Organic Photonics + Electronics最新文献_第5页

Electronic and optical properties of double perovskites A2BX6 (A = Cs; B = Sn, and (X = Cl, Br, I.) using modified Becke Johonson potential study 双钙钛矿A2BX6 (A = Cs)的电子光学性质B = Sn， (X = Cl, Br, i)采用改进的Becke johnson电位研究

Organic Photonics + Electronics Pub Date : 2022-10-03 DOI: 10.1117/12.2632942

K. Vamsi Krishna, S. Sritanvi, N. Reddy, S. Reddy, Deepika Nandyala, Anand Pandarinath, G. Nagakumari, R. Mahesh, P. Venugopal Reddy, Vinay Kandrapu

引用次数: 0

Modulation in charge distribution via polyethylenimine-incorporation into ZnO electron transport layer and its impact on quantum-dots light emitting device stability 聚乙烯亚胺掺入ZnO电子传输层调制电荷分布及其对量子点发光器件稳定性的影响

Organic Photonics + Electronics Pub Date : 2022-10-03 DOI: 10.1117/12.2631581

Dongsub Chung, H. Aziz

{"title":"Modulation in charge distribution via polyethylenimine-incorporation into ZnO electron transport layer and its impact on quantum-dots light emitting device stability","authors":"Dongsub Chung, H. Aziz","doi":"10.1117/12.2631581","DOIUrl":"https://doi.org/10.1117/12.2631581","url":null,"abstract":"Polyethylenimine (PEI) is sometimes used as a passivation layer at the interface between ZnO electron transport layer and quantum-dots emission layer in quantum-dots light emitting devices (QDLEDs). We recently find that blending ZnO with PEI (ZnO:PEI) is advantageous over using it in a separate layer in terms of device stability. In this work, a comparative study between the ZnO:PEI with a neat ZnO ETL is conducted. The ZnO:PEI ETL results in improvement in both EQE and lifetime of QDLEDs compared to the ZnO ETL. By replacing the ZnO ETL with the ZnO:PEI ETL, delayed EL measurements reveal changes in charge distribution across the QDLED. Applying a reverse bias pulse shows that the reversible delayed EL components in the QDLED with the ZnO:PEI ETL stemmed from the electrons placed in a hole transport layer (HTL). The electrons in the HTL induce an annihilation of accumulated holes at the QD EML/HTL that can be a cause of device degradation. The result provides a new insight into the importance of managing charge distribution across the QDLED via ZnO ETL modification for realizing highly stable QDLEDs.","PeriodicalId":145218,"journal":{"name":"Organic Photonics + Electronics","volume":"215 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116304364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Liquid crystal beam steering devices for LiDAR applications 用于激光雷达的液晶光束转向装置

Organic Photonics + Electronics Pub Date : 2022-10-03 DOI: 10.1117/12.2633683

Yannanqi Li, Zhenyi Luo, Shin‐Tson Wu

引用次数: 1

Diffraction of obliquely incident light at oblique helicoidal cholesteric 斜入射光在斜螺旋形胆甾体上的衍射

Organic Photonics + Electronics Pub Date : 2022-10-03 DOI: 10.1117/12.2637321

M. Mrukiewicz, O. Iadlovska, S. Shiyanovskii, O. Lavrentovich

引用次数: 0

Toward chemical sensing: an electrochemical study of the selectivity trend of metal phthalocyanines 走向化学感应:金属酞菁选择性趋势的电化学研究

Organic Photonics + Electronics Pub Date : 2022-10-03 DOI: 10.1117/12.2633101

M. S. Hossain, A. Takshi

{"title":"Toward chemical sensing: an electrochemical study of the selectivity trend of metal phthalocyanines","authors":"M. S. Hossain, A. Takshi","doi":"10.1117/12.2633101","DOIUrl":"https://doi.org/10.1117/12.2633101","url":null,"abstract":"Metalated phthalocyanines (MPcs) are a special class of organic semiconductors having unique chemical structures and properties. The material’s conjugated 18-π electron structure enables a strong fusion with carbon nano tubes (CNTs) which have a highly delocalized π electron structure. This strong binding between MPc and CNT facilitates the study of the material in an electrochemical cell. Here in this account, we report a novel method of identifying the selectivity and sensitivity trend of several MPcs with different metal cores through an electrochemical approach. Sensor electrode was prepared by drop casting the MPc solution on paper strips coated with CNT ink, and then tested in electrochemical cell in a 2-electrode fashion. The nature of the redox reactions between MPc and the VOC analytes (i.e., acetone, ethanol, isopropanol, and methanol) were studied through cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and chronoamperometry. Four different metalated phthalocyanines (CoPc, CuPc, MgPc, and ZnPc) are studied here. Experimental results suggest large shift in conductivity in the CoPc sensor upon exposure to ethanol, MgPc sensor upon exposure to isopropanol, and ZnPc sensor upon exposure to acetone.","PeriodicalId":145218,"journal":{"name":"Organic Photonics + Electronics","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128240207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solubility and molecular alignment behavior of liquid-crystalline polymers by scanning wave photopolymerization 扫描波光聚合液晶聚合物的溶解度和分子排列行为

