FTPS Fourier Transform Photocurrent Spectroscopy (FTPS) / Highly Sensitive External Quantum Efficiency (HS-EQE)

Advancing Detectivity and Stability of Near-Infrared Organic Photodetectors via a Facile and Efficient Cathode Interlayer

Yu-Ching Huang, Tai-Yuan Wang, Zhi-Hao Huang, and Svette Reina Merden Solante Santiago Published: May 9, 2024 https://doi.org/10.1021/acsami.4c01466

… mode using a QE-R system (Enlitech, Taiwan) and a Si-based …

… photocurrent spectroscopy system (FTPS, Enlitech), where … … through the devices (REPS+, Enlitech). All of the devices were …

Reference to：FTPS、QE-R、REPS+

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Alleviating excessive aggregation of a non-fullerene acceptor by delaying and shortening the crystallization time to reduce the energy loss of ternary organic solar cells

Jiaqi Pan, Jian Guan, Zehao Wang, Rui Zhang, Yingying Fu, Xinhong Yu, Qiang Zhanga  and Yanchun Han First published  16 Feb 2024 https://doi.org/10.1039/D3TC04516A

… by Enlitech), and the testing range is 0–220 mA cm −2 . The FTPS-EQE measurement was carried out on an Enlitech FTPS PECT-600 instrument, and the testing range is 800–1300 nm. …

Reference to：FTPS、EQE、PECT-600

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Nitrogen-Blowing Assisted Strategy for Fabricating Large-Area Organic Solar Modules with an Efficiency of 15.6%

by Yingying Cheng, Yitong, Dongyang Zhang, Xiangda Liu, Zezhou Xia, Xiujun Liu, Xueyuan Yang and Wenchao Huang Published: 4 June 2024 https://doi.org/10.3390/polym16111590

… silicon reference solar cell (SRC2020, Enlitech) to ensure a consistent illumination of 100 … … response evaluation system (QE-R, Enlitech). The absorption and transmission spectra were …

Reference to：FTPS、SRC2020、QE-R

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Non-fullerene acceptor with asymmetric structure and phenyl-substituted alkyl side chain for 20.2% efficiency organic solar cells

Yuanyuan Jiang, Shaoming Sun, Renjie Xu, Feng Liu, Xiaodan Miao, Guangliu Ran, Kerui Liu, Yuanping Yi, Wenkai Zhang & Xiaozhang Zhu Published: 12 June 2024 https://doi.org/10.1038/s41560-024-01557-z

… spectroscopy (FTPS)-EQE was measured using an integrated system (PECT-600, Enlitech), … … through the devices (ELCT-3010, Enlitech). EQE EL measurements were performed for all …

Reference to：FTPS、EQE、PECT-600、ELCT-3010

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Reducing Voltage Losses in Organic Photovoltaics Requires Interfacial Disorder Management

Rong Wang, Leng Han, Ning Li, Christos L. Chochos, Vasilis G. Gregoriou, Larry Lüer, Christoph J. Brabec First published: 25 April 2024 https://doi.org/10.1002/aenm.202400609

… EQE, EL, and FTPS-EQE Measurement: Quantum efficiency measure- ment system QE-R (Enlitech) was used to record the EQE data for all the samples. EL measurements were …

Reference to：FTPS、EQE、EL、QE-R

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Ionic liquid tailoring defect/interface-induced recombination loss toward efficient Dion-Jacobson quasi-2D perovskite solar cells

Zihao Zhai , Jieyi Chen, Qi Liu , Jin Yang , Sai Wang , Yuanyuan Zhu , Qingyue Jiang , Yufang Li First published: 1 February 2024 https://doi.org/10.1016/j.cej.2024.148586

… (FTPS) measurement was performed by an integrated system PECT-600 (Enlitech Inc.). The … … efficiency measurement system (Model REPS, Enlitech Inc.). Transient photovoltage (TPV) …

Reference to：FTPS、PECT-600、REPS

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Mapping Interfacial Energetic Landscape in Organic Solar Cells Reveals Pathways to Reducing Nonradiative Losses

