Comment about the use of unconventional Tauc plots for bandgap energy determination of semiconductors using UV–Vis spectroscopy by Peverga R. Jubu, E. Danladi, U.I. Ndeze, O. Adedokun, S. Landi, Jr., A.J. Haider, A.T. Adepoju, Y. Yusof, O.S. Obaseki, F.K. Yam

Subjects: “…Tauc plot…”
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Sol-gel synthesis, characterization of ZnO thin films on different substrates, and bandgap calculation by the Tauc plot method by D. Parajuli, Sandip Dangi, Bhumi Raj Sharma, Nunu Lal Shah, Devendra KC

“…Similarly, their optical bandgap energy calculated by the Tauc Plot method were 3.641eV, 3.385eV, and 3.495 eV respectively. …”
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Determination of the Optical Band gap Energy from the Extraction and Evaporation of Anthocyanin Compound Sea Lettuce (Ulva Lactuca L.) Using Tauc Plot Method by Fiar Tri Santika, Hery Suyanto, Ni Luh Putu Trisnawati, I Putu Tedy Indrayana

“…The optical energy gap of anthocyanin compounds from sea lettuce extract (Ulva lactuca L.) has been calculated using the Tauc plot method. Sea lettuce plants taken at Sanur Beach Bali. …”
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Ellipsometry Study of CdSe Thin Films Deposited by PLD on ITO Coated Glass Substrates by Flavia P. N. Inbanathan, Pawan Kumar, Kiran Dasari, Ram S. Katiyar, Jixin Chen, Wojciech M. Jadwisienczak

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Enhanced NLO response and switching self-focussing in benzodiazepine derivative with –NO2 and -Br substitution by Aswathy P, I. Hubert Joe, B. Narayana, B.K. Sarojini, K.R. Harshitha, J. Clemy Monicka

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Effect of urea on optical properties of potassium hydrogen phthalate (KHP) single crystals for NLO applications by R.K. Raju, P. Beena, H.S. Jayanna

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Optoelectronic investigation and spectroscopic characteristics of polyamide-66 polymer by Al-Shawabkeh Ali F.

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Bandgap Energy of TiO₂/M-Chlorophyll Material (M=Cu²⁺, Fe³⁺) by Muhammad Yusprianto, Titin Anita Zaharah, Imelda Hotmarisi Silalahi

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Behavior of Ternary Mixtures of Hydrogen Bond Acceptors and Donors in Terms of Band Gap Energies by Alberto Mannu, Francesca Cardano, Salvatore Baldino, Andrea Fin

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Optical and Magnetic Response of Pure and CU-Ions Substituted Dysprosium Oxide Thin Films for Various Applications by Muhammad Tauseef Qureshi

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Preparation of low temperature titanium dioxide thin films by using doctor-blade method / Nurafiqah Husna Abdul Rashid by Abdul Rashid, Nurafiqah Husna

“…Besides, the band gap value measured by Tauc plot.…”
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Optical Properties and UV Sensing Response of Nitrogendoped TiO2 Thin Film by CVD by Siowwoon, Ng, Sau, Siong Tneh, Fong, Kwong Yam, Hassan, Zainuriah

“…The transmittance measurement was carried out in the ultraviolet-visible spectral region to evaluate the film thickness, optical constants, and the optical band gap was determined by Tauc plot. A metal-semiconductor-metal (MSM) ultraviolet (UV) photodetector by the Pt/N-doped TiO2 film has shown a positive response towards UV illumination.…”
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Modulation of Structure and Optical Property of Nitrogen-Incorporated VO₂ (M1) Thin Films by Polyvinyl Pyrrolidone by Meinan Wan, Mo Xiong, Shouqin Tian, Xingzhu Chen, Bin Li, Xuesong Lu, Xiujian Zhao

“…The calculated <i>E_g</i>₁ and <i>E_g</i>₂ from the first-principles theory were 0.1–0.5 eV and 1.4–1.6 eV, respectively. The Tauc plot estimation and theoretical calculations suggested that the combined effect of N-doping and N-adsorption with the extra atom (H, N, and O) decreased the critical temperature (<i>τ_c</i>) due to the reduction in <i>E_g</i>₁.…”
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Easily Processable, Highly Transparent and Conducting Thiol-Functionalized Reduced Graphene Oxides Langmuir-Blodgett Films by Ki-Wan Jeon

“…Optical and band gap of the LB film was estimated from Tauc plot and semi-logarithmic-scale plot of sheet resistance versus temperature to be 0.6 and 0.1 eV, respectively. …”
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Annealing effect on structural and optical properties of glad synthesized Gd2O3 nanorod by Ph. Nonglen Meitei, Naorem Khelchand Singh

“…A significant enhancement in the photon absorption (200–300 nm) was observed, which can be attributed to increased grain size, improved crystallinity, and large generation of electron–hole pairs. In addition, the Tauc plot showed a decrease in the bandgap from 5.05 eV to 4.98 eV after annealing at 500 °C.…”
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Synthesis of ZnO Nanoparticles by Chemical Method and its Structural and Optical Characterization by Rishi Ram Ghimire, Ashutosh Parajuli, Suresh Kumar Gupta, Krishna Bahadur Rai

“…Using the UV-Visible spectrophotometer and Tauc plot method, the optical band gap of ZnO is found to be 3.35 eV. …”
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Structural, thermal and optical studies of Eu3+ ion doped Ge22As20Se58 glass by Amarendra Kumar Singh, Neeraj Mehta, Hirdeysh Mishra, S K Mishra

“…The optical analysis using UV–vis absorption spectroscopy showed that the activity of Eu-doped ChG has been extended across the UV-visible region. Tauc plot derived band gap energy of Eu-doped and undoped ChG is found to be 2.2 and 2.6 eV, respectively.…”
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Structural, morphological, mechanical, and electronic properties of nickel substituted manganese oxide (NixMn1-xO, x= 0.0, 0.2, 0.4) for electronic applications by Muhammad Ahmad, Mukhtar Ahmad, Muhammad Hammad Aziz, Muhammad Asif

“…Raman spectroscopy results disclosed the vibration modes of the respective materials. The Tauc plot reveals the semiconducting nature of the compounds. …”
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To Study the Cadmium Sulphide Thin Films Synthesis by Simple Spin Coating Method for Energy Application by Jagmohan Lal Sharma, S.K. Jain, Balram Tripathi, Mahesh Chandra Mishra

“…The optical band gap of CdS calculated by the Tauc-plot method and obtained 2.40 and 2.41eV for powder and film. …”
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The Mechanism of the Formation of Binary Compounds Between Zn and S Impurity Atoms in Si Crystal Lattice by Nurulla F. Zikrillaev, Maruf K. Khakkulov, Bobir O. Isakov

“…And their band gap energies were determined using the Tauc Plot method. According to the results of the study, the optical band gaps in group II and III samples were 1.12 eV, whereas the band gap energy in group I samples after additional thermal treatment at a temperature of 875 °C turned out to be 1.31 eV. …”
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