Organic Photonics + Electronics Pub Date : 2022-10-03 DOI: 10.1117/12.2635808

T. Ishiyama, Y. Kobayashi, H. Nakamura, M. Aizawa, K. Hisano, S. Kubo, A. Shishido

{"title":"Solubility and molecular alignment behavior of liquid-crystalline polymers by scanning wave photopolymerization","authors":"T. Ishiyama, Y. Kobayashi, H. Nakamura, M. Aizawa, K. Hisano, S. Kubo, A. Shishido","doi":"10.1117/12.2635808","DOIUrl":"https://doi.org/10.1117/12.2635808","url":null,"abstract":"Functional soft materials with controlled molecular alignment are attracting much attention in various fields due to their excellent flexibility and functional properties. Among conventional alignment methods, mechanical methods such as rubbing the polymer surface are well-known as a facile route to align various molecules. Besides, photoalignment methods, using photoresponsive molecules and polarized light, enable precise alignment control towards advanced functions. As a novel alignment method combining the advantages of both mechanical and photoalignment methods, we have developed scanning wave photopolymerization (SWaP) where phototriggered molecular diffusion is applied to align molecules. Since it uses the molecular diffusion as a driving force for alignment control, SWaP has the potential to align a variety of molecules. For further exploration of the mechanism, it is necessary to understand the polymer properties; thus, the synthesis of polymers applicable to solution-based analyses is highly desired. In this study, we conducted SWaP to synthesize soluble liquid-crystalline polymer films with one-dimensional alignment. Furthermore, we compared the molecular alignment behavior between SWaP and the conventional rubbing alignment technique using a soluble polymer, and revealed that only SWaP can induce a unidirectional molecular alignment in film.","PeriodicalId":145218,"journal":{"name":"Organic Photonics + Electronics","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129208366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stability of fiber-based organic electrochemical transistors with a gel electrolyte for wearable electronics 可穿戴电子产品用凝胶电解质纤维基有机电化学晶体管的稳定性

Organic Photonics + Electronics Pub Date : 2022-10-03 DOI: 10.1117/12.2633175

Nestor O. Marquez Rios, A. Takshi

引用次数: 1

Blue LED light enhances the growth of Cinchona officinalis L. cultured in vitro 蓝光LED光对金鸡纳体外培养的生长有促进作用

Organic Photonics + Electronics Pub Date : 2022-10-03 DOI: 10.1117/12.2633167

Oscar Vivanco-Galván, Yuliana Jiménez-Gaona, D. Castillo, Hernán Lucero

{"title":"Blue LED light enhances the growth of Cinchona officinalis L. cultured in vitro","authors":"Oscar Vivanco-Galván, Yuliana Jiménez-Gaona, D. Castillo, Hernán Lucero","doi":"10.1117/12.2633167","DOIUrl":"https://doi.org/10.1117/12.2633167","url":null,"abstract":"Cinchona officinalis L. is one of the most important and historically medicinal plants from which the antimalarial drug known as quinine is extracted. It is currently an endangered species. Thus, in vitro culture techniques are applied to propagate the species and to evaluate the effect of artificial light on the physiological development of C. Officinalis L. under controlled conditions. In that sense, the current study has determined the impact of blue led light on the enhancement of growth and number of shoots of Cinchona officinalis L. In vitro explants of C. Officinalis L were cultured on Murashige and Skoog (MS) medium and cultured under the white (control) and blue light-emitting diodes (LED) light. After eight weeks, growth and bud numbers were determined in C. officinalis L. Interestingly, blue light treatment increased the shoot length and bud numbers in comparison with the control. Incorporating blue light during in vitro propagation of C. Officinalis L can be a beneficial way to increase plant quality. Future perspectives could include the impact of blue light on the production of secondary metabolites, activities of antioxidant enzymes, and protein expression of in vitro-grown C. Officinalis L.","PeriodicalId":145218,"journal":{"name":"Organic Photonics + Electronics","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132511025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Crystallized 2D perovskite for x-ray and visible light detection applications 结晶二维钙钛矿用于x射线和可见光探测应用

Organic Photonics + Electronics Pub Date : 2022-10-03 DOI: 10.1117/12.2632581

Lebin Nie, Jiayun Sun, Gang Li, Kai Wang, W. Choy

引用次数: 0

Cholesteric ring resonators 胆甾环谐振器

Organic Photonics + Electronics Pub Date : 2022-10-03 DOI: 10.1117/12.2632230

J. Schmidtke

引用次数: 0