Gaurab J. Thapa, Mihirsinh Chauhan, Jacob P. Mauthe, Daniel B. Dougherty, Aram Amassian Published: 17 Jun 2024 https://doi.org/10.48550/arXiv.2406.11735

… The s-EQE spectra of the OPVs are measured using FTPS PECT600 (Enlitech). The photocurrent response of the OPV was amplified and modulated using a lock-in-amplifier, where …

Reference to：FTPS、EQE、PECT600

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The Multi‐Functional Third Acceptor Realizes the Synergistic Improvement in Photovoltaic Parameters and the High‐Ratio Tolerance of Ternary Organic Photovoltaics

Yuhao Liu, Lingling Zhan, Zhongjie Li, Hang Jiang, Huayu Qiu, Xiaokang Sun, Hanlin Hu, Rui Sun, Jie Min, Jinyang Yu, Weifei Fu, Shouchun Yin, Hongzheng Chen First published: 13 August 2024 https://doi.org/10.1002/advs.202405303

… Semilogarithmic plots of normalized EL spectra, measured EQE spectra, and FTPS-EQE spectra as a function of energy for devices based on a) D18:Y6, b) D18:BTP-SA1, c) D18:BTP …

Reference to：FTPS、EL、EQE

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Achieving High Efficiency and Stability in Organic Photovoltaics with a Nanometer-Scale Twin p–i–n Structured Active Layer

Bin Chang, Bing-Huang Jiang, Chih-Ping Chen, Kai Chen, Bo-Han Chen, Shaun Tan, Tzu-Ching Lu, Cheng-Si Tsao, Yu-Wei Su, Shang-Da Yang, Cheng-Sheng Chen, and Kung-Hwa Wei First published: July 23, 2024 https://doi.org/10.1021/acsami.4c08868

… An integrated system (Enlitech, Taiwan) was used to determine the external quantum … … Figure S7a–c shows the fitting curves and experimental data of the FTPS-EQE and EQE EL curves …

Reference to：FTPS、EQE、EL

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Highly sensitive water pollution monitoring using colloid-processed organic photodetectors

Tengfei Li, Gangjian Hu, Hua Wu, Li Ding, Jianqi Zhang, Mengjie Sun, Yawen Li, Zesheng Liu, Yuchuan Shao, Yanjun Fang, Yan Qiao, Liang Shen & Yuze Lin Published: 07 June 2024 https://doi.org/10.1038/s44221-024-00247-0

… b,c, FTPS-EQE spectra and the exponential fit of E U (b) and tDOS curves (c) for single- … … by a solar cell spectral response measurement system (Enlitech, QE-R3011). The light intensity …

Reference to：FTPS、EQE、QE-R3011

A promising non-fullerene acceptor for near-infrared organic photodetectors operating with low dark current and high response speed

Yu-Ching Huang , Zhi-Hao Huang , Tai-Yung Wang , Priyanka Chaudhary , Jen-Fu Hsu , Kun-Mu Lee Published: 15 May 2023 https://doi.org/10.1016/j.cej.2023.142633

… in DC mode using a QE-R system (Enlitech, Taiwan) and a silicon-based photodetector ( …

… -transform photocurrent spectroscopy external quantum efficiency (FTPS-EQE; Enlitech) …

Reference to：FTPS、QE-R、EQE

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Mitigating Surface Deficiencies of Perovskite Single Crystals Enables Efficient Solar Cells with Enhanced Moisture and Reverse‐Bias Stability

Xinbo Guo, Ning Li, Yushu Xu, Jianfu Zhao, Fucai Cui, Yimu Chen, Xiaoyan Du, Qinghai Song, Guodong Zhang, Xiao Cheng, Xutang Tao, Zhaolai Chen First published: 22 February 2023 https://doi.org/10.1002/adfm.202213995

… The high-resolution EQE was conducted by a fourier-transform photocurrent spectrometer(Enlitech FTPS PECT-600). The J–V curves of MAPbI 3 single crystal solar cells were …

