮着干的。这么多年，多亏了俩孩子啊！”孩子的母亲苌青云哽咽着说。
父亲齐庆毅告诉记者，俩孩子特别懂事，平时每月分别给他们生活费200元，可他们都不舍得花。
兄弟俩最大的爱好就是逛书店。哥哥齐太磊告诉记者：“我和弟弟在一个学校时，在学校食堂都是买一份菜一起吃。一个月下来，最多也就花300块钱。剩下的钱我们全买书了。”
封丘一中业务校长贾共杰说，齐家兄弟俩考分一样是一种偶然，但他们都考出这样的高分有其必然性。他们学习都非常刻苦，平时学习上互帮互助。“另外，兄弟俩在生活中互相关心，学习上却暗自较劲、相互竞争”。
难！
万余元学费愁坏一家人
说起兄弟两人加起来万余元的学费，齐庆毅夫妇脸上难掩愁容。“孩子他爹已有肝病10多年了，我的腿又经常化脓，一直没办法干重活。我们俩的病，可苦了俩孩子。”母亲苌青云叹着气说。
“以前，家里刚能维持两个孩子上高中的生活费，现在两人上大学，仅学费就要一万多，这可咋办呢？”齐庆毅叹着气说。
西安交大8月中旬就要开学，苌青云已给俩儿子做好了铺盖，“到学校买，一个是太贵，另外一个是担心里面的棉花不好”。
对于将来，兄弟俩表示：“走一步说一步，我们上大学后会兼职做家教挣些零用钱，减轻家中负担。不过还是要好好学习，毕竟完成学业最重要。”
相关链接
2006年6月30日本报报道，襄城高中14班的孪生姐妹任真真和任佳佳都考了598分(文史类)，超出当年我省文科一本录取控制线7分。
2010年8月5日本报报道，新密市一对孪生姐妹康婷婷、康双双考分都为531分，一个被河南农大录取，一个被河南工大录取。
南方科技大学物理系在2D范德瓦尔异质结短波红外光电探测器领域取得新进展
2019-12-06
近日，物理系副教授张立源和研究副教授龚佑品，与电子与电气工程系副教授陈锐合作，共同报道了一种基于2D范德瓦尔(vdW)异质结层间激子跃迁的超高比探测率的短波红外光电探测器。他们在国际顶级学术期刊Advanced Functional Materials (影响因子15.621)上发表题为“Interlayer Transition in a vdW Heterostructure toward Ultrahigh Detectivity Shortwave Infrared Photodetectors”的论文。文章第一作者为物理系齐太磊研究助理与龚佑品研究副教授(共同第一作者)。龚佑品、陈锐和张立源为共同通讯作者。
短波红外(SWIR)光电探测器可探测1.0–3.0 μm的光谱，可广泛应用于遥感、成像和自由空间通信等领域。然而，传统的商用SWIR光电探测器主要依赖于HgCdTe或InAs/GaSb II–型超晶格和InGaAs/GaAsSb II–型量子阱。但是它们都存在一些瓶颈，譬如，HgCdTe半导体存在原料毒性和均匀性差、产率低等问题。而且，HgCdTe SWIR光电探测器必须在低温下工作才能抑制暗电流(或热噪声)，以此获得较高的比探测率。此外，基于II型超晶格或多量子阱的传统SWIR光电探测器需要使用昂贵的分子束外延工艺来实现器件制备。因此，开发工艺简单的新型非制冷、高性能SWIR光电探测器显得意义重大。
据此，齐太磊和博士生李阿蕾等人在龚佑品研究副教授的直接指导下，通过2D层状材料vdW异质结能带工程构建了GaTe/InSe vdW II型半导体异质结(图1)，并在该异质结中成功实现了基于层间激子跃迁(interlayer transition)的短波红外光探测，从而使可探测的光谱范围超过了单一2D材料层自身带隙限制的截止波长。
在该研究中，他们首先生长出高质量的GaTe和InSe单晶块体，并利用逐层干法转移的方式制备了具有洁净界面的GaTe/InSe vdW II型异质结(图1a)。他们通过构建该异质结的理论模型和计算，发现当在单一GaTe表面引入InSe层后，带隙从单一GaTe的~1.3 eV降低到异质结总体的~0.5 eV(图1b,c)，这个新的带隙状态暗示了当入射光子能量大于~0.5 eV时，GaTe层和InSe层之间激子(层间激子，激子中被束缚的电子和空穴分别位于不同的2D材料层)的产生和跃迁的可行性。对该GaTe/InSe vdW异质结的光电实验测试也证实了该器件在1.0–1.55 μm波段内非凡的探测能力，从而实现了超越单一GaTe(截止波长~0.73 μm)和InSe (截止波长~0.95 μm)带隙限制的高性能短波红外探测。这些性能包括在1064和1550 nm时分别高达267.4和1.5 A/W的光响应度，以及分别高达~1014和 1012 Jones的比探测率D*(图1d,e)。且该器件超高的比探测率可与基于InGaAs和InAs窄带隙半导体，HgCdTe、InAs/GaSb II–型超晶格和InGaAs/GaAsSb II–型的最新商业SWIR光电探测器相媲美。
研究结果表明，具有II型能带排列的2D vdW异质结可以实现层间激子跃迁，这为在短波红外或更长波长范围内开发高性能光电器件提供一种可行的新策略，从而超越了组成材料的带隙和异质外延的限制。可以预见，这类新型的2D异质结在柔性的光电子器件方面具有广泛的应用价值。
图1_副本.jpg
图1：器件结构和光探测性能.