Reference to：FTPS、EQE、PECT-600

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Pushing the Limit of Open‐Circuit Voltage Deficit via Modifying Buried Interface in CsPbI₃ Perovskite Solar Cells

Chenzhe Xu, Suicai Zhang, Wenqiang Fan, Feiyu Cheng, Haochun Sun, Zhuo Kang, Yue Zhang First published: 19 November 2022 https://doi.org/10.1002/adma.202207172

… [ 50 ] FTPS-EQE was measured using an integrated system (PECT-600, Enlitech), where the photocurrent was amplified and modulated by a lock-in instrument. EQE EL measurements …

Reference to：FTPS、EQE、PECT-600、EL

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Benzotriazole‐Based Polymer Acceptor for High‐Efficiency All‐Polymer Solar Cells with High Photocurrent and Low Voltage Loss

Xiaoming Li, Xiaopeng Duan, Jiawei Qiao, Shilin Li, Yunhao Cai, Jianqi Zhang, Yuan Zhang, Xiaotao Hao, Yanming Sun First published: 11 November 2022 https://doi.org/10.1002/aenm.202203044

… 2a displays the optimized current density–voltage (J–V) curves of the binary and ternary devices with PTz series under simulated AM 1.5 G illumination at 100 mW cm −2 (Enlitech, QE- …

Reference to：FTPS、QE-R

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Phase-stable FAPbI3-based single crystals with 600-μm electron diffusion length

Mingxuan Lv, Ning Li, Gan Jin, Xiaoyan Du, Xutang Tao, Zhaolai Chen Published:November 13, 2023 https://doi.org/10.1016/j.matt.2023.10.021

… Long carrier diffusion length is important for optoelectronic devices that require large electrode spacing or thick active layers. Formamidinium lead triiodide (FAPbI 3 ) perovskite is a …

Reference to：FTPS、EQE、EL、QE-R

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Near-infrared absorbing acceptor with suppressed triplet exciton generation enabling high performance tandem organic solar cells

Zhenrong Jia, Qing Ma, Zeng Chen, Lei Meng, Nakul Jain, Indunil Angunawela, Shucheng Qin, Xiaolei Kong, Xiaojun Li, Yang (Michael) Yang, Haiming Zhu, Harald Ade, Feng Gao & Yongfang Li Published: 04 March 2023 https://doi.org/10.1038/s41467-023-36917-y

… In addition, we also analyzed Urbach energy (E u ) of the two blends from Fourier transform photocurrent spectroscopy EQE (FTPS-EQE) spectra 51 . The value of E u can be quantified …

Reference to：FTPS、EQE

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Mapping Electronic Disorder in Organic Solar Cells Reveals Pathway to Reducing Nonradiative Losses

Gaurab J. Thapa, Mihirsinh Chauhan, Jake Mauthe, Daniel B. Dougherty, Aram Amassian Published: 9 Aug 2023 http://dx.doi.org/10.2139/ssrn.4535247

… The sEQE spectra of the OPVs are measured using FTPS PECT600 (Enlitech). The photocurrent response of the OPV was amplified and modulated using a lock-in-amplifier, where …

Reference to：FTPS、EQE、PECT600

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Small Energetic Disorder Enables Ultralow Energy Losses in Non‐Fullerene Organic Solar Cells

Yanan Shi, Lingyun Zhu, Yangjun Yan, Meiling Xie, Guang Liang, Jiawei Qiao, Jianqi Zhang, Xiaotao Hao, Kun Lu, Zhixiang Wei First published: 07 April 2023 https://doi.org/10.1002/aenm.202300458

… spectroscopy external quantum efficiency (FTPS-EQE) spectra … … system (PECT-600, Enlitech), where the photocurrent was …

… devices (ELCT-3010, Enlitech). EQE EL measurements were …

Reference to：FTPS、EQE、PECT-600、ELCT-3010、EL

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Revealing the crystalline packing structure of Y6 in the active layer of organic solar cells: the critical role of solvent additives