(a)3D的器件结构图；
(b)GaTe/InSe异质结相应的全部和部分(基于原子类型)态密度；
(c)GaTe/InSe的II型能带排列示意图；
(d)GaTe/InSe异质结光探测器与单一InSe(GaTe)器件的光响应度与波长的关系对比；
(e)比探测率。
该研究得到了国家自然科学基金、广东省创新创业团队计划、深圳市科创委的学科布局，以及南科大和深圳市的启动配套经费等项目的大力支持。
美国堪萨斯大学的Judy Z. Wu教授和密苏里州立大学的Ridwan Sakidja教授也对该研究工作有重要贡献。
文章链接(Adv. Funct. Mater. 2019, 1905687)：https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.201905687
英文翻译
Qi Tailei from Fengqiu County, Henan Province was arrested by the local police at the University of North Carolina at Chapel Hill. Qi Tailei had studied at Wuhan University and Southern University of Science and Technology
Qi Tailei also graduated from Fengqiu No. 1 Middle School. In 2009, he applied for Tianjin University with a high score of 603 and was not admitted, so he chose to repeat his studies.
In August 2010, Qi Tailei, the older brother who was a repeat student at Puyang Oilfield Middle School, scored 624 points in the test and was admitted by the School of Physical Science and Technology of Wuhan University
Qi Tailei scored 126 points in mathematics, 136 points in foreign languages, and 264 points in comprehensive science
The results of the two ranked fourth in Fengqiu County’s college entrance examination results this year.
Qi Tailei and his younger brother Qi Taian
In December 2019, Qi Tailei, a research assistant in the Department of Physics of Southern University of Science and Technology, and Gong Youpin, a research associate professor (co-first author), published a paper entitled “Interlayer Transition in a vdW Heterostructure toward Ultrahigh Detectivity” in the top international academic journal Advanced Functional Materials (impact factor 15.621). Shortwave Infrared Photodetectors” paper.
Recently, Zhang Liyuan, an associate professor of the Department of Physics, and Gong Youpin, a research associate professor, collaborated with Chen Rui, an associate professor of the Department of Electronics and Electrical Engineering, to report a method based on the ultra-high specific detection rate of exciton transitions between 2D van der Waals (vdW) heterojunction layers. Short-wave infrared photodetectors. They published a paper entitled “Interlayer Transition in a vdW Heterostructure toward Ultrahigh Detectivity Shortwave Infrared Photodetectors” in the top international academic journal Advanced Functional Materials (impact factor 15.621). The first authors of the article are research assistant Qi Tailei and research associate professor Gong Youpin (co-first authors) from the Department of Physics. Gong Youpin, Chen Rui and Zhang Liyuan are the co-corresponding authors.
On August 28, 2023, a shooting occurred on the campus of the University of North Carolina at Chapel Hill. Multiple shootings occurred, and the number of casualties is currently unknown. The local police have just released Qi Tailei as a suspect.
Two brothers in Henan scored 624 in the same exam and went to a prestigious school (photo)
August 9, 2010 10:13 Dahe Net-Dahe News
Both brothers have received notifications from prestigious schools
Archives of the Qi Brothers
Brother: Qi Tailei
College entrance examination score: 624 points
Admission school: Wuhan University
Brother: Qi Tai’an
College entrance examination score: 624 points
Admission school: Xi’an Jiaotong University
□Reporter Li Yichuan, intern, Wu Yihan, text
Photo by reporter Chen Xiaodong
Qi Tailei and Qi Taian are two years apart in age. The older brother Qi Tailei, who is repeating his studies at Puyang Oilfield Middle School, and the younger brother Qi Taian, who is studying at Fengqiu No. 1 Middle School, also got a high score of 624 points in the test this year. My elder brother was admitted by the School of Physical Science and Technology of Wuhan University, and my younger brother was admitted by the Department of Energy and Power and Automation of Xi’an Jiaotong University. The reporter drove to Group 4 of Dasha Village, Juxiang Township, Fengqiu County, and met the brothers.