Xinxin Xia, Le Mei, Chengliang He, Zeng Chen, Nannan Yao, Minchao Qin, Rui Sun, Zhenzhen Zhang, Yuyu Pan, Yiqun Xiao, Yuze Lin, Jie Min, Fengling Zhang, Haiming Zhu, Jean-Luc Bredas, Hongzheng Chen, Xian-Kai Chen and Xinhui Lu First published: 26 Sep 2023 https://doi.org/10.1039/D3TA05177C

… ZC carried out the TAS measurement under the supervision of HZNY conducted the FTPS-EQE and EQE EL measurements under the supervision of FZMQ and YX helped with the data  …

Reference to：FTPS、EQE、EL

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NIR-absorbing polymer acceptor for efficient all-polymer solar cells with a record-high photocurrent of 26.5​ mA​ cm− 2

Qunping Fan , Huiting Fu , Hairui Bai , Rui Zhang , Kexin Huang , Qingdong Zheng , Wei Ma , Alex K.-Y. Jen Published: September 2023 https://doi.org/10.1016/j.decarb.2023.100024

… 4c, Fourier transform photocurrent spectroscopy (FTPS)-EQE were measured to estimate … … 1 sun illumination generated by a solar simulator (EnliTech), and the output current density was …

Reference to：FTPS、EQE

Importance of structural hinderance in performance–stability equilibrium of organic photovoltaics

Baobing Fan, Wei Gao, Xuanhao Wu, Xinxin Xia, Yue Wu, Francis R. Lin, Qunping Fan, Xinhui Lu, Wen Jung Li, Wei Ma & Alex K.-Y. Jen Published: 08 October 2022 https://doi.org/10.1038/s41467-022-33754-3

… FTPS) to sensitively detect the EQE (EQE FTPS ) in the low photon energy region. Through exponential fitting of the band edge of EQE FTPS …

… REPS Pro system (Enlitech) with a Keithley …

Reference to：FTPS、EQE、REPS Pro

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Impact of the segment ratio on a donor–acceptor all-conjugated block copolymer in single-component organic solar cells

Yu-Cheng Tseng, Aoto Kato, Jia-Fu Chang, Wen-Chang Chen, Tomoya Higashihara and Chu-Chen Chueh First published  08 Mar 2022 https://doi.org/10.1039/D2NR00437B

… The FTPS-EQE was performed on FTPS PECT-600 from Enlitech Co., Ltd and the EQE EL was measured using REPS from Enlitech Co., Ltd for calculating the energy loss. Time- …

Reference to：FTPS、EQE、PECT-600、EL、REPS

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Coil–rod–coil triblock copolymers synthesized by macromolecular clicking and their compatibilizer effects in all-polymer solar cells

Sultan Otep , Yu-Cheng Tseng , Naomasa Yomogita , Jia-Fu Chang , Chu-Chen and Tsuyoshi Michinobu First published on 25th November 2021 https://doi.org/10.1039/D1TC04948H

… from a xenon lamp during illumination (QE-R, Enlitech Co., Ltd) and using a standard single … … The FTPS-EQE was measured using the FTPS PECT-600 instrument from Enlitech, which …

Reference to：FTPS、QE-R、EQE、PECT-600

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γ-ester-functionalized 1, 1-dicyanomethylene-3-indanone end-capped nonfullerene acceptors for high-performance, annealing-free organic solar cells

Seunglok Lee, Geunhyung Park, Mingyu Jeong, Byongkyu Lee, Seonghun Jeong, Jeewon Park, Yongjoon Cho, Seung Man Noh, and Changduk Yang Published: July 18, 2022 https://doi.org/10.1021/acsami.2c08370

… FTPS-EQE was measured using an integrated system (PECT-600, Enlitech). EQE EL … … /current sources through the devices (ELCT-3010, Enlitech). All of the devices were prepared for …

Reference to：FTPS、EQE、PECT-600、ELCT-3010

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Suppressed recombination loss in organic photovoltaics adopting a planar–mixed heterojunction architecture