They are all about 1.78 meters tall, both are obviously on the thin side, both wear glasses, and they all have simple and shy expressions – this is the first impression of the reporter Qi Tailei and Qi Taian brothers. The bedroom of the two brothers is quite simple, with two beds, two small desks, and a simple electric fan hanging on a wooden stick.
strange!
The two brothers scored 624 in the same test
The reporter casually asked a few villagers in Dasha Village. When they heard that they were interviewing two brothers who went to college, many villagers said: “Is it the two children of Qingyi’s family? The test scores are still the same. The two brothers are two years apart, and they got the same scores in the college entrance examination, which is unbelievable.”
When the reporter saw the two brothers, they were studying the city map of Wuhan sent with the admission notice in a stuffy small room. “This is the map sent by Wuhan University to my brother. We want to see which bus my brother can take to get to school.” said his younger brother Qi Tai’an.
Both brothers have received admission notices. Checking the transcripts of the two, the reporter found that the younger brother took the exam at Fengqiu No. 1 Middle School, and the older brother took the exam at Puyang Youtian Middle School.
It is understood that Qi Tailei also graduated from Fengqiu No. 1 Middle School. In 2009, he applied for Tianjin University with a high score of 603 and was not admitted. He chose to repeat the exam. “My family is relatively poor. Considering that Puyang Youtian Middle School will be free of tuition and miscellaneous fees, so after the summer vacation, let him go to Puyang to repeat his studies alone. Because the travel expenses are too expensive, we have no one to send him off.” Father Qi Qingyi burst into tears explain.
Both of them scored 624 points in the college entrance examination, and their scores in each subject were very similar. The two have the same score in mathematics, both with 126 points, the elder brother with 136 points and the younger brother with 133 points in foreign language. In the comprehensive score, the elder brother scored 264 points and the younger brother scored 261 points. During the interview, the reporter learned that their scores ranked fourth in Fengqiu County’s college entrance examination results this year.
Thrift!
The two of them will only eat one dish per meal.
The yard of Qi’s family is very clean. There are two tile-roofed houses and one small bungalow. The only thing of value in the yard is a tractor. Qi Qingyi said that their family has 6 acres of land, which is the only source of income for the whole family. “My legs and feet are not good, so I can’t do heavy work at all. Many farm work is done with the help of my two children. All these years, thanks to my two children!” Chang Qingyun, the child’s mother, said with a sob.
Father Qi Qingyi told the reporter that the two children are very sensible, and usually give them 200 yuan a month for living expenses, but they are not willing to spend it.
The two brothers’ biggest hobby is visiting bookstores. The older brother Qi Tailei told the reporter: “When my younger brother and I were in the same school, we would buy a dish and eat together in the school cafeteria. After a month, the most we could spend was 300 yuan. The rest of the money we spent on books.”
Jia Gongjie, business principal of Fengqiu No. 1 Middle School, said that it was a coincidence that the Qi brothers had the same test scores, but it was inevitable that they both got such high scores. They study very hard and help each other in their studies. “In addition, the two brothers care about each other in life, but secretly compete and compete with each other in study.”
Disaster!
More than 10,000 yuan of tuition fees are worrying about the whole family
Speaking of the combined tuition fees of more than 10,000 yuan for the two brothers, Qi Qingyi and his wife couldn’t hide their sorrow. “My child’s father has had liver disease for more than 10 years, and my legs often suppurate, and I have been unable to do heavy work. Our two illnesses have made our two children suffer.” Mother Chang Qingyun said with a sigh.
“In the past, the family could barely maintain the living expenses of two children in high school. Now that the two of them are going to college, the tuition fee alone costs more than 10,000 yuan. What should we do?” Qi Qingyi said with a sigh.
Xi’an Jiaotong University will start school in mid-August, and Chang Qingyun has already made bedding for his two sons. “I bought it at the school. One is too expensive, and the other is worried that the cotton in it is not good.”
Regarding the future, the two brothers said: “Take one step at a time. After we go to college, we will work part-time as tutors to earn some pocket money and reduce the burden on the family. But we still have to study hard. After all, finishing school is the most important thing.”
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On June 30, 2006, the Japanese newspaper reported that the twin sisters Ren Zhenzhen and Ren Jiajia in Class 14 of Xiangcheng High School both scored 598 points (literature and history), which was 7 points higher than the admission control limit for a liberal arts subject in our province.
The Japanese newspaper reported on August 5, 2010 that a pair of twin sisters in Xinmi City, Kang Tingting and Kang Shuangshuang, both scored 531 points in the test. One was admitted to Henan Agricultural University, and the other was admitted to Henan University of Technology.