Kui Jiang, Jie Zhang, Cheng Zhong, Francis R. Lin, Feng Qi, Qian Li, Zhengxing Peng, Werner Kaminsky, Sei-Hum Jang, Jianwei Yu, Xiang Deng, Huawei Hu, Dong Shen, Feng Gao, Harald Ade, Min Xiao, Chunfeng Zhang & Alex K.-Y. Jen Published: 14 November 2022 https://doi.org/10.1038/s41560-022-01138-y

… (FTPS-EQE, grey line) and electroluminescence (red line) profiles of D18/T9TBO-F (c) and D18/T9SBN-F (d) cells plotted as a function of energy. The low-energy tailing of FTPS …

Reference to：FTPS、EQE

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Organic Solar Cell With Efficiency Over 20% and VOC Exceeding 2.1 V Enabled by Tandem With All‐Inorganic Perovskite and Thermal Annealing‐Free Process

Xiaoyu Gu, Xue Lai, Yuniu Zhang, Teng Wang, Wen Liang Tan, Christopher R. McNeill, Qian Liu, Prashant Sonar, Feng He, Wenhui Li, Chengwei Shan, Aung Ko Ko Kyaw First published: 20 July 2022 https://doi.org/10.1002/advs.202200445

… FTPS-EQE was measured using an integrated system with Fourier transform photocurrentmeter (PECT-600, Enlitech). EQEEL measurement was performed by high-sensitivity solar cell …

Reference to：FTPS、PECT-600

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Tuning Acceptor Composition in Ternary Organic Photovoltaics–Impact of Domain Purity on Non‐Radiative Voltage Losses

Zhaozhao Bi, Hafiz Bilal Naveed, Hongbo Wu, Cankun Zhang, Xiaobo Zhou, Jing Wang, Meng Wang, Xuanhao Wu, Qinglian Zhu, Ke Zhou, Kai Chen, Cheng Wang, Zheng Tang, Wei Ma First published: 20 March 2022 https://doi.org/10.1002/aenm.202103735

… We further estimated the E CT by the EL and Fourier transform photocurrent spectroscopy EQE (FTPS-EQE) spectra referred from the Marcus theory. [ 61, 62 ] We applied boundary …

Reference to：FTPS、EL、EQE

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High performance polymerized small molecule acceptor by synergistic optimization on π-bridge linker and side chain

Guangpei Sun, Xin Jiang, Xiaojun Li, Lei Meng, Jinyuan Zhang, Shucheng Qin, Xiaolei Kong, Jing Li, Jingming Xin, Wei Ma & Yongfang Li Published: 07 September 2022 https://doi.org/10.1038/s41467-022-32964-z

… Fourier-transform photocurrent spectroscopy external quantum efficiency (FTPS-EQE) was measured by using an integrated system (PECT-600, Enlitech). External electroluminescence …

Reference to：FTPS、EQE、PECT-600

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Efficient all-polymer solar cells with sequentially processed active layers

by Chaoyue Zhao, Hui Huang, Lihong Wang, Guoping Zhang, Guanyu Lu, Han Yu ,Guanghao Lu , Yulai Han ,Mingxia Qiu ,Shunpu Li and Guangye Zhang Published: 18 May 2022 https://doi.org/10.3390/polym14102058

… In this work, we apply the sequential processing (SqP) method to address the relatively low electron mobility in recent all-polymer solar cells (all-PSCs) based on the polymerized small- …

Reference to：FTPS

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Heteroheptacene-based acceptors with thieno[3,2-b]pyrrole yield high-performance polymer solar cells

Zhenghui Luo, Ruijie Ma, Jianwei Yu, Heng Liu, Tao Liu, Fan Ni, Jiahao Hu, Yang Zou, Anping Zeng, Chun-Jen Su, U-Ser Jeng, Xinhui Lu, Feng Gao, Chuluo Yang, He Yan Published: 27 April 2022 https://doi.org/10.1093/nsr/nwac076

… Rationally utilizing and developing synthetic units is of particular significance for the design of high-performance non-fullerene small-molecule acceptors (SMAs). Here, a thieno[3,2-b] …

Reference to：FTPS