The Department of Physics has made new progress in the field of 2D van der Waals heterojunction short-wave infrared photodetectors
2019-12-06
Recently, Zhang Liyuan, an associate professor of the Department of Physics, and Gong Youpin, a research associate professor, collaborated with Chen Rui, an associate professor of the Department of Electronics and Electrical Engineering, to report a method based on the ultra-high specific detection rate of exciton transitions between 2D van der Waals (vdW) heterojunction layers. Short-wave infrared photodetectors. They published a paper entitled “Interlayer Transition in a vdW Heterostructure toward Ultrahigh Detectivity Shortwave Infrared Photodetectors” in the top international academic journal Advanced Functional Materials (impact factor 15.621). The first authors of the article are research assistant Qi Tailei and research associate professor Gong Youpin (co-first authors) from the Department of Physics. Gong Youpin, Chen Rui and Zhang Liyuan are the co-corresponding authors.
Short-wave infrared (SWIR) photodetectors can detect the 1.0–3.0 μm spectrum and can be widely used in remote sensing, imaging, and free-space communication. However, conventional commercial SWIR photodetectors mainly rely on HgCdTe or InAs/GaSb II–type superlattices and InGaAs/GaAsSb II–type quantum wells. However, they all have some bottlenecks. For example, HgCdTe semiconductors have problems such as raw material toxicity, poor uniformity, and low yield. Moreover, the HgCdTe SWIR photodetector must work at a low temperature to suppress dark current (or thermal noise), so as to obtain a high specific detectivity. In addition, traditional SWIR photodetectors based on type II superlattices or multiple quantum wells require expensive molecular beam epitaxy processes to realize device fabrication. Therefore, it is of great significance to develop new uncooled, high-performance SWIR photodetectors with simple process.
Accordingly, Qi Tailei, doctoral student Li Alei and others, under the direct guidance of research associate professor Gong Youpin, constructed a GaTe/InSe vdW type II semiconductor heterojunction through 2D layered material vdW heterojunction energy band engineering (Figure 1), and in Short-wave infrared light detection based on interlayer exciton transition (interlayer transition) has been successfully realized in this heterojunction, so that the detectable spectral range exceeds the cut-off wavelength limited by the band gap of a single 2D material layer itself.
In this study, they first grew high-quality GaTe and InSe single crystal bulks, and prepared a GaTe/InS vdW type II heterojunction with a clean interface by layer-by-layer dry transfer (Figure 1a). By constructing a theoretical model and calculation of the heterojunction, they found that when an InSe layer was introduced on the surface of a single GaTe, the band gap decreased from ~1.3 eV of a single GaTe to ~0.5 eV of the overall heterojunction (Fig. 1b,c), This new bandgap state implies that when the incident photon energy is greater than ~0.5 eV, the excitons between the GaTe layer and the InSe layer (interlayer excitons, the bound electrons and holes in the excitons are located in different 2D material layers ) generation and transition feasibility. The optoelectronic experimental test of the GaTe/InSe vdW heterojunction also confirmed the extraordinary detection capability of the device in the 1.0–1.55 μm band, thus achieving a breakthrough beyond single GaTe (cutoff wavelength ~0.73 μm) and InSe (cutoff wavelength ~0.95 μm) μm) bandgap-limited high-performance shortwave infrared detection. These properties include photoresponsivities as high as 267.4 and 1.5 A/W at 1064 and 1550 nm, respectively, and specific detectivities D* as high as ~1014 and 1012 Jones, respectively (Fig. 1d,e). And the ultrahigh specific detectivity of the device is comparable to the latest commercial SWIR photodetectors based on InGaAs and InAs narrow-bandgap semiconductors, HgCdTe, InAs/GaSb II-type superlattices, and InGaAs/GaAsSb II-type superlattices.
The results show that 2D vdW heterojunctions with type II band alignment can realize interlayer exciton transitions, which provides a feasible new strategy for the development of high-performance optoelectronic devices in the short-wave infrared or longer wavelength range, thereby surpassing Constraints on the band gap and heteroepitaxy of the constituent materials. It is foreseeable that this new type of 2D heterojunction has a wide range of applications in flexible optoelectronic devices.
Figure 1_copy.jpg
Figure 1: Device structure and photodetection performance.
(a) 3D device structure diagram;
(b) The corresponding full and partial (atomic type-based) densities of states of the GaTe/InSe heterojunction;
(c) Schematic diagram of the type II band arrangement of GaTe/InSe;
(d) Comparison of photoresponsivity versus wavelength between GaTe/InSe heterojunction photodetectors and single InSe(GaTe) devices;
(e) Specific detection rate.
The research has been strongly supported by the National Natural Science Foundation of China, the Guangdong Provincial Innovation and Entrepreneurship Team Program, the discipline layout of the Shenzhen Science and Technology Commission, and the start-up supporting funds of SUSTech and Shenzhen.
Prof. Judy Z. Wu from the University of Kansas and Prof. Ridwan Sakidja from Missouri State University also made important contributions to this research.
Article link (Adv. Funct. Mater. 2019, 1905687): https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.201905687